1, promptly remove the cold cover. Strawberries are temperate long green plants. When the soil temperature is 1 to 2°C, the root system begins to grow. Generally when the temperature is around 5°C, it is necessary to remove the winter-proof and cold-proof materials in time, and pick up the leaves and other debris. After the film is covered by the mulching film, it is necessary to pay attention to the hardening of the seedlings to prevent the seedlings from freezing in the early spring.
2, timely loose soil and seedlings. After cultivating in spring, timely cultivating and loosening soil should be adopted to increase the temperature of the soil. The cultivator should not be too deep, and it should be avoided when cultivating the cultivator.
3, timely fertilization. The temperature in early spring is getting higher and the strawberries begin to grow. Timely top dressing can increase effective inflorescences and increase fruit setting rate. Because strawberry roots are shallow and sensitive to fertilizers, fertilization should be based on urea and compound fertilizers. The amount of fertilizer should not be too large. Generally, 3 to 6 kg of urea per mu and 10 to 15 kg of compound fertilizer should be applied. In addition, during the fruiting period, the 0.2% potassium dihydrogen phosphate solution was used for foliar dressing to significantly increase the yield and quality.
4, timely sparse flowers and thinning fruit. The flower buds that are drawn from the new stems of strawberries generally have 10 to 30 flowers. Too many buds will consume too much nutrients, causing the plants to grow weak, and small fruits and malformed fruits to increase. Therefore, sparse fruit should be sparsely flowered, and 2 to 3 inflorescences should be kept in each plant, and 3 to 5 fruit should be kept in each inflorescence.
5, timely control of pests and diseases. The diseases and insect pests that damage the strawberries mainly include leaf spot disease, gray mold, powdery mildew, bud blight, virus disease and aphids, red spiders, and underground pests. The production must be strengthened with forecasting and timely control.
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