有机肥料不仅含有植物所需的大量营养元素,而且还含有多种微量元素,是一种完全肥料。有机肥中所含有的有机物质又是改良土壤、培肥地力不可替代、不可缺少的物质。长期施用有机肥可增加土壤微生物数量,提高土壤有机质含量,改善土壤理化性状。有机肥料在分解过程中形成的腐殖质 Organic fertilizer not only contains a large number of nutrients required by plants, but also contains a variety of trace elements, is a complete fertilizer. Organic fertilizer contains organic matter is to improve the soil, fertility fertility is an indispensable, indispensable material. Long-term application of organic fertilizer can increase the amount of soil microorganisms, increase soil organic matter content and improve soil physical and chemical properties. Humus formed during the decomposition of organic fertilizers