肥料的经济效益,是指施用每一单位(斤)肥料所能获得具有经济价值的农产品数量。肥料经济效益的大小,涉及很多因素,但与土壤中养分丰缺情况,以及施用量的多少有密切关系。现就磷肥的有效施用条件及合理用量问题总结于下。 The economic benefits of fertilizer refer to the amount of agricultural products that can be economically valued for each unit of fertilizer (kg) applied. The economic benefits of fertilizer involves many factors, but it is closely related to the abundance of nutrients in the soil and the amount of fertilizer applied. Now the effective application of phosphate fertilizer conditions and the amount of the problem is summarized below.