1.蔬菜的污染问题突出,是蔬菜质量不合格的重要原因农药、化肥的不合理使用是蔬菜生产中的主要污染源。我国投入市场的农药品种已达200种左右,2007年全国农药需求总量(有效含量)预计为29.72万t。农药是蔬菜的敌人吗?实际情况是,农药每年为我国挽回蔬菜损失480亿kg。 1. Vegetable pollution problems are outstanding, vegetable quality is an important reason for unqualified pesticides, irrational use of fertilizers is the main source of pollution in vegetable production. There are about 200 pesticide varieties put into the market in China. In 2007, the total amount of pesticide demand (effective content) in China is estimated to be 297,200 t. Is pesticide the enemy of vegetables? The actual situation is that pesticides save 48 billion kg of vegetables each year for our country.