In the annual management of fruit trees, the fertilizing work during fruit enlargement is particularly important. At this point, the fruit has changed from a nitrogen trophic period to a sugar vegetative period and requires a large amount of nutrition and water supply. If malnutrition occurs, it will lead to fruit failure. Therefore, it is necessary to ensure that there is sufficient water and nutrients during fruit enlargement to meet the physiological needs of fruit development, so that the fruit quickly expands, the color is good, and fruit drop and fruit cracking are reduced.
During the rapid expansion of the fruit, excessive nitrogen is harmful, it can induce the occurrence of bitter pit disease, and also reduce the rate of fruit coloring. Only through rational fertilization, coordinate the proportions of various required elements, increase the light and efficacy, and the metabolic function of fruit trees to ensure the need for fruit enlargement. According to the physiological and nutritional characteristics of the fruit enlargement period, the spraying of fruits and sedatives makes the stem thicker, increases the amount of nutrient delivery, increases the fruit's enlarging vitality, enhances the degree of fruit coloration, preserves fruits, strengthens fruit, and prevents fruit drop. At the same time, the corresponding addition of potash fertilizer, calcium fertilizer, supplementation of carbohydrate accumulation and transportation to the fruit, ensure the need for nutrients during fruit enlargement, increase production, and improve quality.
During the rapid expansion of the fruit, excessive nitrogen is harmful, it can induce the occurrence of bitter pit disease, and also reduce the rate of fruit coloring. Only through rational fertilization, coordinate the proportions of various required elements, increase the light and efficacy, and the metabolic function of fruit trees to ensure the need for fruit enlargement. According to the physiological and nutritional characteristics of the fruit enlargement period, the spraying of fruits and sedatives makes the stem thicker, increases the amount of nutrient delivery, increases the fruit's enlarging vitality, enhances the degree of fruit coloration, preserves fruits, strengthens fruit, and prevents fruit drop. At the same time, the corresponding addition of potash fertilizer, calcium fertilizer, supplementation of carbohydrate accumulation and transportation to the fruit, ensure the need for nutrients during fruit enlargement, increase production, and improve quality.
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