A: The purpose of Qiu Shiji Fertilizer is to accumulate the nutrition of fruit trees. It should be based on organic fertilizers such as manure, soil, fertilizer, grass and ash, supplemented by chemical fertilizers, so that the combination of soil improvement and support, delay and quick effect complement each other. Fertilizer application should pay attention to the proportion of nitrogen, phosphorus and potassium fertilizer, it is not appropriate to apply too much quick-acting nitrogen fertilizer, otherwise it is easy to trigger late autumn shoots. At the same time, it is necessary to apply trace elements in a targeted manner. The application rate of fertilizer should be determined according to the size of the fruit tree, the nutritional status and the number of fruits. The adult fruit trees are applied with 40-60 kg of organic fertilizer, 0.15 g of urea, 2 to 4 kg of phosphate fertilizer and 0.5 kg of potassium fertilizer.
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