How to promote early ripening and high yield of strawberries due to the soaring price of strawberries near the New year

Strawberry is very strict with the environment, when conditions are suitable, it can grow indefinitely; when conditions are unfavorable, it can quickly dormancy. If the soil is dry and lack of fertilizer, the temperature is too low, the seedlings are thin or grow too vigorously, the flower buds are difficult to form, or delayed, affecting the maturity, yield and quality. Only by optimizing the environment and improving cultivation methods can strawberry be promoted to mature, yield and yield.

Picking old strawberry leaves

First of all, to apply enough base fertilizer, see seedlings topdressing. Generally, 4000 kg of decomposed farm manure or 100 kg of bio-organic compound fertilizer shall be applied per mu, or 20-25 kg of high-content inorganic compound fertilizer shall be used as base fertilizer. Strawberry seedlings grow well, generally only phosphorus and potassium fertilizer, that is, spraying 0.2% potassium dihydrogen phosphate 2-3 times. Poor growth, the results of the peak period to strip or hole application of 15-20 kg compound fertilizer or urea 10 kg. At the same time, it is advocated to apply Huimanfeng active liquid fertilizer, spraying 50 kg of clear water 2-3 times per mu with 100 ml. If clean water manure is applied, it is necessary to prevent environmental pollution and prevent fresh fruit festering.

Second, to adjust temperature humidity, break sleep. The optimum temperature for strawberry flowering period is 10-20℃. When it is lower than 10℃ or higher than 35℃ at noon on a sunny day, the fertilization is poor and abnormal fruit is formed. The critical temperature of dormancy is below 35℃. - At 1℃, plants are frozen and pistils are damaged. Strawberry waterlogging tolerance is not tolerant, the best relative humidity 60-70%, that is, soil moisture content is 80% of the maximum field water capacity. For this reason, first, we should implement three-film covering, namely plastic film, greenhouse film, and then add small shed film. Second, when it is high temperature, open the waist film for ventilation on sunny days, and open the two ends of the film for ventilation on rainy days. 3. In the condition of continuous high temperature and drought, small ditch irrigation was used to conduct moisture management, so that strawberry flower bud differentiation could be carried out early and effectively under normal temperature and humidity conditions.

Third, auxiliary pollination, plant control and fruit control. Strawberries are mainly self-pollinated, but poor insemination will produce abnormal fruits or small fruits with poor maturity. In order to achieve large fruit quality, first, artificial pollination should be carried out from 10 a.m. to 3 p.m. every day during flowering period. The second is to put boxes of bees in each greenhouse to assist pollination. Third, we must control a certain amount of fruit, generally only about 20 fruits per plant, redundant young buds, small fruits should be often thinned. Fourth, it is necessary to control the plants, and only 2-3 new seedlings are left for each plant.

Fourth, we should often pick old leaves to prevent pests. Strawberry growth process, there are old residual and pest damage leaves at any time, common diseases are virus disease, gray mold, leaf spot disease, powdery mildew, etc., pests are aphids, red spiders, etc. Prevention methods, one is to control temperature and humidity and strawberry seedlings long. The second is to remove the leaves damaged by diseases and pests at any time. Third, chemical pest control, insect pests optional stone sulfur mixture, Wan Chongling, quick-acting phosphorus and so on. For diseases, polyoxygen, K crop sterilization and repair solution, and Sole time can be selected.