| Agricultural non point source pollution is the main factor to the environmental pollution in rural China now with the development of economy in China. It has gained the attention of the government and scientist in the country, and also is the main factor to restrain the agricultural sustainable development. At present, the reasons are list as follow: chemical fertilizer and pesticide and excessive application; Livestock and aquatic products pollution; soil erosion; a majority of strews abandoned; agricultural plastic film pollution. It has the characteristics of dispensability, univ
ersality and randomness, which have negative effects on soil, water and air. In terms of biological chemistry and physics and agricultural management, this paper proposes countermeasures to control agricultural non-point source pollution, protect the environment, and promote the sustainable development of agriculture. |