有机肥的利用历史悠久,品种繁多,利用范围广。随着生产责任制的改变,市场经济转型扩大,农村劳动力外出务工不断增多,有机肥的使用量也不断减少。农民种田就依赖于大量使用化肥,致使土壤理化性质不断恶性变化,农产品质量在一些地区不同程度存在隐患。一、回顾历史,正确评价有机肥的 The use of organic fertilizer has a long history, a wide variety, the use of a wide range. With the change of the production responsibility system, the market economy has been transformed and expanded. The rural labor force has been going out for employment and the use of organic fertilizer has also been declining. Farmers rely on the heavy use of chemical fertilizers, resulting in the continuous deterioration of the physical and chemical properties of the soil, the quality of agricultural products in varying degrees in some areas there are hidden dangers. First, review the history, the correct evaluation of organic fertilizer