What is the reason why Mao jasmine does not bloom? how to prune?

Hairy jasmine pruning still needs to pay attention to skills, if random pruning not only achieve a beautiful effect, but also have a counterproductive effect, what is the reason why Mao jasmine does not blossom? How to prune:

What is the reason why Mao jasmine does not bloom:

The main results are as follows: 1. Placed in shade for a long time, the leaves are too long and thin, while flower bud differentiation and bud opening need direct sunlight. Therefore, jasmine flowers should be placed outside in direct sunlight.

2. If too much nitrogen fertilizer is applied, the leaves will grow excessively and the bud formation will be affected. Therefore, in the early stage of pregnancy, controlling the application of nitrogen fertilizer, proper application of phosphate fertilizer, such as bone dregs, fish bones, rice water and other retting fertilizer, proper control of water, the bud can bloom.

3. The branches and leaves are too dense, and the nutrition is consumed too much, which can inhibit the formation of flower buds, which can be combined with the pruning of the whole plant from April to May to make the branches and leaves of jasmine dense and promote flower bud differentiation.

4. Excessive watering, stagnant water in basin soil, too low temperature and outdoor rain during pregnancy will all cause bud drop. Prevention and control methods: moisture should be controlled, soil should be loosened properly, and heavy rain should be avoided.

How to prune Mao jasmine:

1. Pruning after anthesis should cut off the remnant flowers together with the following four pairs of leaves, this part has strong germination, can divide more lateral branches and bloom more, but it should be flexibly mastered according to the length of flowering branches, because there are overgrown branches that need to be cut a little heavier. Try to maintain a better plant type with the plant, which can not only control the long branches, but also increase the overall ornamental. Slender branches can be cut off from the connection between the side branch and the main branch to avoid consuming too much nutrients.

2. Proper pruning should be carried out before sprouting in spring, elongated branches, weak branches and over-old branches should be cut off, and strong branches should be cut short. 3. If new branches have been issued and grow well, coring should be carried out when the length reaches more than 10 cm, in order to promote secondary shoots and more flowering.

3. After each flower fade, the residual flowers should be removed in time, the long branches should be trimmed properly, and fertilizer should be applied once. The amount of cutting is generally determined by the height of the plant and personal preference, usually between one and three nodes of the flower, and if it is a long branch without flowers, it should be cut more.

4. Pruning should be combined with leaf thinning on a sunny day, and the diseased branches should be cut off at the same time.

Better maintenance can be achieved by understanding the reasons why Mao jasmine does not blossom.

How to raise jasmine? Culture methods of jasmine flowers

Jasmine is a common family flower, which is deeply loved by everyone. Today, the Flower Bonsai Network will share with you the cultivation methods of jasmine and how to raise jasmine. Below, we will introduce the planting methods of jasmine from the shape and variety of jasmine, the growth habits of jasmine, the propagation of jasmine and the prevention and control of jasmine diseases and insect pests.

Jasmine (jasminumsambac) is handed down from ancient Persia in the Han Dynasty, its name is transliteration, ancient books may be unprofitable, Maoli, Mouli and so on. Jinji contains "southern vegetation": "Nashi camellia (that is, Jasminum) and jasmine, all Hu people transplant the South China Sea from the Western region, and southerners love their fragrance and compete for them." Jasmine is cultivated in China, first in the South China Sea, then distributed in Guangdong and Yunnan, and then all over the country. By the Song Dynasty, it had been widely cultivated. In the Ming Dynasty, the jasmine was used to "steam the oil to extract the liquid, which was used as the head of the noodle fat". Chao Dynasty, used for scenting tea, and Magnolia, Magnolia, daidai, become one of the four camellias. Nowadays, planting is most common in Guangzhou, Fuzhou, Hangzhou, Suzhou and other places.

(-) shape and variety of jasmine

1. Morphological characteristics

Jasmine is a subtropical evergreen shrub of Oleaceae. The root is in the shape of whisker root, with many branches and strong rooting power. Stem erect or trailing, ca. 1 m tall. Leaves simple, opposite, elliptic or ovate, entire, glossy. Flowers born on new branches of current year, terminal or axillary, Cymes; usually 1-17 per inflorescence; flowers white, extremely fragrant, mostly blooming at night. The flowering period is quite long, and the flowers bloom continuously from early summer to late autumn. It can be roughly divided into three periods: Lesser Fullness of Grain to the Summer Solstice, when the Meiyu season is called "mildew flower"; Lesser Heat to the End of Heat, known as "Fu Hua"; and White Dew to late autumn, known as "autumn flower". Among them, the number of children is the most, especially fragrant.

two。 Variety

There are many varieties of jasmine, which can be divided into three types according to flower structure.

(1) single jasmine: the branches are soft and slightly trailing. The buds are sharp, the flowers are small, the aroma is elegant, fresh and pure. When sending flowers, the small white flowers are dotted with branches, with a clear appearance. In the past, it was mainly cultivated in Zhejiang, especially Jinhua. The common species are Jinhua species and Taiwan species.

(2) double jasmine: the branches are erect and rough. The petals have two or more layers, the flowers are slightly short, round and fat, the fragrance is strong, and the fragrance is late and slow. The summer flower is usually released at 8: 9 at night, which is 1-2 hours later than the single-petal seed, and the natural fragrance can last about 20 hours. It has strong vitality and is easy to cultivate. The common species are Guangdong species and Hong Kong species.

(3) Multi-petal jasmine: the branches are soft and the new branches are like vines. The petals overlap and bloom in distinct layers. The flowers are small, light in smell and poor in quality. Most of the species seen are treasure beads.

(2) growth habits of jasmine

Jasmine flowers like to be warm and humid, especially when they are hot and humid in summer. Its optimum growth temperature is 25-35 degrees Celsius; it is afraid of cold and sensitive to low temperature, and the minimum temperature can not be lower than 3 degrees Celsius. Short-term light frost can cause leaves to fall off. Like light, afraid of shade, especially suitable for growth and development under direct strong light and long sunshine, the fragrance of flowers is the thickest, but also resistant to semi-shade, the plant has light leaves, slender branches, few flowers and light fragrance. Like fertile, loose, slightly acidic sandy and semi-sandy soil, afraid of barren, heavy clayey, alkaline soil. Fear of drought, fear of waterlogging, it is appropriate to keep the soil moist, stagnant water or drought can affect growth and development.

Although jasmine has a wide range of adaptability, it still has relative requirements for its living environmental conditions, such as temperature, light, soil and moisture.

(1) temperature: Jasmine has a warm sound, is afraid of cold, and is quite sensitive to temperature. In general, when the daily average temperature is about 10 degrees Celsius, the root system begins to grow slowly, when the daily average temperature is about 19 degrees Celsius, the branches begin to sprout, and when the daily average temperature is above 23 degrees Celsius, they can give birth to buds and form flowers. The temperature of 25: 35 degrees Celsius is the best temperature for jasmine growth, and 32-37 degrees Celsius is the best temperature for flowering. If the temperature is lower than 9 degrees Celsius for a month in a row, a large number of leaves will fall. If the temperature is below 0 degrees Celsius, there is a risk of freezing to death. Therefore, family potted jasmine, when the temperature drops below 10 degrees Celsius, should do a good job of anti-freezing and warm work to protect it safely through the winter.

(2) Light. Jasmine is light-loving and afraid of shade, especially direct strong light and long-day light, which is more suitable for its growth and development. If the light is sufficient, the branches are thick and leaves are thick, the leaves are dark green, the flowers are many and large, the aroma is rich, the resistance to diseases and insect pests is strong, the diseases and insect pests are less, and the cold resistance is also strong. If the sunlight is not enough, the branches are thin and weak, the leaves are thin and yellow, easy to fall off, the flowers are small and few, the aroma is weak, the disease resistance is weak, and the cold resistance is also poor. According to the experimental determination, when the light time is too little or too little, the jasmine plant can not conceive buds.

(3) soil: Jasmine likes loose, fertile, slightly acidic sandy and semi-sandy soil, and is afraid of barren, sticky and alkaline soil. Because the root growth of the plant is relatively developed, in the process of plant growth and development, especially in the flowering stage, it needs to absorb a lot of nutrients and water from the soil, so it is required to use deep, fertile and loose sandy loam. If planted in this soil, the plants are strong and the flowers are of good quality. If the soil used has poor air permeability, low fertility and lack of organic matter, the root growth is blocked, the plant is short, the stem and branch is slender, and the flowering is few and small.

(4) moisture: Jasmine is afraid of drought and waterlogging. If poor drainage, the formation of long-term stagnant water or drought, will affect the growth and development of plants. Due to different varieties, the requirements for water are also different; the root system of single-valve jasmine is deeper and more dry; while the root system of double-valve jasmine is prosperous, but the depth of penetration is not as deep as that of single-valve jasmine, which requires more water because it is less tolerant to drought.

(3) methods of propagation of jasmine flowers

The propagation of jasmine is usually done by cutting. This method has the advantages of high reproduction coefficient, high survival rate, convenient management and so on. Cutting propagation is divided into hardwood cuttings and tender wood cuttings.

1. Hardwood cuttings

(1) cutting time: generally at the end of March. At this time, the temperature began to rise, the sap began to flow, and the trees began to germinate and grow. At this time, the cuttings had faster callus, faster growth and higher survival rate.

(2) selection of cuttings: it is better to use strong, disease-free and pest-free branches in 2023. The surface of this branch is grayish white. The selection of cuttings, generally combined with mother plant pruning, is selected from the pruned branches.

(3) the length of cuttings: cut the selected branches into branches of 10 cm to 15 cm, cut flat at the upper end and oblique at the lower end. Inserted in a loose, fertile basin with good drainage performance. After cutting, within one and a half months, it is necessary to achieve the watering method of "a small amount and many times", that is, watering frequently and watering less, in order to keep the basin soil "dry and wet", that is, the wet state of neither dry nor wet, which is beneficial to the callus and rooting of cuttings, which is the key to the survival of cuttings.

2. Softwood cutting

The main results are as follows: (1) the suitable cutting time is from May to August. At this time, the branches have formed a semi-lignified state, the growth is exuberant, and the survival rate after cutting is very high.

(2) Cuttage soil: the cuttage culture soil can be cultivated by tapping fine sifted soil, but it must be mixed with 40% rice husk ash or fine gravel, or the culture soil planted with jasmine, the fine soil after sieving. Generally speaking, the requirements of cultivated soil should be fine, loose, fertile and good drainage performance.

(3) Cuttage basin: a small basin with an optional diameter of about 22 cm. On the drainage hole at the bottom of the basin, cross-cover two pieces of broken basin to block the soil and not block the water; spread a layer of 3 cm thick granular soil, fill the soil particles with culture soil, and gently vibrate the basin to make the basin soil solid.

(4) selection of cuttings: the tender green branches growing in the same year are selected to grow healthily, with at least 3 pairs of leaves. The method of ear selection is to cut off a net branchlet together with an old branch, and then cut it from the middle to form two cuttings (figure 21), and then cut off a pair of leaves at the base of the cuttings. This method is called "heel cutting", that is, with a small section of old branches, after cutting, it is easy to heal and survive. It should be noted that the cuttings must be cut along with the cuttings, not stored for too long, otherwise, it will cause a large amount of water loss of cuttings, and can not survive after insertion.

Fig. 21 cutting of shoots and cuttings

1. Branch selection; 2. Insert a person

(5) cutting method: when cutting, the selected cuttings should be evenly cut into the basin soil prepared by people according to the plant spacing of 5cm to 6cm. For example, a small basin with a caliber of 22 cm can generally insert 30 cuttings; if it is inserted too little, it is relatively difficult to survive. The depth of cuttings inserted into the soil should be 1 / 3 of the length of cuttings, not too deep. Immediately after cutting, pour the basin soil with water once, and place the pot in the shade of the leeward.

(6) Management after cutting: spraying water on the leaf surface 2-3 times a day during the 20-30 death period after cutting. After about one month, the cuttings sprouted and took root, gradually moved to the sun, gradually increased the light, and was suitable to remove and apply light fertilizer and water.

Softwood cuttings, such as early jasmine seedlings, can also blossom in a small amount in the same year.

However, it should be noted that it must not be planted separately, because it is already autumn and the temperature begins to drop. If it is planted in the pot at this time, the root system damaged when dividing the basin can not heal quickly, and its cold resistance is poor, so it is difficult to survive the winter safely. Therefore, the pot planting of tender wood cuttings should be carried out during the Qingming Festival and Rain Water in the second year, which is the most suitable.

(4) cultivation and management of jasmine

Some people reflect that jasmine is difficult to raise: some long branches and leaves do not blossom, some are often in a yellow state of thin leaves, and some will inexplicably scorch and die. In fact, jasmine is adaptable and not difficult to raise. The above problems are all caused by improper management. The specific methods of cultivation and management are introduced below.

1. Upper basin

Before putting on the pot, two things must be done: the preparation of culture soil and the selection of flowerpots.

Culture soil is the basis of flower growth and flowering. Potted jasmine flowers are planted in potted soil with limited nutrients, which requires that the potted soil is rich in organic matter; according to the requirements of jasmine growth habits, the soil must also have good water retention, water discharge and loose air permeability. This kind of cultivated soil is generally prepared by ourselves, and there are three methods:

① soil and plant raw materials, such as fallen leaves, vegetable peel, pericarp, grass, bran, animal raw materials, such as chicken, duck, pigeon dung, barnyard manure, animal offal, feathers, fish scales, fish belly, bone meal, washing fish meat residual water, etc., layered stacked in the tank, that is, a layer of soil-layer animal and plant raw materials, stacked and compacted, after more than half a year of fermentation rot, can be used. If the soil is sticky, you can mix in the right amount of fine sand. The composition proportion of cultivated soil is generally 4 parts of soil, 4 parts of compost and 2 parts of fine sand.

② in winter, dig the topsoil or vegetable garden soil, ditch mud, etc., after freezing and loose transformation, that is, let it freeze and expose for a period of time in the cold winter, and then mix it with rice chaff ash. Among them, 7 were from soil and 3 from ash. ③ is made of scorched soil ash, that is, 7 parts of turf mud piled up and burned and 3 parts of water and sand, which are fully mixed.

Among the above three kinds of culture soil, the texture of the first kind of humus soil is the best. If the latter two kinds of culture soil are used, 2%-3% fermented bean cake or rapeseed cake should be added to the soil as base fertilizer, and more topdressing should be applied appropriately. If the culture soil is made unconditionally, the culture soil sold in flower and tree shops can also be used.

The flowerpot of jasmine pot is generally selected as the plain burning mud pot. The pot wall of the burning mud pot is porous and permeable, which is conducive to the control of the dry and wet degree of the basin soil, and is more suitable for the growth of jasmine root system. On the other hand, the glaze basin and porcelain basin have smooth wall and poor water and air permeability, which is disadvantageous to the growth of jasmine root system. As for the size of the pot, generally speaking, the diameter of the flowerpot is slightly smaller than that of the crown, that is, slightly less than the distribution range of branches and leaves of the plant. If the seedlings are small and planted in a large basin, the roots of the seedlings cannot be quickly covered with basin soil, and the water of the basin soil cannot be quickly consumed every time they are watered. In this way, the seedlings are often in an excessively humid environment, which will not only affect the root growth of the seedlings. It may even cause the seedlings to be "drowned". On the contrary, if the large plant is planted in a small basin, the water and fertilizer in the basin soil can not meet the needs of root growth and development, it will also lead to poor plant growth, or even death.

Potting time of jasmine seedlings. It should depend on the climatic conditions of various places, and it should generally be carried out when the daily average temperature is stable above 10 degrees Celsius. In the areas of Shanghai, Nanjing and Hangzhou, it is appropriate to start the basin after Ching Ming Festival. Before putting on the basin, if you use a new basin, you should soak the basin in clear water for several days, let it fully absorb water and moist, remove the fire, and then use two pieces of broken basin pieces of large and small pieces to be placed on the bottom hole of the basin in the shape of "human", with small pieces under and large pieces on the top, so that the hole does not leak soil, but can seep water; do not put the broken basin pieces on the bottom hole, plug the hole, affect water leakage and air permeability. Then add 3 cm thick coarse-grained culture soil to the broken basin.

When planting, first prune the seedlings properly, cut off the dead branches, and appropriately cut off individual long roots, so as to make the roots symmetrical around, which can promote the balanced growth of the roots.

Then, divide the four or five seedlings into two clumps, put them in the basin and hold the stem with the left hand to make the root system uniform. Cloth in the basin, with the right hand with a shovel, add soil to 80% full, and then use both hands to gently vibrate the flowerpot, so that the culture soil and seedling roots close. The depth of seedling planting should be appropriate, generally 1.5 cm deeper than the depth of the original seedling growth; and not too deep or too shallow, the root ventilation is not good; too shallow, the root is exposed, the plant is unstable, which is not conducive to plant growth. After planting, the pot soil should be slightly solid, watered thoroughly, and then the flowerpot should be placed in a stable place; if the pot plant is not placed properly, it will cause the pot to tilt, which will cause the pot soil to dry and wet unevenly, resulting in local water dampness and local root rot.

two。 Watering

According to the habit of jasmine flowers that like to be moist, afraid of stagnant water and breathable, watering mastered the principle of "basin soil is not watered, soil is dry", and soil dry refers to the whitening of basin soil surface. Watering should be thoroughly watered, thoroughly watered smoothly, so that the basin soil is dry, wet and wet, dry and wet alternately, because jasmine not only needs water, but also can not lack of air. If the potted soil is often wet and the air cannot enter the human soil, the jasmine plant will not grow well or even die due to lack of oxygen. When beginners to raise flowers, there may be two kinds of bias: one is that the basin soil is watered too often, resulting in the basin soil in a wet state for a long time; the other is that the basin soil opens large cracks due to too little watering. Neither of them is appropriate and must be rectified at any time.

Jasmine watering must be determined according to the season, climate and the growth of jasmine. In the case of Jiangsu and Zhejiang, it can be roughly mastered as follows:

From the middle of March to the first ten days of April, the roots of jasmine begin to move after overwintering, and can be watered once every 3-5 days.

From mid-April to mid-May, the temperature began to warm up, but the temperature was not high; the jasmine plant was branching and growing leaves, and the water consumption was not very high. At this time, it can be watered once every 2-3 days, from 10:00 to 2 pm every day. But during this time, Julie's branches and leaves continue to grow, the temperature is gradually rising, and the amount of water is also increasing.

From late May to early June, spring flowers bloom, and the temperature is higher, and the water demand of jasmine increases gradually. At this time, it can be watered once every two days, before 10:00 in the morning and after 3: 00 p.m. in the afternoon. During this period of time, watering should also be flexible, such as more watering on sunny and windy days, and less watering on cloudy days.

From mid-June to late August, it is the "three volts" hot summer weather, the temperature is the hottest, jasmine flowers are also in the blooming period, water ft is very large. During this period, we should not only water it every day, but also water it thoroughly, even once in the morning and once in the afternoon. When watering, you should also pay attention to sprinkling water on the leaves. Only in this way can we prolong the flowering period and make the aroma more intense. However, there are often showers during this period, such as stagnant water in the basin, it should be poured out in time.

In September and October, the temperature dropped gradually, although the jasmine was blooming in autumn, but the number of flowers decreased gradually, and the growth activity was also weakening. At this time, it can be watered once a day or two. In case of continuous autumn rain, stagnant water appears in the basin, it should be dumped in time, or you can use thin wire to drill 1 or 2 small holes in the basin soil to facilitate the discharge of Rain Water.

Since November, when the temperature turns cold, attention should be paid to controlling moisture so as to promote the growth and fullness of branches in preparation for safe overwintering. When the weather is dry, it can be watered once every 3 to 5 days.

From late November to early March of the following year, jasmine is protected from cold and overwintering. At this time, water must be strictly controlled; otherwise, too much watering will lead to a decrease in soil temperature, which is not conducive to the safe overwintering of plants. Generally, it can be watered once in 5 to 10 days. It depends on where the pot trees are placed, that is, the pot trees placed in the sunny part of the window are watered once every 5 to 7 days; the pot trees placed in the shade can be watered once in about 10 days, so that the basin soil can always be moderately moist.

3. Fertilizer application

In jasmine potted plants, rational fertilization is the key to raising potted plants and increasing flowering. In ordinary families, there are a wide range of fertilizer sources, and the methods of self-made dry fertilizer and liquid fertilizer have been introduced in the previous flowers, which are no longer stated here.

The proportion of fully mature self-made fertilizer, human and animal manure and urine fertilizer and water is 2 parts of fertilizer and 8 parts of water. Cake fertilizer, such as bean cake, vegetable cake, etc., can also be mashed into powder without fermentation and used directly. The method of use can be applied either dry or after soaking. The quantity used is generally 25 grams of cake fertilizer for each pot. Granular fertilizers sold in flower and tree shops can also be used in accordance with the instructions.

Fertilization should grasp the principles of reasonable fertilization due to time, plant, fertilizer type and so on. The method of "applying thin fertilizer frequently" is generally adopted, and less is applied to small plants and more to big plants.

Fertilization time and requirements: before and after Grain Rain, the potted plants were moved from indoor to outdoor, and the diluted self-made liquid fertilizer was applied every 2 ~ 3 days, and the liquid fertilizer was mixed with water at 2:8 to promote plant growth. When pregnant buds and the first batch of flowers bloom, phosphorous fertilizers, such as 0.3% superphosphate leaching solution, should be properly supplemented; however, plants newly turned into pots and soil should not be fertilized at the first flower, because the new root injuries have not yet fully healed, and fertilization is easy to cause rotten roots. The first batch of flowers will bloom, but when there are still 3-40% of flowers, the application of fertilizer should be properly thickened to facilitate the formation of lower batch flowers. after blooming, the concentration of fertilizer can be increased to 3:8, and the frequency of fertilization should be increased. Fertilizing once every other day "after the second batch of flowers bloom, the fertilization requirements are the same as those after the first batch of flowers bloom. When the third batch of flowers bloomed, the temperature gradually decreased in autumn, and the frequency of fertilization must also be gradually reduced. At first, fertilization could be applied once a week, and nitrogen fertilizer should be reduced, such as reducing the proportion of human and animal feces, urine and cake fertilizer with higher nitrogen M, increasing the application of phosphorus and potassium fertilizers, such as plant ash and bone meal, to restrain overgrowth and improve the maturity of branches. After Frosts Descent, fertilization can be reduced or stopped.

The time of fertilization should be controlled flexibly, and it is generally appropriate to apply fertilizer before the evening. When fertilizing, the basin soil should not be too dry, such as too dry, that is, the basin soil is white, which is not only easy to burn the roots of pot plants, but also not conducive to plant absorption of fertilizer. Therefore, fertilization should be combined with watering, such as fertilization in the evening, should be in the next morning, do not have to wait for the basin soil to dry, timely watering, this is called "backwater", which is conducive to the full absorption of fertilizer by the plant. If the misuse of "raw fertilizer" or excessive concentration of fertilizer burns the roots of potted plants, resulting in scorched yellow at the tip and edge of leaves, loss of drooping leaves under water, and a large number of fallen leaves, measures should be taken immediately to "de-fertilize". Wash the potted soil with clean water for 2 or 3 times, watering the landscape more, so that the raw fertilizer or overly thick fat will leak out from the drainage hole at the bottom of the pot. at the same time, put the pot in the shade, stop fertilization, after 5-7 days, wait for the new root of the plant to grow again, and then put it back to the original place.

4. Prevent the cold from overwintering

Jasmine likes warmth and is afraid of cold. In places where there is frost in winter, it is very important to do a good job of cold prevention over the winter. There are four main reasons for the death of jasmine in winter.

-it's cold. When the temperature drops below 0 degrees Celsius, the jasmine plant dies because of the freezing of its branches and leaves.

The second is to catch a cold. The temperature drops, although not below 0 degrees Celsius, but when it drops to 3-5 degrees Celsius, the physiological function of the plant is damaged, such as improper management, it will also lead to the death of the plant.

Third, the basin soil is too wet. When the temperature drops below 10 degrees Celsius, the plant is dormant and requires little water. At this time, if the watering is too much, the basin soil is too wet, and the pot root system is in an impervious state for a long time, it is easy to suffocate to death.

Fourth, the soil is too dry. In winter, because it is not watered for a long time, the basin soil dries up and cracks, so that the pot plant dries up and dies.

Therefore, in order to ensure that the jasmine pot can survive the winter safely, we must do a good job of preventing frost and keeping warm and controlling the moisture of the basin soil.

First, anti-freezing to keep warm. In the lower reaches of the Yangtze River, when the temperature drops in the first ten days of November, it will drop to 5-10 degrees Celsius. At this time, the jasmine pot should be moved indoors and placed in the sunny window, so that the plant is not only exposed to the sun but also protected from the cold wind. When the temperature drops to 0 degrees Celsius, the pots should be removed from the window at night to prevent the cold wind from penetrating through the window, causing the pots to be frozen; but in the next morning, when the sun comes out and the temperature rises, the pots should be moved back to the window. When freezing will occur in the room, cover the pot tree with a plastic film bag at night, tie the mouth of the bag tightly (figure 22), and then put the pot plant in a warmer place; when the sun comes out the next day, when the temperature rises above 0 degrees Celsius, you should take off the film bag in time; or untie the mouth of the bag to breathe. If the pot is covered in a bag for a long time, there is a risk of suffocation. When the cold snap strikes, open the doors and windows to prevent the cold wind from blowing on the pots.

Second, control the moisture of basin soil. The pot soil of potted jasmine should be moist and dry in winter. When pots are moved from outside to indoors, the number of watering and the amount of water should be gradually reduced. Generally speaking, when the surface of the basin soil turns white and touches the soil layer with your fingers, it only needs watering when it feels "hard". As long as the water boy is watered outside, it will be enough. When the temperature drops below 0 degrees Celsius and the pots enter a completely dormant state, they need very little water, and the basin soil should be more dry; even if the basin soil is very dry and the leaves are not soft, they do not need to be watered until the basin soil is hard and the leaves wilt slightly. Of course, the basin soil can not be too dry, if it is too dry, it will cause the pot plant to dry to death. In the lower reaches of the Yangtze River, after about February, when the severe cold passes and the temperature rises above 0 degrees Celsius, jasmine pots gradually come back to life, and the demand for water also increases slightly. At this time, can be more appropriate than the previous period of watering, if found that the basin soil is hard, need to be watered immediately, must not let the leaf wilting phenomenon.

5. Turn the basin and change the soil

After 2-3 years of growth, the root system of jasmine potted plant coalesced in the potted soil, and the physical and chemical properties of the cultivated soil became worse, and the available nutrients decreased significantly, which will seriously affect the continued growth of jasmine plants, with thin branches and leaves and obvious reduction of flowering. Some only grow branches and leaves, rarely blossom, or even no flowering. At this time, the basin should be turned in time to change the soil.

The time to turn the basin can be chosen in the late spring, when the jasmine will have begun to sprout and branch, the lower reaches of the Yangtze River, Zhejiang and Shanghai, it is appropriate to turn the basin in early May, not too early, so as not to increase the number of Hu branches. The new soil used for turning pots should be slightly thicker than that used when planting coffin seedlings. The newly used flowerpot, as mentioned earlier, should fill the broken tiles or broken pots on the drainage hole at the bottom of the basin, and then spread a layer of coarse-grained culture soil on the bottom of the basin.

Turn the basin in the same way as other flowers. First of all, remove the pot from the original basin. When taking off the basin, use the middle finger and index finger of the right hand to hold the base of the plant, place the basin upside down in the palm of the hand, and pat the bottom of the basin with the left hand to make the root system and soil mass come out completely (figure 23). Then use scissors or a small shovel to remove 2cm of hard soil from the top of the lump, remove 3cm of topsoil around the lump, cut off the soil at the bottom of the lump with roots, and then use scissors to remove some of the weak and overgrown roots (figure 24). After pruning, use a corresponding or slightly larger basin to replant the coffin in the same way as when planting seedlings (Fig. 25). However, it should be noted that because the distance between the soil mass and the basin wall is relatively small, when adding soil, we should add soil and gently tamp it with a thin bamboo pole, so that the new soil and soil mass can be closely combined, which is beneficial to the survival of the plant. After the planting is done, it is immediately watered with water.

1 bend over the base of the plant with the middle finger and index finger of the right hand.

two。 Place it upside down on the palm of the right hand and pat the bottom of the basin with the left hand to protrude the complete clod root.

Some pots can blossom and flourish as long as they are still healthy and luxuriant, so there is no need to rush to turn the pots. If you do not turn the basin, you can simply add some new mud to the original basin, strip off the surface of the basin soil about 2 cm deep, pour out the old soil, and then add new culture soil.

6. Shaping and pruning

Plastic pruning is also called pruning, including picking leaves, pruning, picking buds, picking hearts, picking blind buds. This can not only make the shape beautiful and improve the ornamental value, but also promote the jasmine pot to sprout early, blossom early and blossom more and better. 1. To fight for the surface layer of 2 cm thick old-fashioned. (1) picking leaves: in the lower reaches of the Yangtze River,

In Zhejiang, around the first ten days of April, the daily average temperature has reached about 10 degrees Celsius, jasmine pots should be generally picked leaves. The specific method is that after the potted soil is dry, except for 2 or 3 branches retained on the plant and 2 strong old leaves at the upper end, the rest of the leaves will be removed. When picking leaves, we must pay special attention to two points: first, do not damage the buds in the leaf axils, such as damage a bud will lose a branch, less flowers; second, the basin soil can not be picked leaves when wet, because jasmine leaves after poor water absorption, basin soil is not easy to dry, it is disadvantageous to jasmine root growth. The leaf is also the basis for judging the dry and wet of the basin; the leaf is weak and the leaf tip is drooping, which indicates that the basin soil is too dry and needs watering; the leaf is normal, which reflects that the basin soil is not short of water and can not be watered temporarily.

(2) pruning: including pruning and shaping. While picking leaves, pruning, cutting off withered branches, disease and insect branches, old branches and thin branches. Generally speaking, jasmine can grow five branches in a year: the first cutting is strong, the second is strong, and the fourth and fifth cutting is very thin and weak. When pruning, the fourth and fifth cutting twigs can be cut off (figure 27). Because of these thin and weak branches, they can not give birth to a large number of flowers, which not only wastes nutrition, but also affects ventilation and light, which is not conducive to the growth of potted plants.

By picking leaves and pruning to concentrate nutrients, jasmine can blossom as soon as possible. When pruning, it can also be combined with plastic surgery. After growing for a period of time, jasmine pots often appear uneven branches, individual branches are particularly long, and some branches are bald and unbranched, which is harmful to beauty. If these branches are properly cut and beautifully shaped, their ornamental value can be improved.

(3) picking buds: before and after Lesser Fullness of Grain, when the new shoots were budding, the buds conceived for the first time appeared. At this time, the temperature is still low, the temperature difference between day and night is large, the flower camp is stunted, the flower is small, and the fragrance is poor. In order to avoid wasting plant nutrients, promote the emergence of more new shoots, and give birth to more and better buds, these first flowers should be removed in time before they develop and grow, including the buds at the top of the branches (figure 28).

At the same time, for branches that do not grow buds but only "opposite leaves", the top should be removed and the length of the branches should be half of the length of the branches. In general, there are two pairs of four or five pairs of leaves and one pair of three pairs of leaves (figure 29).

(4) coring: the jasmine pot plant, after growing in 2012, often produces several long branches from the base of the plant. This kind of person grows branches and usually does not grow buds and blossom. In order to transform the long branch of the apprentice into a flower branch, the heart must be removed (figure 30). The length of the coring is to make the left part equal to that of the main stem, usually cutting off the top of the branch with 2-3 pairs of leaflets. After picking the heart, the lower part of the cut mouth will usually pull out 4 or 8 new branches and grow buds on the tip of the branch. This treatment can not only blossom more, but also be beneficial to the transformation of branches.

(5) picking blind buds: Jasmine flowers usually bloom one flower at the top of the branch, then two flowers side by side after one or two days, and then the third pair of flowers. If there are no buds in the axils of the two leaves under these flowers, they are called "blind buds" and will not grow branches and buds. Therefore, after the last pair of flowers mature, it is necessary to put the upper end of the branch, including two leaves that do not sprout.

Cut it off together (figure 31). In this way, the young buds in the axils of the lower leaves of the branches can be stimulated to grow and grow buds, and the number of flowers can be increased.

In addition, in the process of management, the water content of jasmine pots is controlled, watering is reduced, the soil is slightly dry, the growth of branches and leaves is controlled, and nutrients and water are concentrated to supply flowers and branches.

This is the key to make jasmine blossom more. This method is called "dry trees to promote flowers". The best time for "dry trees to promote flowers" should be when the buds of each cut flower have grown to the size of mung beans, and when the first flower is white, it will be about a week before it blossoms. At this time, it is the gestation period of the next cut flower. As for mastering the specific methods of watering "heat": watering can be carried out only when there are cracks in the basin soil, cracks in the basin wall, wilting and drooping young leaves and buds of jasmine plants, commonly known as "flower upside down".

If we do a good job in the above management measures, coupled with reasonable fertilizer and water management, then the jasmine pot will certainly be full of flowers.

7. Pest control

There are many kinds of diseases and insect pests of potted jasmine, and there are mainly brown spot, white scab and shell insects. The prevention and control methods are as follows:

(1 > Brown spot: in the growing period of jasmine, it may occur from May to October. It mainly harms the twigs and leaves, causing the branches to die. There are black spots on the susceptible branches.

Prevention and treatment: cut off the diseased branches in time and burn them immediately to prevent the spread of infection. It can also be sprayed with 800 times carbendazim or Topu body liquid to control branches and leaves.

(2) silk blight. It is easy to occur under the condition of high temperature and humidity, especially after the thunderstorm from June to July. The disease usually begins at the base of the stem near the ground, and then gradually spreads to form a white filamentous film, which is the mycelium of the disease, and then gradually forms small sclerotia in the hyphae, similar to rapeseed. The phloem of the affected area rotted, the leaves withered and fell off, and in severe cases, the whole plant died.

Prevention and cure method: ① change the basin soil, remove the old soil and replace it with new soil. ② changes the site and puts the pots in a sunny and well-ventilated place. ③ in the basin soil mixed with an appropriate amount of 70% pentachloronitrobenzene to disinfect the soil, generally 5 grams per basin.

(3) scale insect: a tiny pest that sucks the sap of potted plants, parasitic on branches and leaves. After the plant was killed, the leaves showed gray spots, the growth was blocked, and the whole plant died in serious cases.

Control method: it can be killed manually or brushed with a brush, or the branches and leaves can be sprayed with 60 times petroleum emulsion.

The efficacy and function of honeysuckle and the planting technology of honeysuckle

Honeysuckle is found in all parts of the country, and it is deeply loved by people because of its fragrance. Of course, honeysuckle tea and honeysuckle dew often appear in people's daily life, but when it comes to the efficacy and function of honeysuckle and the planting technology of honeysuckle, I believe that few people know it. The following editor aims at the efficacy and function of honeysuckle, honeysuckle planting technology to give you a detailed introduction. [efficacy and effect] Hangzhou white chrysanthemum makes gentleman Yuzhu, Rhodiola, peony, calendula, lily, rose, rosemary, rosemary, honeysuckle, honeysuckle planting technology-

[plant archives]-

English name: honeysuckle

Scientific name: Japan-es

Aliases: honeysuckle, honeysuckle rattan, silver rattan, dichromatic rattan, Erbao rattan, right rattan, Zifeng rattan, mandarin duck vine

Family: Caprifoliaceae of Ninjuriaceae

Genus: Lonicera of Lonicera

Distribution of origin: it is distributed in Shandong, Henan, Inner Mongolia, Hunan, Zhejiang, Jiangxi, Fujian, Hunan, Guangdong, Guangxi, Sichuan and other parts of the country.

Morphological features: rattan can be up to 9 meters long, hollow stem, much branched. Leaves opposite, ovate or long ovate, 3-8 cm long and 1-3 cm wide, young leaves pubescent, abaxially grayish green. Flowers in pairs of axillary or born at the top of flower branches, bracts 2 leaf-like, pedicels and flowers are pubescent, Corolla at the beginning of white, after 2-3 days to become golden yellow, so it is known as honeysuckle. Calyx short, 5-lobed, lobes triangular, Corolla slightly 2-lipped, 3-5 cm long, tube about as long as lip, upper lip 4-lobed, lower lip unlobed, outside pilose and glandular hairy; stamens 5, ovary glabrous, style slightly longer than stamens, protruding from the Corolla. The berries are globose, black when ripe and glossy.

The efficacy and function of honeysuckle-

● honeysuckle tea: sweet, cold, with heat-clearing and detoxification, wind-heat evacuation and other effects, can treat summer fever, diarrhea, influenza, sores and furuncles, acute and chronic tonsillitis, periodontitis and other symptoms.

The stem, leaf and flower of ● honeysuckle have medicinal value, which has the functions of detoxification, anti-inflammation, disinfection, sterilization, diuresis and antiitching.

● honeysuckle dew: fresh honeysuckle with fragrance is the best product for children to prevent and cure prickly heat abscess in summer.

Because of its cold medicine, honeysuckle is not suitable for long-term drinking, it is only suitable for temporary drinking in hot summer to prevent and cure dysentery. What the editor would like to remind you here is that deficiency cold physique and female menstruation are not allowed to drink honeysuckle tea, which will have adverse reactions. Although there are many effects and effects, but drinking too much will be counterproductive.

Honeysuckle planting technology-

[seed reproduction] 11 pick the fruit, scrub it in water, clean the pulp and blighted seeds, and take the seeds to dry. In April of the following year, the seeds were soaked in warm water of 35-400 ℃, soaked for 24 hours, mixed with 2-3 times wet sand to promote germination, and so on when the seed crack reached about 30%, the seeds could be sowed. Before sowing, choose fertile sandy loam, turn 30cm to 33cm deep, and form a flat bed about 65cm to 70cm wide, with unlimited length. After finishing the bed, pour water thoroughly, when the soil is slightly loose and dry, flatten the border surface, draw 3 shallow ditches per border according to the row spacing of 21-22 cm, spread the seeds evenly in the ditch, and cover 1 cm of fine soil. After sowing, keep the ground moist, the border can be covered with a layer of weeds, spray water every two days, about ten days can be unearthed. Seedlings can grow up to 1 meter high that year. After stopping growing in autumn, cut off the upper branches, leaving 30cm to 40cm, and transplant in early winter or the following spring. The seed consumption is about 15 kg per hectare.

[cuttage propagation] is divided into two types: direct cutting and seedling cutting.

● direct cutting: where the water conservancy conditions are good, it can be carried out all the year round, usually in the rainy season or in early winter combined with pruning. Select vigorous, pest-free, flowering 1-year-old 2-year-old branches cut into 30cm, cut off the lower leaves as cuttings, cut as you like. On the whole land, the hole is dug according to the row spacing of 165 cm and the plant spacing of 150 cm. The hole is 16-18 cm deep, with 5-6 cuttings in each hole, scattered and obliquely buried in the soil, and about 7-10 cm is exposed on the ground. In case of drought years, watering after planting to improve the survival rate. The specific row spacing can vary according to the topography. Planting in the plain can be done after winter wheat seedlings, combined with pruning, cut off the vigorous branches with 2 or 3 branches, insert holes in the wheat ridges according to 4 500 plants per hectare, and water them immediately after planting.

● seedling cuttings: in order to save honeysuckle branches and facilitate management, seedling cuttings are often used. The method is to select the land which is convenient for watering, turn it deeply and flatten it, and use soil and miscellaneous fertilizer as base fertilizer. From July to August, the trench was opened according to the row spacing of 23cm to 26cm, the depth was about 16cm, and the plant spacing was 2cm. The cuttings were placed obliquely into the ditch, and then filled with soil cover and compacted. Water once after planting. If the weather is dry, water should be watered every 2 days to keep the soil moist. About half a month, it can take root and sprout, and transplant in spring or autumn the following year.

Conclusion: in fact, honeysuckle planting is not difficult, the soil requirements are not strict, barren mountains, Weir can be cultivated. Of course, it is best to grow honeysuckle in rich, deep and loose sandy soil.

[more Encyclopedia of plants]

Tequila, canna, other flowers, forget-me-not dandelions, Dendrobium candidum, Taxus, kapok, cotton, sweet-scented osmanthus and sea crabapple flowers.

Home fengshui plant bedroom fengshui plant plum blossom aloe jasmine radiation protection plant potted plant potted plant drug plant

Mistletoe indoor flower rich tree evergreen potted production red palm stone flower geranium garden crab claw orchid plain sailing

Touch sweet bean pea green spring festival flowers hydroponic culture rich bamboo African jasmine rose succulent plant tropical plant