Key technology of strawberry seedling

A ﹑ nursery selection and preparation Linyi Fertilizer Copyright
Linyi Fertilizer Network Copyright
The nursery should choose soil loose and fertile, convenient for irrigation and drainage, and the plots of strawberries that have not been planted. It is most ideal for mountain seedlings far away from the strawberry production field. The plots that have been bred with strawberry seedlings must first be soil disinfected. After the selection of nursery plots, apply sufficient base fertilizer, apply more than 2000 kg of organic fertilizer per acre, and apply 25 kg of compound fertilizer with 45% nitrogen, phosphorus and potassium, then plow tillage, soil preparation, and alfalfa. The width of the surface is about 1.2 meters. The deep trenches are opened around the seedlings to facilitate irrigation and drainage. The trenches are connected, requiring smooth drainage and no water accumulation after the rain stops. At the end of the tanning, the kneading surface can be sprayed with 50% butachlor 300 times to prevent weeds. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Second, the variety and the mother plant selection and planting seedlings Linyi fertilizer Copyright
Linyi Fertilizer Network Copyright
The selection of varieties should be based on the dominant varieties cultivated in the city, such as red cheeks. It is also possible to allocate some varieties of local marketable products according to the needs of growing strawberries in different places. The seedling mother plants are selected from the detoxified original seedlings or the first generation seedlings, and the production plants are not recommended as the seedling mother plants. The planting time of the seedlings of the seedlings is suitable from the middle to the middle of March-April, and transplanted with soil. It can be planted in the middle row of the two rows or the middle of the dragonfly. The plant spacing is 60-80 cm, and the planting is generally 500-800. . Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Third, the management of the mother plant after planting Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
After the fertilizer and water management seedlings are planted, the manure is applied to the manure to promote the survival of the mother plant. In the future, the soil must be kept moist to promote the stems. Dilute manure or 0.3% urea is applied every 15 to 20 days. For the red cheek strawberry varieties to be fertilized, the “pre-promotion and post-control” measures are implemented. From April to June, the main stage of seedling breeding is carried out. The fertilizer should be applied in an appropriate amount. After July, the growth of the seedlings should be controlled, and the fertilizer should be applied as little or as little as possible. . Should not apply too much nitrogen fertilizer to cause long-lasting raspberry seedlings. During the rainy season, it is necessary to pay attention to drainage and flood control. In the hot and dry season from July to August, it is necessary to resist high temperature and drought to protect the seedlings. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
After the plant is managed and planted, the stems and old leaves are removed in time, and the stolons are removed after the stems are extracted. Timely loosening the soil and weeding. When the grass is plucked, be careful not to float the seedlings. When there is no root seedling, it should be replanted in time. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
4. Pest Control Linfen Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
The main pests and diseases during strawberry seedling are: aphids, red spiders, Spodoptera litura, powdery mildew, anthracnose, yellow (wild) wilt and so on. Focus on the prevention and treatment of anthrax. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Aphids: When the disease occurs, the agent can be selected from 2500 to 3000 times of 10% imidacloprid wettable powder, or 2500 times of 1% avermectin wettable powder. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Red spider: In the initial stage of prevention and treatment, the agent can use 20% of the endangered suspension agent 4000 times solution, or 57% of the acetylene emulsifiable concentrate 2500 times solution. In the prevention and control, 99% chlorophyll 300 times solution is better. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Spodoptera litura: control should be carried out after the occurrence of the hazard in June. The control method is preferably a sexual trap, one per acre; or 0.2% Fuda-only emulsifiable concentrate 1500 times, or 1% avermectin wettability Powder 2500 times solution, or 48% lesbian emulsifiable oil 800 times solution, or 40% chlorpyrifos emulsifiable concentrate 1000 times solution, or 5.7% Baishu emulsifiable concentrate 800 times solution. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Powdery mildew: 5 to 6 months is the peak period of onset, and the initial onset period is timely controlled. Timely clean up the susceptible parts of the plant, 30% Cuize Suspension 1500 times solution, or 50% Tsuibei Water Dispersion Granule 3000 times, or 25% Ethylpyrene Water Suspension 800 times solution. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Anthrax: May-June is the susceptible period of the plant, and August-September is the peak incidence. The prevention and control methods are: (1) avoiding continuous cropping (2) strict soil disinfection (3) "Mei Ji" scaffolding to cover rain, change flood irrigation to micro sprinkler irrigation; use sunshade net protection during high temperature in summer (4) chemical control, cleaning up After the susceptible part of the plant, use 75% tebuconazole, trifloxystrobin (take the enemy) water dispersible granules 3000 times solution, or 25% Kairun oil 1500 times solution, 43% tebuconazole (Haoli) suspension 4000 times or 25% of the agent makes 1000 times of 100 grams, or 60% of Baitai water dispersible granules 800 times liquid spray control. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Yellow (wild) wilting: It is strictly forbidden to use susceptible plants as seedlings for breeding; avoid the soil of the seedlings to be too dry or too wet; when the diseased plants are found, they are promptly removed and the prevention and control are prolonged. Linyi Fertilizer Network Copyright
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