过去一提到污染,人们普遍想到工业污染。其实现代农业同样可以造成污染,而且这种污染对人们的危害同样严重。最近,中国农业科学院土壤肥料研究所提供的一项报告表明:中国北方近一半的县市农村氮肥用量 In the past when it was mentioned pollution, people generally think of industrial pollution. In fact, modern agriculture can also cause pollution, and this pollution is equally detrimental to people. Recently, a report provided by the Institute of Soil and Fertilizer, Chinese Academy of Agricultural Sciences, showed that the amount of nitrogen fertilizer used in rural areas in nearly half of counties in northern China