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根据联合国粮农组织的统计世界粮食增产有约50％是增施化肥的结果。但大量频繁地施用化学肥料,不仅增加了农业的投入,严重污染环境,而且破环了土壤的良性结构以及其中微生物的自然群体,造成土壤板结,肥力下降。尤其是近年来氮肥用量的普遍增加,土地高水平的粮食产出,我国绝大部分土壤严重缺磷缺钾,已成为粮食生产的制约因素。另一方面目前农业生产上施用的各种肥料——化肥、有机肥以及微生物制剂都是只强调单方面的作用,或是强调化肥,或是强调微生物剂,往往顾此失彼,忽视了把化学肥料、有机肥以及微生物制剂的有机结合,不能圆满地解决农业生产中的这些实际问题,急需开发
According to the statistics of the UN Food and Agriculture Organization of the United Nations, about 50% of the world’s food production increase is the result of adding chemical fertilizers. However, a large number of frequent application of chemical fertilizers not only increases the input of agriculture, seriously pollutes the environment, but also destroys the benign structure of the soil and the natural population of microorganisms therein, resulting in soil compaction and reduced fertility. Especially in recent years, the general increase in the amount of nitrogen fertilizer, high level of land grain output, the vast majority of China’s soil is seriously deficient in phosphorus and potassium, has become a limiting factor in food production. On the other hand, fertilizers, organic fertilizers, and microbial preparations currently used in agricultural production only emphasize unilateral effects, or emphasize chemical fertilizers or emphasizing microbial agents. They often miss out on each other and neglect to use chemical fertilizers. The organic combination of organic fertilizers and microbial preparations cannot satisfactorily solve these practical problems in agricultural production and urgently require development.