一、有机肥的堆制按传统方法沤制有机肥,不但会使其有效养分含量低,而且消耗大量人力、物力,也不卫生。鸡场、猪场规模化经营时,由于没有处理粪便,往往带来对环境、土壤和蔬菜的污染。北京市在海淀区试制了以鸡粪为主要原料,采 First, the compost of organic fertilizer According to the traditional method of organic fertilizer, not only make its effective nutrient content is low, but also consume a lot of manpower, material resources, nor hygienic. When farms and farms are operated on a large scale, pollution of the environment, soil and vegetables often results from the failure to dispose of the excrement. Beijing Municipality in Haidian District trial to chicken manure as the main raw material, mining