Strawberry is a perennial herb that requires significant nutrients from the soil to thrive. Proper fertilization is essential for its healthy growth and high yield. The base fertilizer should be applied at the beginning of the growing season, typically around 5000 kg of organic manure combined with nitrogen, phosphorus, and potassium to meet the plant's basic nutritional needs. If the base fertilizer is insufficient, additional top-dressing should be done based on the plant's development stage throughout the season.
There are three key periods for top-dressing strawberries. The first occurs before flowering. In early Spring, once the plants start to grow, it's important to provide adequate nutrients for blooming. At this time, applying about 10 kg of urea and 25 kg of superphosphate helps supply the necessary elements for flower development.
The second period is after fruiting. Once the plants have produced a large number of fruits, they often become nutrient-deficient. To restore their vitality, encourage new leaf and root growth, and support the formation of flower buds for the next season, it's recommended to apply 10–15 kg of urea, 15–20 kg of superphosphate, and 7.5–10 kg of potassium chloride.
The third critical period is during the bud differentiation phase. This is when the flower buds begin to form, so it's crucial to ensure the plant has enough phosphorus and potassium to support healthy growth and proper bud development. A small amount of nitrogen can also be added to maintain balanced nutrition.
This advice comes from "Modern Fertilization Collection" by Zuo Guangsheng, a valuable resource for modern agricultural practices. By following these fertilization guidelines, growers can significantly improve the health and productivity of their strawberry crops.
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