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1. Remove the cold weather covering in time. Strawberries are temperate and evergreen plants. When the soil temperature is between 1°C and 2°C, the root system begins to grow. In production, generally when the temperature is around 5°C, it is necessary to remove the winter-proof and cold-proof materials in time, pick up the leaves and other sundries, and use a film-covered strawberry. After the film is uncovered, the work of hardening the seedlings must be done to prevent freezing in the early spring.
2. In time loose soil, seedlings. After cultivating in spring, timely cultivating loose soil and increasing soil temperature, cultivator should be shallow and not deep enough to prevent the soil blocks from pressing down seedlings. At the same time, it is necessary to do a good job of seedlings and to remove the smoked side vines early.
3. Apply fertilizer in time. After the beginning of spring, the temperature is getting higher and the plants begin to grow. Applying fertilizer in time can increase the number of effective buds and increase the fruit setting rate. As strawberry roots are shallow and sensitive to fertilizers, fertilization should be based on urea and compound fertilizers. The amount of fertilization should not be too large. Generally, 5 to 6 kg of urea and 10 to 15 kg of compound fertilizer should be applied. In addition, the 0.2% potassium dihydrogen phosphate solution was used as a foliar spray during the fruiting period, which has a good effect on improving the quality and increasing the yield.
4. Sparse flowers and thinnings in time. Inflorescences on the fresh stems of strawberry usually have 10 to 30 flowers; buds consume excessive nutrients, plant growth is weak, and small fruits and deformed fruits increase. Therefore, it is necessary to carry out sparsely fruit thinning and fruiting in time so that 2 to 3 inflorescences per plant can be retained, and 3 to 5 fruit can remain in each inflorescence.
5. Timely control of pests and diseases. The diseases that damage strawberries mainly include leaf spot, gray mold, powdery mildew, bud blight, and viral diseases; insect pests include aphids, underground pests, and red spiders, etc. The production must be strengthened in terms of forecasting, discovery, and timely prevention and treatment.
Strengthening spring management is the key to promoting high quality, early maturity and increased yield of strawberries. Specific measures must be done in a timely manner.