How do green pineapple reproduce? Detailed explanation of cuttage process of green radish in soil culture

Cutting is not unfamiliar to flower friends. Many flowers want to propagate by cutting, and green pineapple usually propagates by cutting. The method of cutting is very simple, but for the novice who grows flowers for the first time, it still needs to be mastered and understood. The following is a detailed explanation of the soil culture green pineapple cutting process arranged by the editor.

1. Prepare the soil

The soil matrix needed for its growth needs to be prepared before cutting. Green pineapple is suitable for growing in a loose environment. Vermiculite, perlite, sand, rotten leaf soil and so on can be selected. After mixing them evenly, put them into the flowerpot.

2. Select branches

The branches used for cutting must ensure the survival rate, so generally choose the branches with strong growth and no diseases and insect pests, and cut off the top of them.

3. Treatment of cuttings

Cut the branches used for cutting into sections with scissors, and keep two or three leaves at the bottom of each section, with a bud point is the best.

4. Cuttage

After the branches are trimmed, they can be cut, generally inserted directly into the soil, exposing 1/3 of the cuttings, and the surface can be covered with a layer of plastic film, while the soil needs to be watered thoroughly.

5. Maintenance skills after cutting.

After the green apple cuttings are finished, you need to keep the soil moist. You can take a small spray pot and water it frequently to prevent the soil from drying. The resistance of the plants after cutting is weak, so do not accept the sun exposure. Leave it in a cool and warm place to grow for a period of time, which can promote the growth of the plant. When the leaves of the green pineapple gradually germinate and the branches grow to a healthy and healthy state, you can move the flowerpot to the sun.

The above is the detailed explanation of the soil culture green pineapple cutting process arranged by Huinong net Xiaobian. If you look at the steps, you will know that it is very simple and practical. Flower friends who want to do cuttings for their own green pineapple should act quickly.

The cultivation method of soil culture green apple is explained in detail!

Green pineapple is alive when it comes to water. Because of its tenacious vitality, it is called "the flower of life". Spread down the green branches and leaves, very easy to meet, even drink water also feel that they are happy. The flower language of green apple is "watch for happiness". You can put one or two pots of green apple at home with bright colors and full of vitality, which can not only decorate the room, but also purify the air and add happiness to life. Today, I will briefly introduce the cultivation method of green pineapple in soil culture. Pot soil requirements: potted green pineapple should choose rotten leaf soil with fertile, loose and good drainage, and partial acidity is better. Green pineapple is more shady, can be placed in the sunny part of the room, in the dark indoor, should be moved to a strong light environment every half month to restore for a period of time, otherwise it is easy to make the internode growth, leaves smaller, affecting ornamental. Temperature conditions: in the north, the green pineapple can survive the winter safely when the room temperature is above 10 ℃, and the green pineapple can grow normally when the room temperature is above 20 ℃. It is not a big problem for general families to reach this temperature, but we should pay attention to avoid excessive temperature difference and keep the leaves away from the heating equipment, so as to avoid wilting or even death. Lighting conditions: in autumn and winter in the north, in order to supplement the deficiency of temperature and photosynthesis, the illuminance of green pineapple should be increased. Put it in a place with the best indoor light, or move to a sealed balcony to bask in the sun at noon. At the same time, open windows as little as possible when the temperature is low, because the leaves may be frostbitten in a very short period of time. Fertilization method: in autumn and winter, green pineapple grows slowly or even stops growing, so fertilization should be reduced. Liquid inorganic fertilizer is mainly poured and sprayed before winter, usually once every 15 days or so. After winter, fertilizer is mainly sprayed on the leaf surface, mainly sprayed through the stomata on the leaf surface, and the fertilizer is absorbed through the stomata on the leaf surface, and the fertilizer effect can act directly on the leaf surface. Watering method: water every day to keep the soil wet, but do not accumulate water to breed mosquitoes. The amount of watering in autumn and winter should be strictly controlled according to room temperature. Before heating, the temperature is lower and the soil evaporation of the plant is slower. In order to reduce watering, the amount of water should be controlled between the original 1max, 4ml, 1max and 2. It is better to pour water in winter after drying for a day. Shaping and pruning: 5 plants are planted or cut directly in each pot, and brown columns are set up in the middle of the pot to facilitate the upward growth of green pineapple. Plastic pruning is carried out in the spring. When the stem vine crawled all over the brown column and the tip exceeded the brown column 20cm or so, cut off the stem tip 40cm of 2 Mel 3 plants. When new buds and new leaves sprout after truncation, cut off the stem tips of other plants. If the whole plant or the lower half of the plant is defoliated due to freezing in winter or other reasons, the half of the stem can be cut short by 1 / 2, and the other half by 2 / 3 or 3 / 4, so that the cut mouth is staggered so that the new leaves growing meters under the cut can be quickly covered with brown columns. In the process of pruning and shaping, it is necessary to pay attention to comb the branches appropriately.

Detailed explanation of propagation and pest control cultivation techniques of large-scale potted green pineapple

Now people like to raise some green flowers at home or in the office environment, especially the green pineapple with strong vitality is the first choice. In recent years, with the increasing demand of potted green pineapple, there are not a few flower farmers who cultivate potted green pineapple on a large scale. But potted green pineapple is not so easy to breed on a large scale. The following editor will talk to you about potted green pineapple reproduction and pest control cultivation techniques.

1 site selection

Choose a site with flat terrain, adequate light, ventilation, good drainage and no waterlogging, surrounded by a fence for protection. The nursery area is composed of a windproof and rain-proof shade with a shading rate of 65%. The site is flat, accounting for 20% to 30% of the total site area, and is located in the southeast corner of the site. The production area is composed of shade sheds with a shading rate of 70% to 80%, the site is flat, clean and weed-free, accounting for 70% to 80% of the total site area.

2 preparation of potted materials

2.1 flowerpot

The specification shall be determined according to the target height of the cultivated product. Generally, a flowerpot with a diameter of 20 cm and a depth of 25 cm is selected with a column height of 130 cm, a flowerpot with a diameter of 25 cm and a depth of 30 cm is selected with a column height of 150 cm, and a flowerpot with a diameter of 50 cm and a depth of 55 cm is selected with a column height of 200 cm.

2.2 cultivation substrate

The matrix with loose air permeability, fertilizer conservation, water conservation and fixation of columns and plants is selected, which is commonly mixed with coconut, peat soil, pond mud and perlite in the proportion of 25%, 25%, 45% and 5%.

2.3 column

It is a plastic circular string with 1 / 2 layers wrapped in brown leather or other materials (not wrapped at the lower end of 15'20 cm). Generally, there are three specifications: column height 130 cm, pipe diameter 8 cm, column height 150 cm, pipe diameter 10 cm, column height 200 cm, and pipe diameter 27 cm.

Propagation of three kinds of seedlings

3.1 Reproductive methods

The cuttings were cut from the mother plant with robust growth, leaf width of more than 8 cm and no disease spot, and the length was generally 10-15 cm. If the panicle is selected from the top, at least 2 fully open leaves should be retained. There are two propagation methods: cuttage and striping.

3.1.1 Cuttage propagation. It should be carried out in June, cutting the branches with a length of 20 ~ 30 cm, removing the leaves of 1 ~ 2 nodes at the base, and potting directly with culture soil with 3 ~ 5 plants in each pot, keeping the soil and air moist, rooting, sprouting and gradually growing into new plants in more than 25 ℃ and semi-shady environment for about 20 days.

3.1.2 striping propagation. The middle part of the vine close to the ground is buried in the soil layer, and the tail end is drawn and tied to the post to strengthen the management of water and fertilizer, and cut off the mother plant after it is formed. This method of propagation can improve the survival rate and save the cultivation time.

3.2 Seedling raising

3.2.1 seedlings were planted on the ground. After machine ploughing and loosening the soil, 30% organic fertilizer was applied to improve the soil and set up the border, with a width of 100 cm, a height of 30 cm, a length of 6 m, and a distance of about 40 cm. The robust and sterilized panicle strips were inserted into the border, and the row spacing was about 15 cm × 25 cm. One bud node and one leaf should be exposed when planting.

3.2.2 raising seedlings in pots. A plastic basin with a diameter of 25 cm and a depth of 30 cm was selected and filled with matrix, the middle column was about 50 cm high, and the sturdy and sterilized panicle strips were evenly planted around the column, with 8 plants per pot.

4 planting time

It can be planted in Guangdong from March to November, and April to September is the most suitable, and the survival rate is the highest.

5. Field management

5.1 Lighting Management

Green pineapple growth does not need strong light, summer to take sprinkling, shading and other methods to avoid burns. In winter, the shading net should be opened to increase the illuminance to avoid frostbite, raise the temperature at the same time, and promote the photosynthesis of leaves.

5.2 Water management

The humidity of the medium in the basin should be kept above 60% after planting, and water should be drenched (sprayed) immediately when it is lower than 60%. Water should be drenched (sprayed) along the top of the column from top to bottom to make the matrix drenched. In winter, the temperature is low, the rate of plant transpiration and soil evaporation is slow, so it is necessary to reduce the watering times and keep the soil moist.

5.3 fertilization management

Spring, summer and autumn are the growing seasons of green pineapple, and fertilizer should be applied frequently and thinly. A compound fertilizer with a higher nitrogen content is applied once every 10 to 15 days, with a concentration of 0.2% to 0.3%. Solid fertilizer can also be applied at a rate of 5 g in a 10 cm diameter flowerpot. In winter, green pineapple grows slowly or even stops growing, so less fertilizer should be applied, and compound fertilizer with high content of phosphorus and potassium should be applied once every 25 to 30 days.

5.4 Plant management

5.4.1 draw vine. It is necessary to draw the vine when the seedling bud has 2 leaf nodes, and the root surface of the vine is closely attached to the surface of the post and fixed with a bamboo stick, so that the aerial root on the root surface is fixed on the post. The introduction of vines needs to be carried out irregularly.

5.4.2 hit the top. When the seedling height is 30 cm, it is necessary to top off the overgrown branches with a height difference of more than 10 cm, so as to prevent uneven growth.

(6) Prevention and control of freezing injury of diseases and insect pests

The prevention and control of green apple diseases and insect pests should be based on prevention. When diseased or residual plants are found, they should be cleaned and buried in time, irrigated with tap water or well water, and reasonably arrange the layout of various varieties in the flower field so as to reduce the repeated infection and mutual spread of diseases and pests.

6.1 Prevention and control of major diseases

6.1.1 soft rot. Also known as green velvet soft rot, is the most common disease in green pineapple cultivation, often causing petiole, stem rot, resulting in wilting and death. At the initial stage, water stains with blurred edges were produced on the green stems or petioles, and then rapidly expanded upward, downward and horizontally, and then the tissues of the tender stems and petioles began to soften and rot and stink. When the disease spot revolved around the petiole for 1 week, the upper part of the disease folded and yellowed. It is easy to occur and popular in the environment of airtight, muggy and high humidity. The prevention and treatment methods include ventilation, cutting off the disease department, spraying prevention and treatment and so on. At the initial stage of the disease, 77% of the particles can be sprayed 500 times, 14% ammonia copper solution 300 times, 72% agricultural streptomycin soluble powder 400 times, neophytomycin 4000 times, and so on, once every 10 to 15 days, 2 times for 3 times.

6.1.2 perforated leaf spot. The disease often occurs in a warm, humid, rainy and poorly ventilated growth environment. Brown spots appeared on the leaf surface at the initial stage of the disease, and after expansion, they converged into large, nearly round and irregular disease spots. In the later stage, the central part of the leaf spot was often perforated, and a small number of small granular black spots appeared on the residual disease tissue. The prevention and control methods include timely cutting off diseased leaves, paying attention to water control and chemical protection in the four seasons. At the initial stage of the disease, spraying 600 times of 12% green copper EC or 1000 times of 70% copper oxychloride wettable powder was sprayed once every 10 days for 2 consecutive times.

6.1.3 anthrax. The disease often harms the middle part of the leaves and can be repeatedly infected during the whole growing period, with reddish-brown or black-brown small pustular spots at the initial stage, faded green halos around the spots, long oval or long strip patches after expansion, dark brown edges and yellowish brown interiors. and there are ringlike markings formed by dark spots. When diseased plants were found, carbendazim, chlorothalonil or 70% methyl topiramate 800-1000 times were sprayed once every 10 to 15 days, twice in a row.

6.1.4 root rot. The disease often occurs in the period of cutting seedlings, which can reduce the survival rate. At the beginning of the disease, the cutting section appeared wet rot, no callus, gradually spread upward, brown or dark brown rot, the root gradually became brown and rotten, the epidermis of the diseased part was easy to peel off, and the white mycelium appeared in the diseased part. the new leaves on the ground first wilted, and then the whole plant wilted and drooped. Drip irrigation and moisturizing after cutting is the main measure to prevent and control the disease. 50% Root rot Ling or 50% Root rot net 800 × 1000 times should be irrigated in time after 2 or 3 days of cutting, so that the liquid can be infiltrated into the damaged rhizome. According to the disease, it can be used continuously for 2 times at intervals of 7 to 10 days. For those with serious root damage, the recovery effect is better with the use of root-promoting regulators.

6.2 main pest control

6.2.1 scale insects. Two or three generations a year, often clustered on the back of vines and leaves, adults and nymphs suck the sap of vines and leaves with needle mouthparts, causing branches and leaves to wither and even the whole plant to die, and can induce coal fouling disease, causing great harm. Because the scale insect has a shell and strong drug resistance, it is difficult to control, so chemical control should be carried out during the peak incubation period and when the shell is not formed. When it is found that individual branches or leaves have shell insects, they can be brushed off gently with a soft brush, or combined with pruning, to cut off insect tips and leaves and burn them centrally. It can be sprayed evenly with 40% omethoate or 50% dichlorvos 1000 times, once every 10 to 15 days, 2 times in succession.

6.2.2 Spodoptera litura. The larvae bite on the leaves, and the first instar larvae bite on the lower epidermis and mesophyll of the leaves, leaving only transparent spots on the upper epidermis. After the 4th instar, they enter the overeating period and bite the whole leaf, leaving only the main vein. When the damage is serious, the leaves can be eaten in a large area. For the first time, 40% dimethoate EC or 40% speed culling 1000 times solution can be used to pick and treat or alternately spray, spray once every 7 to 10 days, spray 2 times for 3 times, spray enough, and the control effect can reach more than 95%.

6.2.3 aphids. Aphids absorb a large amount of juice from leaves and branches with piercing mouthparts, resulting in nutritional deterioration of leaves and branches, growth stagnation or delay, serious abnormal growth, and can induce coal fouling disease and spread a variety of plant viruses. Yellow board can be used to trap and kill, that is, a piece of cardboard or wood with a length of 25 cm and a width of 20 cm is selected, affixed with yellow paper, and then coated with a layer of butter on the yellow paper to make a trap board, which is inserted between flowerpots, and uses aphids' tendency to yellow to stick aphids on the board to trap and kill aphids. Chemical control can also be used, that is, 1.8% avermectin 2000 × 3000 times or 10% imidacloprid 2000 times wettable powder should be used to control young nymphs, focusing on the growth point and the back of leaves, spraying once every 10 days and 2 times in succession.

6.2.4 Red Spider. The insect has a very strong reproductive ability and likes the high temperature and dry environment. It can reproduce one generation in 5 days at the earliest, and most of them cluster on the back of the leaves to form a net. At the initial stage, the leaves lose green, the leaf edges roll upward, so that they wither and fall off, and in serious cases, the plants die. Usually should pay attention to observation, found that the leaf color is abnormal, should carefully check the back of the leaf, individual leaves injured, can remove insect leaves; more leaves, should be sprayed as soon as possible, commonly used pesticides are propargite, trichlorofenac, dimethoate, dimethoate, etc., spray once every 7 to 10 days, spray 2 times in a row.

6.3 Frost injury prevention

The green turnip is afraid of cold and is not resistant to freezing. In the process of cultivation, if it is frozen, it will cause the leaves to scorch or sag, and it will blacken until death. When the temperature is lower than 12 ℃ in early spring or winter, the plastic film must be covered on and around the shed to keep warm, and vents must be set up to prevent frostbite of green pineapple.