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近年来,测土配方施肥已成为大田、保护地栽培的重要技术措施,有助于粮食高产、果菜优质、农业经济效益提高。但是,一些测土配肥企业在配肥过程中因选择肥料种类差异,容易造成土壤次生盐渍化,会破坏土壤肥力。一、测土配方施肥不应只是协调氮、磷、钾元素的比例通常用肥料的盐效指数来表示不同肥料种类对增加土壤溶液渗透压的
In recent years, soil testing and formula fertilization has become an important technical measure of field and protected cultivation, contributing to high yield of grain, high quality of fruits and vegetables, and improvement of agricultural economic benefits. However, some soil testing and fertilizer companies in the process of fertilizer due to the selection of different types of fertilizers, easily lead to secondary soil salinization, will destroy soil fertility. First, soil testing and fertilization should not just coordinate the proportion of nitrogen, phosphorus and potassium fertilizers usually salt efficiency index to indicate the different types of fertilizer to increase soil solution osmotic pressure