Diseases that should be protected by flowers in greenhouse in winter

Winter is a very difficult season for cold-resistant flowers and plants, so many flowers and plants will be raised in the greenhouse in winter. But the flowers raised in the greenhouse will have some diseases, the editor will introduce to you what problems the flowers in the greenhouse should pay attention to protect in winter.

Greenhouse flowers

To prevent frost damage to cold-resistant flowers, grass curtains should be added at night or small sheds should be set in the shed; you can also dig a storage pool every few meters in the center of the greenhouse to keep warm; or sprinkle some plant ash on the ground, which can generally increase the ground temperature by 1 / 2 ℃.

To prevent moisture damage in long-term sealing, when there are many rainy and snowy days, drainage ditches should be opened outside the greenhouse to reduce soil moisture. In addition, some plant ash can be sprinkled on the basin surface or the ground to absorb heat and increase temperature, absorb moisture and reduce humidity. At the same time, we should pay attention to tightening the greenhouse film and strictly prevent the roof from stagnant water and leakage.

Fully mature organic fertilizer should be applied in the greenhouse to reduce the amount of chemical fertilizer as much as possible. When the weather is sunny and windless, it should be ventilated in time to vent the harmful gases in the shed.

The air humidity in the disease prevention greenhouse is high, so special attention should be paid to prevent the occurrence of diseases such as powdery mildew, black spot, anthrax and so on. Anthracnose can be sprayed with 75% chlorothalonil at the initial stage of the disease, powdery mildew can be sprayed with the same amount of Bordeaux liquid, and black spot can be controlled with 1000 times of methyl topiramate. Medication in the shed should avoid sunny noon high temperature period, flowering period.

Knowledge of hydroponic Flowers | knowledge of hydroponic Flowers

Knowledge of hydroponic Flower | Ten questions on hydroponic Flower Technology

1. What kind of flowers are suitable for hydroponic culture? What are its advantages?

Answer: theoretically, any flower can be hydroponically cultured, but different kinds of flowers have different requirements for the environment. For example, some varieties that need to control water to promote flowers may have an impact on flowering under hydroponic conditions, and some plant lines are sensitive to hypoxia. It is necessary to pump air into the nutrient solution regularly to replenish oxygen. At the same time, different kinds of flowers have different nutritional requirements, so it is necessary to adopt the appropriate formula of nutrient solution. Therefore, flowers and plants can not be hydroponically cultured until they are properly domesticated and adapted. There are many plants suitable for hydroponic culture, including money tree, rich tree, bean green, sun god, bamboo taro, cherub, Marianne, mountain and kelp, golden cactus, golden orchid, tiger tail orchid and so on. Hydroponic flowers can be a long bath without watering and fertilization, the same leaves, clean and hygienic, beautiful and elegant, is the first choice for home beautification and greening.

2. What substances are contained in the nutrient solution of hydroponic flowers?

A: hydroponic nutrient solution contains all the essential nutrients needed for flower growth, including nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, zinc, copper, boron, molybdenum, atmosphere and so on. It is a colorless, tasteless, non-toxic product, please rest assured to use.

3. Why do hydroponic flowers use two concentrates?

Answer: the reason why the concentrated nutrient solution of hydroponic flowers is divided into two parts is mainly because it is considered that when the concentration of calcium, magnesium, iron, zinc, copper and other metal nutrient elements in the nutrient solution is too high, it will precipitate each other and make the nutrition invalid. therefore, in order to ensure adequate and balanced nutrient supply, these non-toxic compounds cannot be mixed together in the concentrated nutrient solution. Therefore, at present, the hydroponic nutrient solution sold on the market is only one kind, and the nutrients are often unbalanced.

4. Is the nutrient solution in the hydroponic flower container as much as possible?

A: no. The depth of nutrient solution in the container should be determined according to the growth of flower roots, not too much. In general, when the root system is relatively developed, part of the root system should be exposed in the air above the liquid surface so that the root system can absorb part of the oxygen from the air, which is very good for the healthy growth of the root system. Do not add too much nutrient solution to the container, but not too little, if it is too little, you need to replenish the nutrient solution frequently, resulting in inconvenient management. It is usually enough to maintain a nutrient layer about 5-10 cm deep.

5. Should hydroponic flowers bask in the sun?

A: it depends on the light demand characteristics of the flowers you grow. If it is a shady type, it is not suitable to let the sun shine directly, but because the hydroponic flowers decorated in the home are usually in a poor light environment, even shady flowers need to be placed regularly on the balcony with slightly stronger light. In general, one day a week when the delivery on the balcony on it.

6. Do hydroponic flowers need a nutrient solution for each kind of flower?

A: no. There are many varieties of hydroponic flowers, but not every kind of flower needs a corresponding nutrient solution, as long as according to different categories to choose different nutrient solution, of course, you can also use a general-purpose nutrient solution. At present, the soilless cultivation Technology Laboratory of South China Agricultural University has developed five types of nutrient solutions: general type, foliage type, inner plant type, orchid type and flower type.

7. Can't flowers cultivated in soil be directly converted to hydroponic culture?

A: the transition from soil cultivation to hydroponic culture must go through a series of treatments. First of all, the soil-cultured flowers are taken out to wash the roots, and then soaked in the hydroponic root treatment solution for about 20 minutes before they can be put into hydroponic containers for hydroponic culture.

8. Does co-culture of flower fish need to be fed?

A: there is no need for feeding. Because most of the fish tails raised by flower fish are small, these fish only need to absorb plankton and root exudates from the nutrient solution to meet their needs. if fed, it is easy to cause the fish to be overfed and died. at the same time, the addition of feed is also easy to cause turbidity of the nutrient solution, and the content of dissolved oxygen in the nutrient solution decreases, affecting the growth of flowers and fish.

9. Replenish or replace nutrient solution when hydroponic flowers are cultivated?

Answer: this depends on the rate of water consumption of plants. If the weather is dry and the plants are larger, it is generally necessary to replenish the nutrient solution after 15-20 days, and the right amount of nutrient solution can be added. Do not replenish the nutrient solution too much, you only need to add about the depth of the container 1 to 3-1 to 2.

10. How long is the period of validity of concentrated nutrient solution for hydroponic flowers? What should you pay attention to when storing?

Answer: the period of validity of hydroponic flower concentrate is almost unlimited, but generally do not use more than 5 years of storage, concentrated nutrient solution storage is to avoid light as far as possible, do not put it in a place accessible to children. Discussion on the experience of hydroponic Flower Culture in Family

As an environment-friendly way of growing flowers, compared with traditional soil-cultured flowers, hydroponic flowers have the following characteristics: ① uses water instead of soil, odorless and tasteless, clean and hygienic. ② does not need to change the pot and loosen the soil, so it can reduce the labor of growing flowers. ③ is light in weight and can be moved anytime and anywhere. The material selection of ④ is flexible and can be matched reasonably according to indoor furnishings. There are few harmful microorganisms in ⑤ water and the seedling rate is high. The seedling rate can be stable at more than 80%.

1. Flower varieties suitable for hydroponic culture have been proved by many years' practice that foliage plants are the first choice for family hydroponic flowers, such as Guangdong evergreen, evergreen, tortoise back bamboo, sea taro, green apple, rich bamboo, asparagus, aloe, duck toe grass, hanging bamboo plum, colored leaf grass, Brazilian wood, pocket coconut, mulberry, hanging golden bell and so on. In addition, a string of red, rhododendron, camellia, cyclamen, Zhu Dinghong, calla, tiger prickly plum, longevity flowers, hyacinth, and so on, this kind of flowering plants have a good effect of hydroponic culture. Kidney fern, marigold, petunia, red back cinnamon and other hydroponic flowers have a low survival rate.

2. Selection of hydroponic containers and mattress substrates ① containers. Any beautiful container that can hold water is fine. It is best to use transparent containers, such as beverage bottles, wine cups, teacups, vases, fish tanks, etc., with a larger mouth to facilitate gas exchange. The size, height, shape, color and texture of the container should be in harmony with the hydroponic flowers. It is best to clean and disinfect before use. ② pad substrate. The cushion substrate is often placed at the bottom of the hydroponic container, which mainly plays the role of stabilizing the plant, such as pebbles, yellow sand, perlite and so on. Small pebbles with elegant appearance and different shapes are the best. It should also be cleaned and sterilized before use.

3. The time of hydroponic culture is the most suitable for hydroponic culture in spring and autumn, but it also varies with flower species. If the indoor temperature is 15 ℃ ~ 28 ℃, foliage plants can be carried out all the year round. Flowering plants should be carried out when the first flower is budding, such as cyclamen, hyacinth, rhododendron, camellia, etc. are often hydroponically cultured in early January, so that the blooming season coincides with the Spring Festival, giving people the joy of spring flowers.

4. Acquisition and treatment of hydroponic materials ① root washing method. Select potted plants with full shape, exuberant growth and free of diseases and insect pests, remove the soil from the pot, wash the soil of the roots with water close to room temperature, and cut off the decayed and aged roots. The dense fibrous roots can be cut off about 1pm 3, but new roots should be avoided, and then soak the roots in 50% potassium permanganate solution for 30 minutes. It can not only sterilize and disinfect, but also promote the hair of new roots, and then carry out hydroponics. This method is mostly used for larger plants and flowers that are difficult to root. ② water insertion method. The sturdy and pest-free semi-lignified branches were cut and inserted in water for hydroponic culture. The cutting part is often two or three millimeters below the stem node, and the cut should be cut with a sharp knife. Scrub, disinfect and smooth with liquor in advance, and remove the lower leaves of the branches. Before rooting, it is best to choose opaque containers or wrap black plastic bags on transparent containers to facilitate cuttings to take root. This method is mostly used for flower varieties with easy rooting and fast growth.

5. ① water for hydroponic culture and exchange water. Mountain spring water is the best, its water quality is clean, no pollution, no precipitation, and contains a variety of trace elements necessary for plant growth. Cold boiled water takes second place. It is best not to use tap water, because it contains many impurities, easy to precipitate, and the chlorine in it is harmful to plant growth. If Rain Water or snow water culture can be used, it is more beneficial to the growth of flowers. ②, change the water. Due to the normal growth and metabolism of plants, after hydroponic culture for a period of time, the oxygen in the water is continuously consumed, at the same time, the root system produces mucus, the water quality is not as fresh as at the beginning, and the nutrient solution added to the water is also absorbed by the plant. too many unabsorbed elements will also do harm to flowers. Therefore, the water must be changed regularly. The change of water quality is directly related to the temperature. Spring and autumn is the flourishing period of flowers, changing water every 7 ~ 10 days, every 4 ~ 6 days in summer, and about 15 ~ 20 days in winter. Every time you change water, you should wash away the mucus from the roots and cut off the aged roots and rotten roots. The height of adding water is equal to that of the rhizosphere, too deep is easy to rot roots due to hypoxia, and too shallow is easy to affect the growth of roots due to lack of water.

6. The addition of hydroponic nutrient solution is the fertilizer of hydroponic flowers. In general, new roots can be produced after hydroponic culture for half a month. With the growth of flowers and plants, we must constantly change water and add nutrient solution. According to the need to buy different types of flower nutrition solution on the market. It must be noted that all kinds of nutrient solutions purchased by ① are raw solutions and must be diluted. The dilution ratio varies with different kinds of flowers, so you should read the instructions carefully. All kinds of special nutrient solution for ② must be special to avoid getting the wrong object. If the orchid nutrient solution is applied to the orchid flowers, the orchid will not blossom or blossom very little. Some flowers do not need nutrient solution, especially in the dormant period, directly regularly change water or add a small amount of sugar water, salt water, the effect is also good, such as green pineapple, evergreen and so on.

Control techniques of Diseases and insect pests in hydroponic Flowers

Hydroponic culture can get rid of the infection of soil diseases and insect pests, but it does not grow in the vacuum environment after strict disinfection, and it will still be damaged by environmental diseases and insect pests. Fungi, bacteria and viruses in the air can still infect the stems and leaves of hydroponic flowers, making them suffer different degrees of pathological changes. Aphids and shell insects can float indoors with the wind and fall on hydroponic flowers to suck juice. Moths lay eggs on flowers, hatch into larvae, and eat the tender leaves and stem tips of flowers. Take off the basin to wash the roots to static hydroponic flowers, will also carry fungi, bacteria, viruses, eggs, larvae, etc., if not carefully checked and cleared, it will leave hidden dangers.

Static hydroponic flowers because of the particularity of their display environment, once the occurrence of diseases and insect pests, it is not suitable to use chemical pesticides to kill insects, nor can they be sterilized with large doses of fungicides. Although these drugs can play the role of insecticidal and sterilization, they can also cause pollution to the environment.

Prevention should be given priority to the diseases and insect pests that may occur in hydroponic flowers. When choosing flowers for hydroponic culture, we should try our best to select flowers with strong plants, luxuriant growth and no diseases and insect pests. If insect pests are found in the process of cultivation, they can be caught manually or washed away with tap water. There are not many infectious diseases in hydroponic flowers, only a few leaves have brown lesions, dry necrosis, or irregular round wet lesions, which are formed by fungal or bacterial infection. After discovery, the whole diseased leaves should be removed and burned, so as not to spread. Prevention of non-infectious diseases. Non-infectious disease is not caused by pathogen infection, it is caused by unsuitable environment. Muggy high-temperature weather in summer, cold winter, dry climate, scorching sun, obstructed air environment, excessive shade, excessive concentration of nutrient solution, or can not be evenly absorbed may cause static hydroponic flower leaf tip scorch and scorch, lower leaves yellowing and falling off. Hot summer temperature is too high, due to a sharp decline in dissolved oxygen in the liquid, and prone to root rot, which is a common symptom of static hydroponics. According to the above different symptoms, find out the corresponding causes, correct them, improve the cultivation environment, and avoid the occurrence of non-infectious diseases.

How to maintain the still hydroponic flowers with disjointed and rotten roots? Due to improper management, or rotting roots due to hypoxia, or infected by fungi, bacteria and viruses, hydroponic flowers have leaf spot disease, leaves yellowing and falling off, resulting in disconnection of the lower end and loss of ornamental value. The hydroponic flowers with disjointed and rotten roots can be treated by the method of plant renewal. The branches that are still intact at the upper end of the stem node are cut off and inserted in clean water. After a period of maintenance and management, new roots can grow and become independent plants. The disjointed branches at the lower end can sprout new buds in the stem nodes as long as they do not rot, and they can be cultivated in nutrient solution at this time. Fugui bamboo, green pineapple, colorful plantain, taro, and so on, can all use this method.

Complete Handbook of Family hydroponic Flowers

There are four methods to obtain hydroponic plants: first, the flowers cultivated in organic media such as soil or inorganic substrates are removed from the pot, and the soil or inorganic matrix on the roots is removed and changed to static hydroponic culture in nutrient solution. Second, use the branches of flowers as cuttings, insert them directly into still water, and cultivate them with nutrient solution after rooting. Third, when some flowers grow, there will be walking stems (stolons), and there are small plants growing on the stems, such as orchids and pineapples, which can be removed for direct hydroponic culture. Fourth, flowers with more tiller buds, such as orchids and pineapples, can be hydroponically cultured by peeling tiller buds with roots. How to prepare hydroponic nutrient solution family hydroponic flowers (or hydroponic flowers for short) must have three basic conditions: first, select plants that are closely related to aquatic plants, that is, plants that retain aquatic genetic genes, which can be used as static hydroponic flowers. Second, select the cultivation container with no leakage and no bottom hole that matches the size and style of hydroponic flowers. Third, the use of ion balance absorption (appropriate ratio), low conductivity nutrient solution with all-element mineral nutrition necessary for the growth of flowers and plants. The recommended formula is as follows: (1) A large number of elements: 0.27 grams of calcium nitrate, 0.13 grams of potassium nitrate, 0.08 grams of potassium dihydrogen phosphate, 0.13 grams of magnesium sulfate. (2) Trace elements: disodium ethylenediamine tetraacetate 8.0 mg, ferrous sulfate 5.0 mg, manganese sulfate 1.4 mg, boric acid 2.0 mg, zinc sulfate 0.07 mg, copper sulfate 0.04 mg, sodium molybdate 0.09 mg. (3) purified water: 1 liter (1000 ml). The pH value is from 5.5 to 6.5, and the electrical conductivity EC is less than 0.5mm / cm. The selected flowers will be cultivated in utensils and injected with hydroponic nutrient solution to become a static hydroponic flower with unique charm. In the preparation of nutrient solution, it is best to use pure water, of course, drinking tap water can also be used to prepare nutrient solution. They are strictly treated, clean and hygienic, and meet the requirements of aseptic (few bacteria) cultivation. However, it must be fully noticed that there are fewer impurities and bacteria in the purified water, and there are basically no essential nutrient elements for plants, while tap water contains unstable nutrients with the change of the composition of the water source. Therefore, the composition of the nutrient solution prepared with pure water is stable and consistent, and the composition of the nutrient solution prepared with tap water is unstable. Liquid chlorine is used when disinfecting tap water. If there is too much chlorine in tap water, it is harmful to flowers and plants. A water purifier can be installed on the faucet. Release the tap water, store it in a large-caliber bucket and put it aside for a few days, stir it with a stick several times to remove chlorine. If you are in urgent need of changing water, you can add 3 to 5 grains of sodium thiosulfate (commonly known as baking soda) in 10 kg of tap water and stir evenly to achieve the effect of removing chlorine. Most foliage flowers like the slightly acidic soil environment, and their alkali tolerance can not be changed in hydroponics. The pH of the solution must be adjusted to 5.5 to 6.5 in static nutrient solution cultivation, which is beneficial to the absorption of trace elements by flowers, the physiological metabolism is not disturbed, the growth is normal and the leaves are green.

How to apply fertilizer outside the root

Static hydroponic cultivation of flowers is a cultivation method under the condition of anoxic root system, which will cause some defects to the normal development of flowers. In order to improve the quality of flowers, foliar fertilization can be used to supplement nutrient elements. During the vegetative growth period of flowers, 0.2% potassium nitrate dilution can be used to spray foliar. Should use fine hole spray pot, try not to make fertilizer liquid loss, the back of the leaf should also be sprayed, spray once a week, spray twice during the growing period, can make hydroponic flowers flourish. Flowers suitable for leaf viewing and flower appreciation at the same time, such as taro, begonia, bamboo begonia, calla, etc., can be sprayed on the leaves once a week with 0.15% potassium dihydrogen phosphate diluent during the budding period until the flowers bloom. The temperature requirement of hydroponic flowers hydroponic cultivation of flowers only changes the way of flower cultivation, does not change the growth habits of flowers, and it is impossible to change their habits. The foliage flowers and plants used in static hydroponics are mostly originated in Latin American rain forests or tropical high temperature, high humidity and shady valleys, which are cold-resistant flowers and plants. In general, when the temperature drops below 10 ℃, some varieties will suffer frost injury, scorched leaves, yellowing old leaves, drooping and falling off. Under the condition of static hydroponics, this phenomenon will also occur. Some flowers have strong cold resistance, such as ivy, vinca, fairy pen, etc., and grow normally under the temperature of 5 ℃ to 7 ℃. When the temperature is more than 30 ℃, the leaves of some flowers lose their luster, grow sluggishly, and have scorched brown spots on the leaf edge, showing a dormant state that can not bear high temperature, such as bamboo begonia, four seasons begonia, colored leaf grass and so on. Rotten roots are common in static water culture at high temperature above 30 ℃, which is also related to the decrease of dissolved oxygen in nutrient solution with the increase of temperature. The temperature is controlled between 15 ℃ and 28 ℃, which is suitable for all kinds of flowers cultivated in static water. In addition, it is also very important to understand the temperature needed for the growth of each kind of flower and to create a suitable temperature condition for it to grow in static hydroponics. Hydroponic flowers need light static hydroponics to choose more shade-resistant, shade-loving foliage flowers and a small number of flowering flowers. The characteristic of this kind of flower is that it does not need strong direct light during the growing period, and some flower varieties grow well in a more shady environment. Generally placed in the indoor, living room, office, as long as there are doors and windows through the scattered light and indoor lighting, can fully meet its needs for lighting. If the light is too weak, the leaves of flowers can not carry out normal photosynthesis, can not accumulate enough nutrition, poor growth. Some colored leaf flowers, such as colored leaf grass, variable leaf wood, etc. in a weak light environment, will lose the color of the leaves and become dull, this kind of flowers can maintain the luster of leaf color only in the environment where the light is more sufficient and is not directed by strong light.

Plant growth has phototaxis, the orientation of flowers should be rotated regularly, this work can be combined with cleaning utensils and changing nutrient solution, and the flowers after root cleaning can be rotated 180 degrees relative to the original orientation, so that the flowers will not grow on one side, and the top tip will always be straight and straight upward. Moist environment and good ventilation the origin of foliage flowers is mostly warm and humid environment. Static hydroponics also need to create a relatively humid environment in order to make it grow well. The simple method is to spray on the leaves of flowers (in order to prevent the spray from soaking the furniture, you can move to the balcony or outdoor operation, and then move the flowers to the indoor display after spraying). It is best to use a fine hole sprinkler when spraying, so that the spray beads stick to the leaves and do not flow down. Stronger flower leaves with wax film, such as tortoise back bamboo, gentleman orchid, can be wiped with wet towels, which can not only increase the humidity of the leaves, but also remove dust from the leaves. For those larger, difficult to move flowers, you can use a shallow dish or basin to hold water next to the flowers, evaporation of water can also increase the humidity of the environment. There should be a good ventilation environment. This is an important condition for the normal growth of flowers, static hydroponic flowers are installed in the room, if the doors and windows are closed, the air is turbid, it is disadvantageous to its growth. In particular, people go to work and leave home during the day, do not open doors and windows, and some even close curtains. In such a harsh environment, hydroponic flowers can not get the necessary light, even lack of fresh air, dissolved oxygen continues to decrease, and their growth will get worse and worse. The phenomenon of leaves yellowing and shedding, and thin and shrunken shoots. Where hydroponic flowers are placed, doors and windows should be opened regularly to form air convection, allowing fresh air from the outside to enter the room, which can increase the content of dissolved oxygen in the nutrient solution. An air-conditioned room can of course reach the temperature needed for hydroponic flowers, but the dry air in the room will cause thin flower leaves with scorched edges and withered tips. Air-conditioned rooms are also short of fresh air, which reduces the content of dissolved oxygen. It should be ventilated timely, which is beneficial to the growth of hydroponic flowers and human health. There are places with large-scale hydroponic flower furnishings, it is more necessary to do this work well.

Prevention and control of diseases and insect pests of hydroponic flowers

Hydroponic culture can get rid of the infection of soil diseases and insect pests, but it does not grow in the vacuum environment after strict disinfection, and it will still be damaged by environmental diseases and insect pests. Fungi, bacteria and viruses in the air can still infect the stems and leaves of hydroponic flowers, making them suffer different degrees of pathological changes. Aphids and shell insects can float indoors with the wind and fall on hydroponic flowers to suck juice. Moths lay eggs on flowers, hatch into larvae, and eat the tender leaves and stem tips of flowers. Take off the basin to wash the roots to static hydroponic flowers, will also carry fungi, bacteria, viruses, eggs, larvae, etc., if not carefully checked and cleared, it will leave hidden dangers. Static hydroponic flowers because of the particularity of their display environment, once the occurrence of diseases and insect pests, it is not suitable to use chemical pesticides to kill insects, nor can they be sterilized with large doses of fungicides. Although these drugs can play the role of insecticidal and sterilization, they can also cause pollution to the environment. Prevention should be given priority to the diseases and insect pests that may occur in hydroponic flowers. When choosing flowers for hydroponic culture, we should try our best to select flowers with strong plants, luxuriant growth and no diseases and insect pests. If insect pests are found in the process of cultivation, they can be caught manually or washed away with tap water. There are not many infectious diseases in hydroponic flowers, only a few leaves have brown lesions, dry necrosis, or irregular round wet lesions, which are formed by fungal or bacterial infection. After discovery, the whole diseased leaves should be removed and burned, so as not to spread. Prevention of non-infectious diseases. Non-infectious disease is not caused by pathogen infection, it is caused by unsuitable environment. Muggy high-temperature weather in summer, cold winter, dry climate, scorching sun, obstructed air environment, excessive shade, excessive concentration of nutrient solution, or can not be evenly absorbed may cause static hydroponic flower leaf tip scorch and scorch, lower leaves yellowing and falling off. Hot summer temperature is too high, due to a sharp decline in dissolved oxygen in the liquid, and prone to root rot, which is a common symptom of static hydroponics. According to the above different symptoms, find out the corresponding causes, correct them, improve the cultivation environment, and avoid the occurrence of non-infectious diseases. How to maintain the still hydroponic flowers with disjointed and rotten roots? Due to improper management, or rotting roots due to hypoxia, or infected by fungi, bacteria and viruses, hydroponic flowers have leaf spot disease, leaves yellowing and falling off, resulting in disconnection of the lower end and loss of ornamental value. The hydroponic flowers with disjointed and rotten roots can be treated by the method of plant renewal. The branches that are still intact at the upper end of the stem node are cut off and inserted in clean water. After a period of maintenance and management, new roots can grow and become independent plants. The disjointed branches at the lower end can sprout new buds in the stem nodes as long as they do not rot, and they can be cultivated in nutrient solution at this time. Fugui bamboo, green pineapple, colorful plantain, taro, and so on, can all use this method. How many hydroponic flowers are arranged for the cultivation of hydroponic flowers in the livable room, which can not only regulate the mood, beautify the environment, but also purify the air, it is beneficial to install a few plants properly. The living room area is not large, and there are too many flowers, causing flowers to compete with people for oxygen at night. So how many flowers should be put in the room? According to the scientists' experiments, it is considered that it is more appropriate to plant one or two kinds of flowers for every 10 square meters according to the area of the room. According to this standard, it is estimated that the rooms with an area of 50 square meters to 60 square meters are equipped with more than 10 hydroponic flowers of different sizes, which can not only satisfy the viewing, but also will not cause the flowers to compete with people for oxygen at night.

How to choose hydroponic flowers in winter

Hydroponic flowers are very popular because they are clean, beautiful and easy to take care of. When choosing hydroponic flowers in winter, we must pay attention to the following four "points":

First, it is necessary to choose flowers that are suitable for hydroponic culture. If you buy back a species that is not suitable for hydroponic culture, it will not take long for the root to rot and gradually die. Aquatic plants, wet plants and a number of less drought-tolerant terrestrial plants are more suitable for hydroponics, such as Upland grass, taro, green apple, taro, Phyllostachys pubescens and so on.

Second, we should choose the flower species with strong cold resistance. Although some flowers are very suitable for hydroponic culture, they need a higher temperature to survive the winter, so it is difficult to survive the winter safely in ordinary families and is vulnerable to frost damage. The flowers with strong cold resistance and a little cold protection can survive the winter, such as tortoise back bamboo, purple leaf duck rubbing grass, aloe, hanging orchid, parasol grass, pocket coconut, brown bamboo and so on.

Third, flowers that have adapted to hydroponic conditions should be selected. After some florists get the soil out of the soil, they wash the soil from their roots and supply the flower market immediately. Although such flowers seem to grow normally, they have to go through a process of adaptation before they can grow normally in a hydroponic environment, so they must be carefully identified when they are purchased. Some white aquatic roots grow at the root or stem base of flowers that have adapted to hydroponic conditions.

Fourth, choose plants that are robust and free from diseases and insect pests. The plants with tall and straight branches and leaves and full and glossy leaves are helpful to reflect the appreciation effect of flowers.

The advantages of hydroponics

1. Daily management is simple.

The daily management of hydroponic flowers is very simple, except for changing the nutrient solution every 10 days during the peak period of plant growth in spring and summer, and every 15-20 days in autumn and winter, it does not need extra care. You only need to spray water on the leaf surface in the dry season or in the air-conditioned environment; wipe it with a clean cloth or paper towel when there is dust on the leaf surface. It saves the trouble of fertilizing, changing soil and watering water every day, and is very suitable for the fast-paced life style of people in modern society.

2. Clean and fashionable

Because hydroponic flowers are completely separated from the soil cultivation environment and grow directly in a relatively aseptic or bacteria-free nutrient solution environment, they will not pollute our living environment like soil-grown flowers because of parasitic pests and germs in the soil. make our homes safer, cleaner and more at ease. And because we are separated from the soil, we can use more and more beautiful vases, utensils, and materials to grow. We can appreciate not only flowers and leaves, but also the process of root growth and their beauty, which we do not often see. Very neat and fashionable.

3. There are many kinds of application, and the technology is easy to master and operate.

As a result of conquering the adaptation technology of plant roots from native environment to aquatic environment, "Water Flower King" does not need to grow aquatic roots through planting baskets, nor does it need early computer and electric field mutagenesis, but only needs to do very simple technical treatment. Soil roots can be quickly transformed into aquatic roots, and anyone can grow exuberant and luxuriant hydroponic flowers, which greatly shortens the production cycle. It saves the production cost, makes the product have more profit space, and increases the competitiveness of the product in the market. At the same time, because of the low production cost, more and more people can enjoy the lifestyle brought by new technology and rapidly expand their market share. Because the planting basket is not used, hydroponic flowers become more beautiful and refined. Because Rain Water will change the concentration and PH value of the nutrient solution, hydroponic flowers are not suitable for planting in the open air, so some light-loving plants are more difficult to carry out indoor hydroponic culture at home, but the common shade / semi-shade flowers are basically able to carry out successful hydroponic cultivation, and there are nearly 400 experimental varieties at present. If you have a sunlight or artificial greenhouse, then in theory, any plant can be hydroponically cultured, but with different degrees of difficulty.

4. green and environmentally friendly, flower fish can be raised together.

The "Water Flower King" nutrient solution does not contain toxic ingredients, so it can be raised together for a long time without any side effects that are not conducive to flowers or fish. the fish in our store still grow well after long-term rearing. And some guests add nutrient solution to the aquarium to fertilize the aquatic plants, the effect is also very good, practice has proved that it is safe and reliable. At the same time, because of the special ingredients, it is not easy to breed mosquitoes in the nutrient solution, and if you pour the discarded nutrient solution into your soil to plant potted flowers when you change water, there will be a more unexpected surprise. Facts have proved that "Water Flower King" nutrient solution is a real green and environmentally friendly nutrient solution, and the effect is very obvious.

Selection of hydroponic Flower species

The growth and development of flowers need appropriate conditions such as water, oxygen, nutrients, light, temperature and so on. Water as a hydroponic medium contains a certain amount of oxygen. As long as the light and temperature are appropriate, timely supply of nutrients needed for plant growth, flowers can grow normally in water.

Due to the relationship between ecological habits and organizational structure of flowers, different flowers have different requirements for oxygen content in water. Some flowers have aerated tissue in the body, and the oxygen produced by these plants during photosynthesis can be sent to the root part of the plant through the aerated tissue for breathing; some flowers have aerial roots in the stem nodes, which means that aerial roots can absorb the oxygen plants need from the air; although some flowers do not have simultaneous tissue and aerial roots that absorb oxygen, they are well adapted to hydroponic conditions. However, the oxygen content in the water of some flowers can not meet the needs of their normal growth and development, so this kind of flowers is not suitable for hydroponics. Therefore, in order to make hydroponics successful, we must choose flower species that can adapt to hydroponics conditions, and do not plant them blindly, so as not to lead to the failure of hydroponics.

Flower species adapted to hydroponic culture

Araceae

Araceae flowers have great adaptability to horizontal conditions, when cultured with water, most of them can take root and grow rapidly in a short time, and quickly form a certain ornamental plant shape; after washing with soil, most of the roots can adapt to the hydroponic environment. Araceae flowers adapted to hydroponic culture are green pineapple, Guangdong evergreen, Daifen evergreen, silver emperor, golden queen, tufted spring feather, mini tortoise back bamboo, tortoise back bamboo, silver bract taro, emerald, Xi Lin taro, Qin leaf Xi Lin taro, green emperor Xi Lin taro, synthetic fruit taro, sea taro, crane flower, jadeite and so on.

Caryophyllaceae

Almost all the flowers of the family Commelina can adapt to hydroponic culture, such as purple leaf, purple back evergreen, light bamboo leaf, hanging bamboo plum and so on, which can take root and grow quickly when they are planted in water.

Liliaceae

The vast majority of lily flowers can adapt to hydroponic culture, such as aloe. Triangular aloe, dot pattern 12 volumes, hanging orchid, Zhu banana, dragon blood tree, horsetail iron, tiger skin orchid, tequila, Phnom Penh rich bamboo, sea onion, silver edge evergreen, silver edge step grass and so on.

Sedum family

Crassulaceae flowers are also more suitable for hydroponic conditions, such as: Lotus palm, hibiscus palm, silver wave brocade, gemstone flower, rooting and so on.

In addition, flowers that can adapt to hydroponics include peach leaf coral, parasol grass, colored leaf grass, purple goose velvet, blue pine, bamboo begonia, Begonia, emerald, gentleman orchid, aristolochia, variegated wood, silver chrysanthemum, fairy pen, leaf cactus, triangular bamboo, pineapple, Ji pineapple, golden millet orchid, rattan, keel, color cloud pavilion, flower vine periwinkle, red back cinnamon, Sihai wave, ivy, ivy, palm bamboo. Pocket coconuts, etc.

When selecting hydroponic flower species, in addition to considering the conditions of hydroponic culture, we should also pay attention to the following factors:

Although some flowers are well adapted to the conditions of hydroponic culture, the overwintering temperature is relatively high, for example, the overwintering temperature of some species of evergreen and variegated trees is more than 15c, and the overwintering temperature of green pineapple, taro, Phnom Penh rich bamboo and dragon blood trees is also above 10c. This is certainly not a problem for rooms that are heated in winter, but it is very difficult for most families to get these flowers safely through the cold winter. Although some flowers will not lead to the death of the whole plant after overwintering, due to the influence of low temperature and freezing injury, the leaves of the plants will become wilted, lose their due luster, the leaves turn yellow, the leaf tips or leaf edges become scorched, or new scorch spots appear on the leaves, and even cause a large number of defoliation or some branches and leaves to die, thus losing the value of appreciation. Therefore, when there are no more stable conditions for domestic mosquitoes, we must pay attention to the selection of flower species with strong cold resistance. The flowers suitable for hydroponic culture in ordinary families are:

Flowers with strong cold resistance

Such as evergreen, rattan, brown bamboo, tequila, peach leaf coral, gemstone flowers, sea onions, flowers and leaves along the steps, etc. can withstand the low temperature of about 0c.

Flowers with a certain degree of cold resistance

Such as tortoise back bamboo, purple leaf duckweed, light leaf bamboo, aloe, hanging orchid, silver wave brocade, parasol grass, purple velvet, silver chrysanthemum, golden millet orchid, Caiyun Pavilion, flowers and leaves vine periwinkle, ivy, pocket coconut and so on, you can survive the winter safely with a little protection when overwintering.

Of course, although some flowers, such as ruby taro, emerald taro, fruit taro, green apple, tiger tail orchid, and variable leaf wood, are safe and difficult to survive the winter, they are convenient to obtain materials, grow rapidly, and have high ornamental value, and can also be purchased and cultivated in the warm spring.

Yin tolerance problem

Due to the poor indoor lighting conditions, it is appropriate to choose flowers that prefer half-shade or tolerate half-shade. At the same time, even foliage plants that like half-shade or tolerate half-shade have different requirements for light intensity, such as variable-leaf wood, purple-leaf duckweed, hanging bamboo plum, etc., but white crane taro, hulk, Guangdong evergreen, silver emperor and so on all have a strong ability to tolerate shade. Due to the different lighting conditions of different rooms and rooms, the appropriate types of flowers should be selected according to the lighting conditions of the placement location, so as to ensure the normal growth of flowers and maintain good ornamental. When the light is insufficient, the branches and leaves of the plant are too long, the stem is thin, the internodes are longer, the leaves become smaller, abnormally small, lose green and lose their due luster, the leaves fade with colored spots, and even produce a large number of fallen leaves, thus seriously affecting the ornamental of flowers.

Water-raised orchid technology

Hanging orchid, the leaf color is fresh and green, the leaf shape is like orchid, fresh and elegant, it is a common family foliage flower that people like. In addition, it has the unique effect of purifying indoor air, which is one of the important reasons why people like to plant it indoors.

1. Container: container bottle can be single-layer or double-layer. Single-layer bottles are made of plastic bottles without bottom holes or ceramic bottles without bottom holes. In the double-layer bottle, the plastic screen is taken as the upper layer, and the lower bottle is a bottomless bottle. The hanging orchid is planted in the upper plastic screen to let the root of the hanging orchid droop in the bottle.

2. Take seedlings: remove the potted or ground-planted orchids from the pot or dig up from the ground, remove the soil from the roots, wash the roots with clean water, cut off the old and rotten roots, leave the fibrous roots, cut off some leaves (old leaves, leaves of diseases and insect pests), and leave strong leaves, generally leaving 6 to 10 leaves.

3. Pot up: the pot method of a single-layer bottle is to insert the treated hanging orchid into the bottle, fasten the bottle mouth with a sponge and insert a plastic straw for water transport. Let the orchid plant stand upright, fill the bottle with water and flower nutrient solution, and let the root of the orchid grow in water. In the double-layer bottle cultivation method, the plant of the orchid is planted on a plastic sieve, and the root passes through the small hole of the plastic sieve into the lower bottle, which is filled with pottery or stone rice (large grains) to make the orchid stand upright, and the lower bottle is filled with clear water and flower nutrition solution. After potting, put the orchid indoors or in a cool place for management.

4. Management:

① water: water and flower nutrient solution are added every 4 days for single-layer container cultivation, and the water is input from the straw until the water is full. Change the water of the double-layer bottle once a week, pour out the water when changing the water, wash the bottle clean, fill it with water and flower nutrient solution, and then put the plastic sieve on the bottle.

② fertilizer: adding water and changing water in the root and adding flower nutrient solution at the same time, topdressing outside the root is spraying branches and leaves with diluted flower nutrient solution every 3 days.

③ control of diseases and insect pests: if you find any diseases and insect pests, you can use universal powder and water to spray leaves.

④ to promote flowers: half a year after the flowering, do not spray water on the flowers, to prevent early falling flowers, flowers withered should be cut off from the branches to promote re-flowering.

The outstanding one in static hydroponics

There are more than 2500 species of Araceae belonging to 105 genera, which originated in tropical Asia and are produced in the waters or swamps of forest areas. after a long historical evolution, most of them have developed into terrestrial plants and few aquatic species. The common excellent ornamental plants (genera) in Araceae are: Candle, Dendrocalamus, Taro, unicorn, calla, evergreen, colorful taro, green velvet, bract taro, and so on. Although the above genera are terrestrial, they are closely related to aquatic vascular plants: some are wet species, some have aerial roots, some are prone to adventitious roots, and some are easy to develop ventilatory tissues under stress. Terrestrial plants are cultured in static water, and the root respiration is in a serious state of hypoxia. The prerequisite for its success is the correct selection of plant species, that is, it is closely related to aquatic plants. Araceae plants are closely related to aquatic plants, which are shown as follows: first, Araceae plants evolve and develop with aquatic genes as the center. According to the new Engler system, the most primitive genus in the Araceae is the genus Gladiolus, and the most evolved genus Gladiolus, both of which are aquatic plants. Acorus calamus is an aquatic or wet evergreen herb. it is the most primitive genus in the Araceae. It originated in the old tropics of the late Cretaceous (about 100 million years ago) and first appeared in the water environment. The genus Artemisia, which is the most evolved single genus in Araceae, is almost all over the freshwater waters of the old and new continents. It is a floating plant cultivated by nutrition, which is easy to migrate and spread and has a strong ability of proliferation. In addition, there are famous aquatic species such as Acorus calamus, taro and taro in Araceae. As an aquatic plant, the evolved genus Gladiolus is not a simple repetition of the original Gladiolus, but a dialectical "negative negation", a repetition on a higher basis. Although most species of Araceae grow on land, they all come from aquatic ancestors, which forms the "negation" of aquatic ancestors. In the end, it is transformed into a more advanced aquatic plant of the genus Magnolia, and this reply is once again "negative", that is, the dialectical law of "negative negation". It shows that the opposite poles of aquatic and terrestrial life have been unified in the dialectical development. This is the unique philosophical reason why Araceae plants are outstanding in static hydroponics. 2. Araceae belongs to the order Araceae, which has only two families, and the other family for the same purpose is Aquatic Pleuroidae, which is a floating or submerged herb. It is proved that Araceae and Pteropodidae share the same aquatic ancestors and have a very close relationship with each other. It can be seen that the plants of Araceae take aquatic genes as the center and evolve forward according to the approximate spiral curve. Third, the relationship of the order Araceae in the plant taxonomic system: the Hutchinson system believes that the order Liliformes evolved from the order Liliformes, while a few aquatic types of the order Liliformes have a parallel relationship with the marshes. The Tahta system believes that the order Araceae has a common ancestor with Palm order and Bana order (primitive lily), which can be traced back to Magnolia. Cronquist system believes that the order Araceae is closely related to the order Coleoptera and Palm, and has a common ancestor with the order Liliacea. From the above classification system, it can be inferred that the order Araceae is related to Liliformes and palms containing aquatic plants. To sum up, Araceae plants evolve forward with aquatic genetic genes as the center, have a common ancestor with aquatic planktonic families, and are related to lilies and palms containing aquatic species. Therefore, they contain aquatic genetic genes, which is the direct reason for making Araceae plants outstanding in static hydroponics.

Judgement and treatment of hydroponic rotten root

In the process of hydroponic culture, rotting roots are often caused by management and other reasons, such as too low temperature, excessive fertilization, diseases and so on. Rotting roots will make the water quality worse and affect the growth of plants. To judge whether the root is rotten, one is to smell the root with the nose, and if there is a bad smell, it proves that the root has rotted; the second is to smell the water, which means that the root system may also rot and deteriorate; and the third is to observe the appearance of the root system. If the root turns yellow and changes color, it means that the root system has been damaged. After the root system is rotten, gently pull the rhizosphere with your hand, and its epidermis is very easy to tear off, leaving only the lignified part.

After the emergence of rotten roots, to be cut off in time, generally rotten roots are gradually rotting upward from the tip, after pruning, until cut to the normal root system. After changing water, pay attention to observe that if rotten roots continue to appear, they should be dealt with in a timely manner.

Simple hydroponic facilities-- bottles and cans and cultivation management

The use of waste containers, such as beverage cans, jars, white polystyrene hard foam boxes (boxes), etc., with a little finishing, can become hydroponic carriers of different sizes and shapes, which can not only adjust measures to local conditions and make the best use of things, but also green the surrounding environment. It has the interest of returning to nature.

I. bottles and cans

1. Such as metal beverage cans, glass or plastic bottles, paper foil square beverage boxes, etc., are originally filled with liquid, as long as the original contents are washed and refreshed, they can be used as hydroponic carriers.

two。 Planting cup: according to the size of the mouth of the selected container, choose the plastic cold drink cup, which is exactly the size of the mouth 1 to 3, as the carrier of anchoring plants. As shown in figure 1, dig out the "well" hole at the bottom of the cup so that the root system can reach into the nutrient solution through the bottom of the cup, and the anchors of the plant will not leak out. The opening also has the function of breathability.

3. Plant anchoring: prepare a piece of non-woven cloth (non-woven cloth) for clothing padding about 8 × 12 cm, rinse off the soil gently and do not damage the root system. Wrap the root system with non-woven cloth, and then use porous plastic sponge (debris cut off from coat pads, sofas, seat cushions, etc.), or a small amount of rock wool and glass wool (used as thermal insulation materials, there are yellow, there are also yellow with white) and other coarsening, so that it can be stuffed into the plastic planting cup to anchor the plant. In fact, do not have the above-mentioned things on hand, the use of flower paste, after proper cutting can also be used as anchoring material. The non-woven rolls enclosing the roots, together with the exposed roots, are immersed in bottles and jars containing nutrient solution. It must be noted that the surface of the nutrient solution should have a space distance of not less than 1 cm from the bottom of the planting cup. This is the key to the success or failure of hydroponics. With the help of the osmosis of non-woven fabric, the nutrient solution continues to supply the root system with nutrition for about half a month, and the nutrient solution decreases gradually with the growth and transpiration of crops. When the liquid level drops to 1 top 4 of the container height, a new nutrient solution can be added. At this time, the distance between the liquid level and the bottom of the planting cup can be larger, about 3 centimeters.

4. Cultivation management: if you use a transparent glass container, you must cover the bottle with a shade to avoid direct sunlight to breed algae and compete with the culture for nutrition. In summer, in order to prevent a substantial rise in liquid temperature caused by sunlight exposure, it is best to have shading measures, or put in a place where the sun cannot be exposed directly.

2. Box class

1. Box: usually used as a shock-proof polystyrene white rigid foam box, or corrugated cartons, wooden cases with a certain strength can be used. It is generally about 35 × 25 × 15 cm and 60 × 40 × 16 cm. If there is a hole in the bottom of the box, it can be paved with wood or foam board. The box is lined with black agricultural film to prevent nutrient solution leakage. If it is confirmed that the box does not leak and does not penetrate light, the film can be avoided. If there is no black film, other films can also be used.

two。 Upper cover: the function of upper cover and fixing plate. Find a polystyrene foam board with the same area as the box and about 2.5 cm thick as the upper cover and fixed planting board. A certain number of planting holes with a diameter of about 6 cm are opened on the board. Like bottles and cans, as long as the selected plastic cold drink cup can be placed in it, it will reveal about 1 inch and 2 cups high. The number of planting holes depends on the size of the box. It is generally 6 to 16 acupoints. In addition, a small hole with a diameter of 2 cm is opened near the inside of the box near the side of the upper cover, which is used to peep the liquid level of the nutrient solution and to add the nutrient solution.

3. Planting cup: select materials and prepare the same bottles and cans.

4. Floating board: take a polystyrene foam board which is 2.5cm less than the net area of the box and 2.5cm thick as a floating board. There are regular holes with a diameter of 1cm to 2cm to increase the air content of the floating board and facilitate the root system to extend into the nutrient solution. The floating board is covered with a thin layer of rock wool (about 1 cm dry thickness), or glass wool of the same thickness, or 250g / m2 of non-woven cloth, which is used to absorb nutrient solution. When it is really impossible to get these things, medical sterilized skim gauze can also be used instead. The area of the cotton infiltration layer is about 6 cm more than that around the floating board, so that the excess part laid on the floating board can freely droop from around the floating board (like an apron) and soak into the nutrient solution to absorb the nutrient solution, so as to ensure that a wet layer with nutrient solution is formed on the floating board. The roots of plants can stretch freely on the floating board and have more direct contact with the air. Another part of the root system can still absorb nutrients through the four sides of the floating board or through the holes in the floating board into the nutrient solution. This method can make up for the unfavorable environment that the general hydrostatic culture can not circulate nutrient solution and oxygenation.

5. Cultivation management:

The main results are as follows: (1) pour the prepared nutrient solution into the cultivation box. At the beginning of planting, the liquid level should be slightly higher, and the floating board should touch the non-woven root roll protruding from the planting cup, so that the nutrient solution can be absorbed. The highest liquid level must have some space in the cultivation box. When the nutrient solution is reduced to 3-5 cm with the absorption and transpiration of the plant, the nutrient solution should be added until the liquid depth is about 10 cm.

(2) when the nutrients of the nutrient solution change greatly, or when there is precipitation, turbidity, stench and pathogen infection, the nutrient solution should be updated as appropriate until it is completely updated.

Requirements of hydroponic flowers for moist environment and good ventilation environment

The origin of foliage flowers is mostly in a warm and humid environment. Static hydroponics also need to create a relatively humid environment in order to make it grow well. The simple method is to spray on the leaves of flowers (in order to prevent the spray from soaking the furniture, you can move to the balcony or outdoor operation, and then move the flowers to the indoor display after spraying). It is best to use a fine hole sprinkler when spraying, so that the spray beads stick to the leaves and do not flow down. Stronger flower leaves with wax film, such as tortoise back bamboo, gentleman orchid, can be wiped with wet towels, which can not only increase the humidity of the leaves, but also remove dust from the leaves. For those larger, difficult to move flowers, you can use a shallow dish or basin to hold water next to the flowers, evaporation of water can also increase the humidity of the environment.

There should be a good ventilation environment. This is an important condition for the normal growth of flowers, static hydroponic flowers are installed in the room, if the doors and windows are closed, the air is turbid, it is disadvantageous to its growth. In particular, people go to work and leave home during the day, do not open doors and windows, and some even close curtains. In such a harsh environment, hydroponic flowers can not get the necessary light, even lack of fresh air, dissolved oxygen continues to decrease, and their growth will get worse and worse. The phenomenon of leaves yellowing and shedding, and thin and shrunken shoots. Where hydroponic flowers are placed, doors and windows should be opened regularly to form air convection, allowing fresh air from the outside to enter the room, which can increase the content of dissolved oxygen in the nutrient solution.

An air-conditioned room can of course reach the temperature needed for hydroponic flowers, but the dry air in the room will cause thin flower leaves with scorched edges and withered tips. Air-conditioned rooms are also short of fresh air, which reduces the content of dissolved oxygen. It should be ventilated timely, which is beneficial to the growth of hydroponic flowers and human health. There are places with large-scale hydroponic flower furnishings, it is more necessary to do this work well.

The light needed by hydroponic flowers

Static hydroponics choose more shade-resistant and shade-loving foliage flowers and a small number of flowers. The characteristic of this kind of flower is that it does not need strong direct light during the growing period, and some flower varieties grow well in a more shady environment. Generally placed in the indoor, living room, office, as long as there are doors and windows through the scattered light and indoor lighting, can fully meet its needs for lighting. If the light is too weak, the leaves of flowers can not carry out normal photosynthesis, can not accumulate enough nutrition, poor growth. Some colored leaf flowers, such as colored leaf grass, variable leaf wood, etc. in a weak light environment, will lose the color of the leaves and become dull, this kind of flowers can maintain the luster of leaf color only in the environment where the light is more sufficient and is not directed by strong light.

Plant growth has phototaxis, the orientation of flowers should be rotated regularly, this work can be combined with cleaning utensils and changing nutrient solution, and the flowers after root cleaning can be rotated 180 degrees relative to the original orientation, so that the flowers will not grow on one side, and the top tip will always be straight and straight upward.

How hydroponic Flowers survive the Winter safely

How to survive the winter of hydroponic flowers

In general, flowers dormant when they are below 5-8 degrees Celsius, and tissue necrosis occurs when they are below 0 degrees Celsius. Therefore, if the indoor temperature is above 5 degrees Celsius, hydroponic flowers can generally survive the winter safely; in winter in the south, the indoor temperature is generally not lower than 5 degrees Celsius, if the extremely low temperature weather occurs for a few days, it can be solved by lighting a 60-watt incandescent lamp above the flowers to solve the problem; while in the north, because there is mostly indoor heating, it can also meet the safety of hydroponic flowers to survive the winter.

Why do hydroponic flowers change water?

Because plants absorb water and inorganic salts from the nutrient solution, the nutrients in the nutrient solution will become less and less, and because of the respiration and metabolism of roots, there will be more and more harmful substances in the water. So hydroponic flowers should be replaced with a new nutrient solution after a period of growth. In fact, this and soil cultivation of flowers is the same reason, soil cultivation of flowers to fertilize and change the soil once a year is also the reason. Hydroponic flowers in the vigorous growth of spring and summer water change time interval is shorter, slow growth in autumn and winter can be longer.

Cyclamen hydroponics

Planting cyclamen in water has only begun to appear in Europe in the last year or two. Because this cultivation method makes cyclamen break away from the traditional flowerpot and matrix, it is clean and beautiful, and it can endow the blooming cyclamen plant with a variety of cultivation and application forms. As soon as it appears in the market, it has won the warm welcome of consumers. In fact, cyclamen is not difficult to grow in water. First of all, we should choose satisfactory cyclamen potted flowers and prepare containers for hydroponic cyclamen, so that when the preparation work is completed, we can begin to make hydroponic cyclamen. Hydroponic cyclamen should deduct the bought cyclamen potted flowers together with the substrate (flower soil) from the basin, put them under the faucet and wash the matrix clean with a gentle flow of water, or you can put the plant together with the matrix in a water basin filled with water. rinse the matrix in water, and then rinse it with tap water. Note that the action must be gentle in the whole process of removing the matrix to avoid damage to the roots of cyclamen. Washed cyclamen plants can be placed in a pre-prepared hydroponic container, plus water, beautiful hydroponic cyclamen is made.

It should be pointed out that there is no need to add any fertilizer to the water to cultivate cyclamen. The nutrients in the bulb roots of cyclamen can maintain the normal growth and flowering of cyclamen plants for 6 weeks. At the same time, the height of the water surface should be kept below the bulb. In general, according to the evaporation of water, water can be added to the container twice a week to maintain the height of the water surface.

In fact, in cyclamen hydroponics, cyclamen plant is only one of the factors. In order to make hydroponic cyclamen with distinctive characteristics and outstanding personality, it also depends on the selection of hydroponic utensils and the combination of cyclamen plants. It all depends on the producer's unique perspective and flexible creativity.

Water culture method of keeping ball orchid and root in water

The orchid has always been cultivated with soil. Through the experiment of exposed root hydroponics, it has the following characteristics: ① saving labor, ② sanitation, less ③ diseases and insect pests, simple ④ management, long flowering period of ⑤, and ⑥ appreciating leaves and flowers with considerable roots.

The method of water culture of dew root is:

(-) Seedling treatment: dig up the soil-grown orchids, wash them with clean water, cut off withered leaves and leaves of diseases and insect pests, and soak them in diluted flower nutrient solution for half a day.

(2) on the basin: take a glass bottle or vase (without bottom hole), put several beautiful river stones at the bottom of the bottle, move the treated orchid seedlings onto the river stone of the vase, unfold the roots, add clear water, add flower nutrient solution, and place them indoors or in a cool place.

(3) Management: first, spray leaves with clear water once a day, spray leaves with flower nutrient solution every three to four days after one or two days: change water on one side every 15 days, and add nutrient solution after changing water; third, one month after the pot, the head of orchid is injected with flower nutrient solution, half a milliliter at a time, and then once a month to promote growth, flowering and prolong flowering.

(4) it can blossom in about two to three months after potting. Flowers withered after pruning, change water, add nutrient injection, can blossom again.

There is a difference between hydroponic culture and hydroponic cultivation of flowers.

In recent years, some hydroponic and hydroponic flowers are favored by people because of their freshness and environmental protection, elegant style, easy maintenance and easy combination. On the face of it, hydroponic and hydroponic flowers are cultivated in the same form, that is, liquid conservation, so many people confuse the two. In fact, they are obviously different.

Flowers used for water culture generally have inflated bulbs, which are rich in nutrients, and their growth and flowering mainly rely on their own stored nutrients. During cultivation, it is only necessary to soak the roots in clean water and fix them without supplying nutrients. The main flowers suitable for water cultivation are daffodils, tulips, hyacinth, rich bamboo and so on. In order to make hydroponic flowers grow luxuriantly and blossom brightly, the key is to select fully developed bulbs to provide nutrients for their growth process; the second is to change water frequently and change water every 2-3 days (rich bamboo every 7-10 days) to maintain sufficient oxygen content in water and improve root activity; third, to maintain sufficient sunshine to make it grow healthily.

Hydroponic flower culture is to fix the plant root on the cover or floating board of the flowerpot and soak the root system in water, which must be equipped with reasonable inorganic nutrition, so flower hydroponics is also called nutrient solution culture. The habits and internal structure of flowers suitable for hydroponic culture are suitable for normal growth in water. At present, the main varieties cultivated are orchid, orchid, crab claw orchid, Brazilian wood, evergreen, clump taro, tortoise back bamboo, gemstone flower, hanging bamboo plum, rooting and other plants.

Northeast University of China has adopted bioengineering mutagenesis technology and has developed nine series of more than 500 species of hydroponic flowers after 8 years of efforts, including both herbaceous flowers and woody flowers, cacti and succulent plants. It also includes flowering flowers such as orchid and Phalaenopsis. With the progress of technology, some high-grade flowers introduced from abroad in recent years, such as pineapple, Anthurium andraeanum, Zhu Dinghong, etc., have also successfully realized hydroponic culture. There are also some flowers with Chinese characteristics, such as tiger tongue orchid, etc., have also been domesticated by hydroponics.

The root characteristics of hydroponic flower plants have changed, root hairs have degenerated, and most of them are vertical straight roots, unlike hydroponic plants whose roots and root hairs are reticulated. After aquatic mutagenesis, the aquatic root gene of plants has been expressed, so the leaves of real aquatic flowers will increase and thicken, and the leaves and branches will be more fresh and tender than those growing in the soil.

The key to hydroponic flower culture is to prepare a good nutrient solution. Do not use metal containers or containers containing grease, acid and alkali in the preparation of nutrient solution. When using tap water to prepare nutrient solution, a small amount of humic acid compounds should be added to treat chlorides and sulfides in the water. Hydroponic flowers are added or changed once a week, and the pH value should be controlled between 5.5 and 6.5. The nutrient solution can be used as fertilizer for other crops.

Brief introduction of Flower hydroponic Culture Technology

Hydroponic culture of flowers is a common kind of soilless cultivation, there are many methods, several commonly used are briefly described as follows.

The deep liquid flow technique is characterized by the fact that the root system of the plant is wholly or partially immersed in the nutrient solution; the nutrient solution is mobile; the nutrient solution is mixed with air to dissolve oxygen.

Nutrient film (NFT) technology is developed on the basis of plastic bag technology. The plant can be cultivated by putting an appropriate amount of nutrient solution into the plastic bag, and on this basis, the plant can be further improved: the plastic bag is changed into a plastic film and laid on a grid of a certain shape; the nutrient solution is a thin layer 0.3 to 1.0 cm thick; part of the root system of the plant is immersed in the nutrient solution and part of it is exposed to moisture; the nutrient solution flows; the plastic film wraps the plant in white and black, forming a dark space inside.

The advantages are as follows: the oxygen demand of root respiration is well solved; the structure is simple and portable, the cost is low; the plant grows fast, is easy to manage, and is suitable for large-scale production.

In the technology of aerosol culture, the nutrient solution is sprayed around the plant roots after atomization, the fog condenses on the surface of the roots, and water is absorbed by the roots. The root is continuous or discontinuous in the environment of nutrient droplet saturation, which well solves the problem of water, nutrient and oxygen supply, and the plant production is fast. Fog culture can also be used in cutting seedlings.

The water solution of glass bottle can be coated with black plastic film around the bottle, or covered with black paint, or pasted with a layer of black paper, so that the bottle is opaque. Shading is beneficial to root growth and avoid algae growth. In summer, a layer of white paper should be placed on the outside of the black bottle to cool down. Tear off the white paper in winter, use foam board to do bottle cap, open a hole in the middle, clip the plant, cover the bottle cap, the top of the cap should also be black. Fill the bottle with nutrient solution, not too full, and leave pores for plants to breathe oxygen. If the water is inserted to promote the root, it is not necessary to use the nutrient solution, as long as the water can be injected, and then change the nutrient solution after the root grows. Specific operation process:

The seedlings can change the nutrient solution once a week according to the situation. Adult flowers are changed once a week in the summer peak growing season and once in 1 to 2 weeks in the non-growing season.

Take a breath and open the bottle cap for a while every morning and evening, leaving the roots completely exposed to the air. After a period of adaptation, there can be no ventilation for more than one month.

Rehydration flowers grow vigorously in summer and consume a lot of water, so you should always replenish water in the bottle to prevent the nutrient solution from drying up.

The preparation of hydroponic nutrient solution can be made with fertilizer tablets sold on the market or chemical fertilizers. If there are conditions, you can prepare it by yourself, and the formula is as follows:

Formula 1: (PH value 6mur6.5)

Potassium dihydrogen phosphate 0.44g / L; potassium sulfate 0.14g / L; calcium nitrate 0.59g / L; ammonium nitrate 0.19g / L; magnesium sulfate 0.53g / L; trace elements 2ml; Fe-EDTA2 ml.

Formula 2: (PH value 6Mui 65)

Calcium nitrate 1.64g / L; magnesium sulfate 0.98g / L; potassium nitrate 1.01g / L; trace elements 2ml; potassium dihydrogen phosphate 0.27g / L; Fe-EDTA2 ml.

Preparation method of trace element solution:

Boric acid 2.86g, zinc oxide 0.11g, manganese chloride 181g, copper dichloride 0.05g, sodium molybdate 0.025 g. The above drugs are dissolved in 800ml of water and then dissolved to 1000 ml.

Multi-method hydroponic culture of flowers

① water interpolation is the simplest and most successful method. Cut off a part of the stem and branch from the selected flower mother plant, insert it into the water, take root and sprout in a suitable environment and grow into a new plant. When cutting branches, they should be cut at 3-5 mm below the node, and the cross section should be flat and there should be no longitudinal cracks. When cutting branches with aerial roots, the aerial roots should be protected and inserted into the water. Green pineapple, rich bamboo and so on are suitable for hydroponic culture.

② root washing method: select flowers with ornamental value, strong growth, soil cultivation (or other media) formed flowers, remove soil, wash roots and change to hydroponic culture, it is best to use flowing water when washing roots. The washed flowers are planted in prepared utensils and injected with tap water that does not pass through the root system. Initially change the water once a day, wash the roots and utensils at the same time, and reduce the number of water changes after a week. Waiting for the cultivated flowers to grow new roots in the water shows that they have adapted to the hydroponic environment and can change the water every 7-10 days or even longer.

③ stripping method of tillering buds: suitable for flowers with strong tillering ability, such as orchid, pineapple and so on. The method is simple and the survival rate is high. Select the larger tiller bud, remove the connection between the upper soil and the mother plant, peel the tiller bud off the mother plant (protect the root of the tiller bud) with hand or sharp blade, wash the soil attached to the root, and cultivate it by hydroponic culture.

④ picking stem small plant method: some flowers grow in the growth process, there are one or more small plants on the walking stem, most of them have a small number of fully developed roots, such as Cymbidium and pineapple have this characteristic, take advantage of this characteristic of flowers, pick the shaped plantlets hydroponic culture, very simple.

Hydroponic flowers should choose tortoise back bamboo, gentleman orchid, green apple, iron orchid, Guangdong evergreen, purple back evergreen, rich bamboo, hanging orchid and bulb flower tulips, lilies, hyacinth, Zhu Dinghong, calamus orchid and so on.

Strategies for the difficulties of hydroponic Flower cultivation in Summer

First, where are the difficulties of hydroponic flowers in summer?

Answer: hydroponic flowers are used to cultivate ornamental plants in a non-solid medium (water or adding an appropriate amount of plant nutrient solution to water). At present, most of the hydroponic flowers in the family are cultivated in still water, and the dissolved oxygen is lower than 1mg/l, and the flowers barely maintain life in anoxic utensils. With the increase of temperature in summer, the vigorous physiological metabolism of plants, the multiplication of microorganisms, the sharp increase of oxygen consumption, the continuous decrease of dissolved oxygen and the deterioration of water quality, many unfavorable factors are formed for the growth of hydroponic flowers, which may cause root rot and wilting of branches and leaves. even kill the whole flower. Therefore, in summer, in addition to preventing heat and high temperature, increasing the oxygen content of nutrient solution is the key to ensure the safety of hydroponic flowers in summer.

Water with silver grass

Second, how to improve the content of dissolved oxygen in nutrient solution?

Answer: there are many ways to increase dissolved oxygen, which can be summarized as chemical method and physical method. The following are several methods that are easy to operate and effective.

1. Increase the number of times to change nutrient solution

Changing the nutrient solution is the easiest way to increase dissolved oxygen. According to the measurement, the dissolved oxygen content of the fresh nutrient solution is 70%-90% higher than that of the original solution, which can improve the physiological hypoxia of flowers in time.

Flowers that have taken root in water are suitable to change the nutrient solution no more than 7 days in 3-5 days. When changing the nutrient solution, pay attention to the temperature difference between the new solution and the original solution should not be too large, too large temperature difference may cause flower root physiological disorder.

When changing the liquid, we should patiently rinse the roots with clean water, remove withered and rotten roots, and truncate the aged roots to promote the growth of new roots.

If the nutrient solution suddenly becomes turbid, or there are mosquito eggs or mosquito breeding, you should immediately replace the new nutrient solution.

two。 Vibrating oxygenation

For hydroponic flowers with smaller utensils, as long as the root system is clear and the nutrient solution is clear, the vibration method can be used to increase oxygen by fixing the flowers with one hand and gently shaking the utensils with the other hand. After shaking, the dissolved oxygen content of the nutrient solution can be increased by more than 30%.

Hydroponic flowers with turbid nutrient solution and stunted root system should not adopt the method of vibrating oxygen enrichment, and the nutrient solution must be changed thoroughly.

3. Using automatic water exchanger for hydroponic flower culture

The content of dissolved oxygen in flowing water can reach 8~12mg/l, but only 1mg/l in still water. The automatic water changer for hydroponic flowers is designed and made according to this principle. The whole frame is a flower cultivation vessel, which is equipped with a miniature circulating pump. The outlet end of the pump is connected to the set pipe, and the nutrient solution circulates in the pipe when working, increasing the dissolved oxygen for the absorption of flowers. After the pump stops working, the root system maintains a certain liquid level. There is no doubt that the cultivation with automatic water changer is to soak hydroponic flowers in the "oxygen bar", and its growth is obviously better than that of static hydroponics.

The cleaning and changing liquid of hydroponic flower automatic water changer is generally once every 30 to 35 days.

4. Inflate a vessel

If there is a tank of ornamental fish next to the aquarium while cultivating flowers, you can use the spare outlet pipe of the fish tank air supply pump to connect the rubber pipe and put the sand head into the static hydroponic flower utensils to inflate (the air flow is not too large, so as not to splash the nutrient solution), and the effect is also good with the flow of air to increase oxygen.

Third, where should hydroponic flowers be placed in summer?

Answer: most of the flowers selected in hydroponic culture are shade-resistant foliage flowers and flowers and leaves and ornamental flowers. Such as taro, white jade evergreen, silver taro, candle, pineapple and so on. These flowers like to be warm and humid, slightly resistant to shade, and avoid high temperature and dry heat. "hydroponic culture" only changes the cultivation form, but it is impossible to change its growth habits and the required environmental factors. It is best to put hydroponic flowers in bright light, slightly higher humidity, cooler and well-ventilated environment in summer. Avoid direct sunlight, but can not be too shaded, so as not to hinder the photosynthesis of flowers, weaken growth, elongate stem nodes and thin leaves. Resulting in colored blocks, colored flower leaves lose their luster.

Can hydroponic flowers be placed in an air-conditioned room?

A: yes. However, hydroponic flowers should not be placed in the air outlet of the air conditioner, the wind speed is too fast will hurt the branches and leaves, light leaves curl, heavy scorched edge withered. It is also considered that the temperature requirement of flowers during the day is higher than that at night. If the air conditioner is turned off at night, the ambient temperature is higher than the daytime temperature when the air conditioner is turned on, which is disadvantageous to the growth of hydroponic flowers.

When turning on the air conditioner, put a basin of water next to the flowers or spray to the leaves to increase the environmental humidity. The flowers are placed far away from the air outlet of the air conditioner, and there is no problem that the temperature difference between day and night is small.

Fifth, what about the rotten roots of hydroponic flowers?

A: as the air temperature continues to rise, the water temperature will also rise, microbial culture will accelerate, dissolved oxygen will decrease, and the water quality will deteriorate. Improper addition of nutrient solution and too high dissolved concentration may lead to root rot of hydroponic flowers, especially Zhu banana of Liliaceae, horsetail iron (fine leaf millennium wood) and five-colored millennium wood.

Flowers with rotten roots can regain their growth by using the following methods:

① removes all the rotting roots, and the infected part of the stem should be cut off with a sharp knife.

②-trimmed flowers were immersed in 0.5% potassium permanganate solution for 10 minutes and 20 minutes to sterilize.

③ takes out the soaked flowers and rinses them in running water.

The flowers washed by ④ are put into the original utensils and cultivated in clean water (the utensils should be washed).

⑤ every two days to change the water, only change the water without nutrient solution. The water quality is clear, which can reduce the number of water changes. New roots can sprout after 10-15 days.

The newly sprouted roots of ⑥ were still cultivated in clear water, when the temperature was stable at 18-25 ℃, and cultivated in nutrient solution.

Sixth, how to breed algae in nutrient solution?

Answer: algae in nutrient solution is a common phenomenon in the process of hydroponic flower cultivation. Especially in summer, high temperature, good transparency of utensils, bright environment, or changing nutrient solution for too long, will lead to a large number of algae breeding. Algae and flowers take oxygen, and secretions pollute the solution, resulting in a decline in the quality of nutrient solution. The algae attached to the flower roots hinder the respiration of the roots and interfere with the normal physiological activities of the flowers.

Once the nutrient solution breeds algae, decisively pour out the contaminated solution, thoroughly wash the utensils, brush off the algae attached to the roots, and replace the new nutrient solution.

At present, Chinese scientists are studying a kind of "algae-eating insect", which can filter and feed on algae, which is called the natural "nemesis" of algae damage. Once the experiment is successful and popularized, a small amount of "algae-eating insect" can be put into the hydroponic flower nutrient solution to eliminate the breeding of algae.

The reproduction of algae depends on good light. Use baffles or old newspapers to cover hydroponic flower utensils to avoid direct light, and the chances of algae breeding will be relatively reduced.

What kind of fertilizer is used for hydroponic flowers? How to fertilize in summer?

Answer: hydroponic flower is a special cultivation form, which belongs to a cultivation method of soilless cultivation. The root system of flowers is anchored in water (or special plant nutrient solution), also known as nutrient solution cultivation.

Hydroponic flowers should be cultivated with matching plant nutrient solution. However, different flowers need different nutrient elements at different growth stages. if five, six or even more than a dozen bottles of hydroponic flowers are cultivated at the same time, and the varieties are different, it is not realistic to buy a matching bottle of plant nutrient solution for each kind of flower. For simplicity, you can choose to use a universal plant nutrient solution.

The general-purpose plant nutrient solution generally contains all the nutrient elements (including a large number of elements and trace elements) necessary for flower growth, the proportion of various elements is balanced, and the inorganic salt is in an ionic state, which has a wide range of application. it is suitable for the nutrient needs of different flower varieties in the growth stage, and the non-toxic, harmless, pH value and ion concentration are conducive to nutrition absorption.

There are many kinds of plant nutrient solution sold in the market, the good and the bad are intermingled. It is best to go to the hydroponic flower store to buy reputable products from manufacturers.

There are different opinions on whether to cultivate with nutrient solution or only with clear water in summer. according to the author's experience, the flowers with high temperature tolerance and strong growth are cultivated with nutrient solution, and the flowers with slender roots and semi-dormant or dormant temperature at about 30 ℃ are cultivated only with clear water. Such as silver taro, green pineapple, mini tortoise back bamboo, ruby, Xi Lin taro, etc., cultivated with nutrient solution is suitable to maintain the growth advantage and enhance the ornamental taste. Colorful leaf grass, bamboo crabapple, pineapple and other flowers, a bottle of water can safely spend the summer.

The allocation of nutrient solution should be in strict accordance with the proportion indicated in the instructions, and the concentration should not be increased at will. Because the root tissue structure of flowers germinated in hydroponics has changed, which is looser and larger than that of soil cultivation. The cell wall becomes thin and absorbs water, nutrients and oxygen directly from the nutrient solution. It is extremely sensitive to the concentration of the nutrient solution, and too high concentration is harmful to flowers. As long as the concentration of a large number of elements is not lower than the level of 1 liter of micro-friction, lower concentration is beneficial to the growth of flowers.

It is appropriate to change the nutrient solution every 5 days in summer.

Can you change soil-grown flowers into hydroponic flowers in summer?

Answer: soil-cultivated flowers are hydroponic flowers, which is the most suitable in spring and autumn, when the temperature is about 15-25 ℃, which is suitable for flower growth and easy to adapt to the changed cultivation environment. The following factors should be considered in order to change the cultivation form of flowers in summer: ① selects the quality that is closely related to wet flowers. The flowers with normal growth and sound development are still growing normally when the temperature of ② is about 30 ℃. The experiment shows that the survival rate of Amorphophallus, mini-tortoise-backed bamboo, ruby Amorphophallus, Hulk, green pineapple and some pineapple flowers is higher in summer from soil cultivation to hydroponic culture, they adapt to hydroponic environment quickly, and their roots rarely rot. After 15-20 days cultivation, not only the lateral roots of the old roots, but also the end of the rhizome can germinate hydroponic roots.

When changing from soil cultivation to hydroponic culture, the soil in the rhizosphere of flowers should be cleaned up. Rinse repeatedly to protect the root system from damage or damage. Take containers with large capacity for cultivation, change water once a day, five days later, change water once every 2-3 days, water roots grow to 5 cm long, and cultivated with low concentration plant nutrient solution.

Hydroponic Culture of Phyllostachys pubescens

Liliaceae, also known as longevity bamboo, is native to western Brazil and Africa.

Features

Evergreen shrubs. Plant shape slender and erect, unbranched. Leaves long lanceolate, dark green, petiole sheathlike. Common are Phnom Penh rich bamboo, leaves with yellow vertical stripes. Silver edge rich bamboo, also known as edge bamboo banana, the plant is small, the leaf edge is inlaid with silver and white vertical stripes.

Habit

Like high temperature and humidity, the overwintering temperature should be kept above 10 degrees. Avoid direct sunlight in summer, otherwise it will burn the leaves.

Key points of water training

1: when the air is too dry, the leaves will be scorched. During the growing period, water should be often sprayed on the leaves.

◆ 8. What is planting basket hydroponics? Answer: planting basket hydroponic culture is a kind of hydroponic cultivation method based on the hydrotaxis principle of plant roots. The principle of hydrotaxis is that the root tip of a plant always grows in the direction of sufficient water, which is shown in that when the topsoil of a plant is short of water, in order to protect itself, its root tip will grow into a deeper soil. In order to absorb the water needed for plant growth and development and adapt to natural changes, the root growth has a very obvious direction: plants growing in swamps or water will not lack water, so the root growth is more chaotic. There is no obvious direction. So if you put a potted plant on the mouth of a wide-mouth glass bottle filled with water, the bottom does not need to be in direct contact with water, and the interval is about 1cm. The bonsai is not watered and only sprays a small amount of water. After about a week or so, the root at the bottom of the bonsai will grow into the water. At this time, you do not need to add water to make its roots grow longer and longer as the water level drops. If you use some fast-growing plants to do experiments, the effect will be more obvious. Similarly, you take off the bonsai that is already full of roots in the water and fix the plant with a planting basket, and decorate it with stones or decorations to become a pot of hydroponic flowers. The difference is that because there is no soil, you have to change the water into a nutrient solution. It's as simple as that.

◆ 9. Why do hydroponic flowers change water? Answer: because plants absorb water and inorganic salts from the nutrient solution, the nutrients in the nutrient solution will become less and less, and because of root respiration and metabolism, there will be more and more harmful substances in the water. So hydroponic flowers should be replaced with a new nutrient solution after a period of growth. In fact, this and soil cultivation of flowers is the same reason, soil cultivation of flowers to fertilize and change the soil once a year is also the reason. Hydroponic flowers in the vigorous growth of spring and summer water change time interval is shorter, slow growth in autumn and winter can be longer.

◆ 10. Why do hydroponic flowers sometimes become weaker and weaker or grow less exuberant? Answer: it is possible that the time interval of changing liquid is too long, the proportion of nutrient solution is not right (too light or too thick) or the light is too weak. If you rule out these factors, it depends on whether the high water level of nutrient solution makes the plant roots unable to breathe normally and cause hypoxia; if these are not, then we suggest that you had better consult the franchise store of Shuihua King.

The Disclosure of hydroponic Flower Market-- distinguishing true and false hydroponic flowers

At present, many companies have joined hydroponic flower shops, and there is an uproar all over the country, especially a company franchise store in Beijing will spread all over the country. As a researcher, I did not want to express my point of view. however, in order to maintain the healthy development of hydroponic flowers in our country, I have to complain about everything. Because the scam will not only damage the interests of consumers, but also cast a shadow on the hydroponic industry. at present, it is the low temperature season, and the respiration of plants is weak. After washing their roots, plants can be soaked in water for a period of time. Drowning-tolerant plants, such as Araceae, can be raised in water for 1-2 months, but as soon as the weather becomes hot and the physiological respiration of plants is strong, there will be hypoxia and rotting roots immediately. It is only one of the epiphyllum to buy dozens or hundreds of hydroponic works, which not only harms the interests of consumers, but also greatly affects the development of hydroponic industry. Now it reveals the "deception" from a scientific point of view.

1. The plants sold in the franchise store are basically Araceae plants. In winter, the growth rate of these plants slows down and their respiration becomes weaker. In addition, Araceae plants have a close relationship with aquatic plants and have strong drowning tolerance. Directly soaked in water after root washing, there is no uncomfortable reaction on the plant for a while, but it is impossible for it to thrive in water. It can only maintain the balance of water metabolism. The absorption of nutrients and respiratory function are seriously hindered, as soon as the weather becomes hot, the roots will be anoxic, stink and rot. Other terrestrial plants cannot achieve this method at all, so this is the main reason why they can only engage in Araceae plants to "deceive" at present. Their so-called mutagenic solution. I think it's better and more practical to call it "decoy". It is impossible for plants to change their tissue structure in a few minutes.

2. The high franchise fee charged by franchise sales is itself a kind of commercial hype, and if the goods are genuine, and if the technology is unique, it can also be said to be able to dominate the market truly has the significance of joining, and now this kind of joining can be said to be a fraud of money. one of its technologies has no scientific and technological content, that is, washing its roots and soaking in water, even fools can be concocted at a glance, and falsely, some training fees amount to 18800 yuan. Second, after decades of development, hydroponic technology itself is no longer a unique technology of a certain company, and it is impossible to monopolize the market by joining. Other hydroponic flower shops can also operate, and the funds are better and the technology is better than that of franchisees. Turning off the franchise fee is tantamount to being wasted. The real hydroponic flowers are not suitable for long-distance transport. in fact, what they are selling now are all the products after washing the roots of soil-grown seedlings, so it may be more accurate to say that pure-root flowers.

3. Hint: Araceae plants can be soaked in water for a period of time after root washing in late autumn, winter and early spring. We might as well give it a try. There is no need for decoy solution at all.

I have studied hydroponics for many years, and foreign countries have also investigated several countries with more developed hydroponics technology. It can be said that there are a large number of fraudsters in this kind of hydroponics market in China. But in the end, these joining scams will be cleared out by history and science. Remind everyone to polish your eyes and not to be induced by the decoy.

How to distinguish between true and false hydroponic flowers

True and false hydroponic flowers are actually the difference between induced flowers and non-induced flowers. at present, many hydroponic flower operators do not understand hydroponic flowers from a scientific point of view, but only from the perspective of commercial hype and personal profits. sell some conventional soil plants as hydroponic plants to fool consumers, resulting in a very bad social impact. After some citizens bought it at a high price, they died because of the physiological discomfort of the plants, which seriously hindered the healthy development of the hydroponic flower industry. In view of this problem, buyers can distinguish between true and false from the following aspects, in order to prevent being fooled.

A. look at the root morphology to distinguish between true and false: the induced hydroponic flowers usually exist in the form of whisker-shaped adventitious roots, unlike the roots in the soil, there are main roots, lateral roots, capillaries and root hairs, that is, they do not exist in the state of secondary roots of multi-stage branches. even if there are grades, they are based on a small number of bifurcated roots on the basis of fibrous adventitious roots. In addition, the number of primary adventitious roots of some original radicle plants increased significantly after induction, that is, the proportion of roots increased greatly, and the number of roots was large and developed, like a beard.

B, look at the color of the root system to distinguish between true and false: most of the aquatic roots of plants induced by aquatic plants have the characteristics of white, brittle and tender, even for some varieties that show natural roots, the color of aquatic roots is obviously lighter than that of terrestrial roots, such as yellowish white, light yellow, light brown and so on. This is related to the well-developed parenchyma of aquatic roots and no or less cork-like Lignification of cell wall thickening.

C, to distinguish between true and false from the integrity of roots: the aquatic-induced roots are re-grown and differentiated from the primary adventitious roots, and they are all completed in the water environment, with root integrity, while some soil-cultivated plants, although carefully washed, there are always slight damage or serious residual roots, which is difficult for soil-washed seedlings to achieve.

D, distinguish between true and false from the clarity of water: fake hydroponic works made by soil-washing seedlings, because the roots fail to form the adaptability of water, in an anaerobic environment, a large number of toxic intermediate metabolites will be discharged because of anaerobic respiration, so that the water in the container will quickly become mixed or deteriorated, and the turbid and opaque feeling shown by visual observation, that is, the water quality deteriorates or stinks, and the roots rot until the seedlings die.

E, the leaf angle is also true or false: especially for many herbaceous flowers which are very sensitive to ethylene, the leaf planting angle of many herbaceous flowers which are very sensitive to ethylene is obviously more flat than that of soil-washed seedlings, that is, the upper growth leads to the increase of the angle, even sagging.

Increase the content of dissolved oxygen in hydroponic nutrient solution

Except that the requirements of environmental factors such as light, temperature and humidity of hydroponic flowers are exactly the same as those of soil cultivation, the requirements of water, fertilizer and oxygen are very different in management-water: domestic hydroponic flowers should use soft water as water source. tap water in line with national standards can be used generally. Tap water after filtration, precipitation, sterilization treatment, clean and hygienic, pH below 7, can be safely used to cultivate hydroponic flowers. River water, lake water, pond water and well water are polluted to varying degrees, and the nutrients are serious, and all kinds of ions may vary greatly. if the content of one of these ions exceeds the standard, plants will be damaged or poisoned for a long time, so it is not suitable to be used as a water source for hydroponic flowers. Fertilizer: domestic hydroponic flowers must use low concentration special nutrient solution based on nitrate fertilizer. Hydroponic flower nutrient solution generally contains all the necessary nutrient elements for flower growth, the proportion of various elements is balanced, and the inorganic salt is in an ionic state, which is suitable for different flower varieties and their nutrient needs at different growth and development stages. And non-toxic, harmless, appropriate pH, conducive to nutrition absorption. It is not advisable to crush soil fertilizer and granular fertilizer for hydroponic flowers. Short-term use may have no obvious effect on flowers, if long-term application will inevitably hinder the normal physiological metabolism. What's more, organic fertilizer is not allowed to be used as the fertilizer source of hydroponic flowers. The diluted urine can be used for foliar spraying and should never be added to the nutrient solution. Oxygen: domestic hydroponic flowers, water (nutrient solution) is in a static state, dissolved oxygen is lower than / ppm/L, flowers barely maintain life in anoxic vessels, it is common for their roots to reverse growth and extend to the liquid surface in order to breathe more oxygen. Therefore, increasing the oxygen content of hydroponic nutrient solution is very necessary for the normal growth of flowers, especially in summer. There are several simple and easy ways to increase dissolved oxygen: 1. Increase the number of times to change the nutrient solution 2. Vibrate and increase oxygen, fix the flower plant in one hand, and gently shake the vessel in the other for more than 10 times. After shaking, the dissolved oxygen content of the nutrient solution can be increased by about 30%. 3. Add an appropriate amount of "solid oxygen" to the nutrient solution or 1% hydrogen peroxide (3% hydrogen peroxide). 4. Using miniature submersible pump or aeration pump (all standard products of aquarium) to carry out waterfall gas to the nutrient solution, plant roots can obtain sufficient oxygen in such an environment, the respiration is very exuberant, and promote the healthy growth of flowers.

Discern the false technology of hydroponic flowers at a glance

Hydroponic flowers, the combination of dynamic and static co-culture of flower and fish is its first intuitive impression. The earlier concept in China first sprouted at the beginning of the 21st century. (although some people planted some hydroponic plants such as Araceae and rich bamboos in water at the earliest, but this concept does not belong to the popular concept of "hydroponic flowers". Rising in 2003, many enterprises with market vision devoted themselves to the preliminary research and planning work in this industry, and in the case of the broadcast of "hydroponic Flowers" on CCTV 7 and 2 programs, hydroponic flowers flourished from 2004 to 2005. Hydroponic flowers have blossomed all over the country, providing technical learning and training, base production, and joining flower shops. Many false enterprises and individuals of hydroponic flower companies put on a show in the market under the stimulation of profits. on the one hand, it has contributed to the hype of the concept of hydroponic flower market in China. let a lot of citizens understand and understand this new concept and product. On the other hand, many investors and operators have become victims of this batch of market trends. As for 2006, those who have their own technological core and production capacity, and relatively strong economic strength and management ability, can still survive in such a chaotic market trend, there are very few who can survive. However, hydroponic flowers, a fashionable flower product, represents a new trend in the development of the flower industry. Driven by the economic interests of the market economy, there are still a small number of speculators in the market!

The author has been on this trip for three or four years and is more familiar with this industry. in view of the current mixed market of hydroponic flowers and plants, this article makes a systematic analysis and summary for the broad masses of people who love hydroponic flowers. and investors who are interested in joining the hydroponic flower industry to give a preliminary and comprehensive understanding for your reference:

Second, what is the real hydroponic flowers?

From a sensory point of view, the use of different types of glass vases, above the plant flowers (at present, the scope of hydroponic technology has been extended to other woody, vines, succulent plants, etc.), below to raise a few lovely small fish, that is, hydroponic flowers (plants)! But from the technical level, the real hydroponic flowers refer to the aquatic roots that change the physiological characteristics of their roots through a variety of biological, physical, computer and other technical means, and have plant ventilated tissue structure. and can adapt to water cultivation for a long time, can become a real hydroponic flower (plant)!

Third, how to identify real hydroponic flowers?

Judging from the sense: the present situation of hydroponic flower technology report 1, introduction: for a successful hydroponic plant, the root system of a successful hydroponic plant should be white, elegant and with more whiskers, which is very different from that of soil-cultivated plants. Soil-cultivated plant roots are dark black! (except for a few plant root color has a unique color, such as safflower after wood induction, from its root to its branches, the stem segments are all crimson! There are also some plants whose roots are nearly white after they are removed from the soil.

In addition, if the growth condition of the plant is not very robust and the leaves are drooping, it means that it has just been planted on the bottle and deceived the user to put it on! Even if it is induced, it cannot be sold as a commodity!

Technically, to judge:

Technically, to judge:

1) whether there is a professional technical level

If, as some businessmen say, all you need is the so-called "induction solution", "domestication solution" and "nutrient solution" to soak plants in water for a few days or hours, or some even say that hydroponic flowers can be cultivated in only tens of minutes or a few minutes, this can only be said by those who do not understand biotechnology, and those who understand biological principles all know that if there is a serious lack of oxygen in the water in the plant roots, the roots will soon breathe without oxygen and thus ferment. Rotten roots, so there are a lot of fermentation in the bottle, long mosquitoes, insects, turbid water is not clean and so on, the plant will soon die! Hydroponic flowers can be called hydroponic flowers only when they really induce the aquatic roots of plants and form hydroponic plants with aerated tissue and can adapt to the state of hypoxia in water. And the cultivation of aquatic roots can not be completed and realized by nutrient solution, it needs to integrate biological, physical, computer and other methods, after a long time of training, completely adapt to the water environment, in order to become a professional real hydroponic flowers!

2) do you have a strong level and ability of artistic combination?

Hydroponic flowers belong to medium-and high-grade consumption, and its ornamental value lies in the combination of artistic sense, each product lies in its artistic glass bottle container, beautiful plant shape, white and elegant root system, and the perfect combination of fish and water plants and other ornaments in the bottle! Is not a professional hydroponic flower works, in addition to the natural senses, a strong artistic combination can not be formed by the general beginner! From this technical level, we can tell at a glance whether manufacturers have such an aesthetic level!

3) whether there are facilities and fixed supply channels for the production of hydroponic flowers?

Whether there are facilities for the production of hydroponic flowers can also be seen whether businesses have the ability to produce hydroponic flowers, if there are neither fixed production facilities nor manufacturers with strength and brands as sources of supply, then such hydroponic flower providers are likely to be "hydroponic flowers" made by washing the roots of soil-grown plants!

To examine in terms of variety:

The hydroponic flower varieties that real professional hydroponic flower manufacturers can produce are not only those plants such as Araceae and crassulaceae, such as dripping Guanyin, Chunyu, Fugui bamboo, tortoise back bamboo, evergreen and other plants that are easy to raise in water. These plant varieties, themselves close to water, hydrophilic, the general method can be cultivated in water, professional producers should be all kinds of woody plants, all kinds of water-resistant plants. Such as iron tree, cactus, rich tree, flutong, and even such as yew, sweet-scented osmanthus, fruit trees can achieve hydroponic culture of plants! If the business can provide a single variety of plants, it must not belong to professional hydroponic flower manufacturers!

In terms of time:

Time is the final only criterion for testing hydroponic flowers. If they cannot adapt to hydroponic cultivation for a long time, they will die within a few days if they are only a flash in the pan. Many of these are hydroponic flowers that can be produced in a few hours after those speculators wash away their soil roots. In a few days, the flowers bloom and bloom. Therefore, for now, for those owners who cannot provide the shelf life of the goods, most of them are speculators, such as those who cannot provide the shelf life of the goods, it is recommended not to buy them, so as not to be fooled! Fourth, how to identify a real professional hydroponic flower manufacturer?

Driven by interests, many market speculators, in publicity, adopt various "formal" means of information transmission to fool the majority of consumers and investors, in order to make some of the real hydroponic flower technology, no base, no scale. Some without technical personnel are in scientific research institutes in national universities (such as Wuhan University, Beijing University of Science and Technology, Tsinghua University, Huazhong Agricultural University, China Agricultural University, Beijing Forestry University, etc.) (such as Chinese Academy of Agricultural Sciences, Chinese Academy of Sciences, Chinese Academy of Forestry Sciences, etc.) A scientific research center, etc.) several offices are rented in the institutions under the Ministry of Agriculture (such as the veteran cadre Bureau of the Ministry of Agriculture, a technology center of the Ministry of Agriculture) or in the office building The so-called high-tech bag companies that began to advertise to make money and the technology transfer "guerrilla" companies with one shot to another have no foothold. It also makes it malicious to transfer some immature so-called "hydroponic flower technology" at a low price to lose the deceptive market, but also for you to learn these real technologies.

The author solemnly reminds: no matter you see similar technology or similar advertisements in any place or any media in the country, you must keep your eyes open, how open-minded you are, how many restaurants you see, and how much you compare. You must carefully compare the unit size, technical strength, personnel quality, product quality and after-sales service. {{remember: you must take a look at their florist products, and then ask them to call the franchisee, and try to go to the franchisee to have a look. To determine the authenticity of the technology, you may not provide it to you in many places, so you should think twice before you act. This is the most direct and final judgment, except of course. Those "high-level" companies will also use "medical care", "school care", "room care" and "wine care" to ignore you at the level of Zhao Benshan, which makes it impossible for you to guard against! You must carefully check the authenticity of the technology, training capabilities, and relevant documents; you must not be deceived by these so-called high-tech companies, which will bring unnecessary losses to your economy and spirit. In addition to distinguishing whether hydroponic flowers are real or not from the product approach, in fact, we can only pay more attention to see through many speculators one by one. Here are some experiences on how to fertilize hydroponic flowers outside their roots.

Static hydroponic cultivation of flowers is a cultivation method under the condition of anoxic root system, which will cause some defects to the normal development of flowers. In order to improve the quality of flowers, foliar fertilization can be used to supplement nutrient elements. During the vegetative growth period of flowers, 0.2% potassium nitrate dilution can be used to spray foliar.

Should use fine hole spray pot, try not to make fertilizer liquid loss, the back of the leaf should also be sprayed, spray once a week, spray twice during the growing period, can make hydroponic flowers flourish. Flowers suitable for leaf viewing and flower appreciation at the same time, such as taro, begonia, bamboo begonia, calla, etc., can be sprayed on the leaves once a week with 0.15% potassium dihydrogen phosphate diluent during the budding period until the flowers bloom.

Control technology of chrysanthemum white rust

Chrysanthemums are loved by people because of their beautiful, bright and fragrant flowers. Growing flowers can cultivate people's sentiment, enrich cultural life, and improve physical and mental health. At the same time, some varieties of chrysanthemums can be eaten or used in medicine, which can be said to kill two birds with one stone. However, in the process of cultivation and cultivation of chrysanthemum, it is often attacked by a variety of diseases and insects, resulting in abnormal morphology, incomplete branches and leaves or withering, or even death of plants, thus reducing the ornamental value and medicinal value of flowers, resulting in greater economic losses. In order to ensure the normal growth and healthy development of chrysanthemum, to produce beautiful flowers, and to ensure the medicinal value of chrysanthemum, it is necessary to strengthen the prevention and control of diseases and insect pests.

Prevention and control should be based on the principle of prevention and comprehensive treatment. That is, on the one hand, according to the habits, local climate and geographical conditions of the chrysanthemum, we should select suitable varieties and grasp the occurrence period of white rust in time, at the beginning of or before causing obvious harm to the disease. according to the harm characteristics and epidemic law of white rust, different prevention and control methods were adopted, and measures should be taken according to local conditions at that time. Take effective protective measures: on the other hand, prevent the spread of diseases as far as possible, comprehensive management is not a simple arrangement and make up of various control methods, we should coordinate various methods, learn from each other and cooperate with each other. in order to form a relatively complete and organically integrated prevention and control system.

First, symptoms. First of all, there are very small discolored white spots on the back of the infected leaves, and then the bulge shows a gray-white pustule-like protuberance, the wax powder gradually becomes light brown, and the leaf front is a yellowish spot with slight depression, yellowish to yellowish green, and when the disease is serious, the whole leaf is covered with disease spots, resulting in the early death of the leaves.

Second, the pathogen. The pathogen of white rust is that the teliospores of Spiraea chrysanthemum are piled on the back of the leaves, raised, grayish white to light yellowish brown, 2-5 microns in diameter and long oval × microns in diameter. Yellowish brown, bicellular, apical round or pointed, stalk colorless or yellowish.

Third, the law of the disease: the pathogen overwintered with teliospores on the diseased and withered leaves of the diseased plants, and produced chlamydospores in the spring of the second year, which spread with the air flow and infected the leaves. The germination temperature of summer spores was 16-27 ℃, which was lower than 6 ℃ or higher than 31 ℃. The water film on the leaves is a necessary condition for spore germination. It is 10-25 ℃ in winter in Xishuangbanna, Yunnan, and there is almost no overwintering phenomenon of winter spores, that is, it is harmful to the germination of summer spores. In the cloudy days of open field cultivation, the weather of most Rain Water is serious, and the humidity in the greenhouse is too high, so it is easy to spread in time.

IV. Prevention and control methods

The main results are as follows: 1. Cultivate and prevent disease, remove the disease residue, choose fertile and deep soil, keep the upper part of the plant often dry, do not spray water from the upper part of the plant, strengthen the management in the greenhouse, and pay attention to ventilation. Transparent light to avoid close planting, control water and fertilizer, do not make the soil too moist.

2. Drug prevention and treatment. ⑴ transplanting seedlings to do a good job of soil disinfection or transplanting combined with fixed root water, irrigate 70% black tianqing 500 times liquid once. At the initial stage of ⑵, 15% triadimefon wettable powder can be sprayed with 1000 times liquid spray, 49% Jintian 9 # 600x liquid spray, or 20% triadimefon 200 times liquid spray control every 10 days, once every 10 days, due to continuous repeated use or high concentration of triadimefon, it will lead to shortening of chrysanthemum plant stems, abnormal thickening of leaves, smaller flowers and burning to death, so the above two drugs can be used alternately.