CHINESE agriculture relied on organic fertilizer for 4,000years,but since farmers switched to chemical variants a few decades ago,various problems,such as soil degradation,lower crop disease resistance,deterioration i...CHINESE agriculture relied on organic fertilizer for 4,000years,but since farmers switched to chemical variants a few decades ago,various problems,such as soil degradation,lower crop disease resistance,deterioration in the quality of agricultural products,and agricultural nonpoint source pollution,have arisen.What has caused this non-sustainable effi cacy of chemical fertilizers?展开更多
文摘CHINESE agriculture relied on organic fertilizer for 4,000years,but since farmers switched to chemical variants a few decades ago,various problems,such as soil degradation,lower crop disease resistance,deterioration in the quality of agricultural products,and agricultural nonpoint source pollution,have arisen.What has caused this non-sustainable effi cacy of chemical fertilizers?