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化学肥料的发展,使粮食产量的提高产生了一个飞跃。但是,化肥的盲目施用,不但提高了农产品的成本,而且由于单一施用,破坏了土壤养分的相对平衡。因此,自1981年以来,人们开始研究配方施肥方法。实践证明,配方施肥是既能提高化肥的利用率,又能增产、提高农产品品质,进而提高农业的经济效益,使施肥技术由“看天、看地、看庄稼”的
The development of chemical fertilizers has brought about a leap in the improvement of grain output. However, the blind application of chemical fertilizers not only increases the cost of agricultural products, but also destroys the relative balance of soil nutrients due to a single application. Therefore, since 1981, people began to study the method of formula fertilization. Practice has proved that formula fertilization can not only improve the utilization of chemical fertilizers, but also increase production and improve the quality of agricultural products, thereby increasing the economic benefits of agriculture, so that fertilization technology from “to see the weather, see, see crops”