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磷灰石粉的利用,除在工业上可制成过磷酸钙外,还可以直接应用于农业生产上。农业利用的方法有几个途径:(1)直接施用。(2)把磷灰石粉与厩肥混堆后施用。在理论上磷灰石粉与厩肥混堆以后,因受微生物的生化作用和腐殖酸的作用,即成为植物良好的磷素肥料。(3)把磷灰石粉施于绿肥田中。通过绿肥的分解与吸收利用,改变其形态,俟绿肥压青后,就成为较易为后作物吸收的形态,这样就间接地提高了磷灰石粉的肥效。
Apatite powder utilization, in addition to the industry can be made of superphosphate, but also can be directly applied to agricultural production. There are several ways of agricultural use: (1) direct application. (2) apatite powder and manure mixed after the application. In theory, after apatite powder and manure mixed, due to the biochemical effects of microorganisms and the role of humic acid, that is, a good plant Phosphate fertilizer. (3) apatite powder applied to the green manure field. Through the decomposition and absorption of green manure utilization, change its shape, green manure green pressure, it becomes easier for the post-crop absorption form, thus indirectly increasing the fertilizer efficiency of apatite powder.