磷酸二氢钾是一种含有磷、钾两种元素的复合肥料。磷在果树体内不仅直接参加磷酸葡萄糖、酶、ATP 的形成,而且还能够促进根对氮和其它元素的吸收。钾在果树体内不直接参加物质形成,但能激化酶的活性,增加树体生命力,促进糖的运转,增加花青素的基质。针对当前生产中偏重于施用氮肥的实际情况,适当增加磷钾肥的用量,对于提高苹果的产量和质量就显得 Potassium dihydrogen phosphate is a compound fertilizer containing both phosphorus and potassium. Phosphorus in fruit trees not only directly participate in the formation of phosphoglucose, enzymes and ATP, but also promote root uptake of nitrogen and other elements. Potassium does not directly participate in the formation of fruit in the body, but can stimulate enzyme activity, increase the vitality of the tree, and promote the operation of sugar, increase the matrix of anthocyanins. For the current emphasis on production of nitrogen fertilizer in the actual situation, an appropriate increase in the amount of phosphorus and potassium for improving the yield and quality of apples appear