Spring tube strawberries should pay attention to "five in time"

Strengthening spring management is the key to promote the high quality, early maturity and yield of strawberries. Specific measures should be taken to do a good job of "five in time". 1. Remove the cold cover in time. Strawberry is an evergreen plant in temperate zone. When the soil temperature is 1 ℃ ~ 2 ℃, its root system begins to grow. In production, generally when the temperature is about 5 ℃, it is necessary to remove the overwintering objects in time, pick up sundries such as leaves, use strawberries covered with thin film, and do a good job in seedling refining after uncovering the film to prevent early spring from freezing. two。 Loosen the soil and seedlings in time. Ploughing and loosening the soil in time after the beginning of spring to increase the soil temperature, the ploughing should be shallow rather than deep, to prevent the soil from pressing the seedling heart. At the same time, it is necessary to do a good job of seedlings and get rid of the side vines as soon as possible. 3. Fertilize in time. After the beginning of spring, the temperature is getting higher and higher and the plant begins to grow. Topdressing in time can increase the number of effective buds and increase the fruit setting rate. Because strawberry has shallow roots and is sensitive to fertilizer, urea and compound fertilizer should be applied mainly, and the amount of fertilizer should not be too large. It is suitable to apply urea 5kg / mu and compound fertilizer 10kg / mu. In addition, 0.2% potassium dihydrogen phosphate solution was used as foliar spray during flowering and fruiting period, which had a good effect on improving quality and increasing yield. 4. Timely thinning of flowers and fruits. The inflorescences on the new stems of strawberries usually have 10 to 30 flowers; the buds consume too much nutrients, the plant growth is weak, and the number of small fruits and abnormal fruits increases. Therefore, flower thinning and fruit thinning must be carried out in time, so that each plant can retain 2-3 inflorescences and 3-5 fruits per inflorescence. 5. Timely prevention and control of diseases and insect pests. The main diseases harmful to strawberry are leaf spot, gray mold, powdery mildew, bud blight, virus; insect pests include aphids, underground pests and red spiders.