由于蔬菜生产周期短，病虫害相对较重，农药的施用次数和数量也较大，有毒有害物质在蔬菜中的残留量也较高，对人类的威胁也特别大。那么，在蔬菜生产上，应怎样安全合理地使用农药，生产优质无公害蔬菜呢？一是在蔬菜生产上禁止使用高毒、高残留农药品种，即水胺硫磷、甲胺磷 Due to the short production cycle of vegetables, relatively heavy pests and diseases, the number and quantity of pesticides applied are also large, the residues of toxic and harmful substances in vegetables are also high, and the threat to human beings is also particularly great. So, in vegetable production, how to use pesticides safely and reasonably to produce high-quality pollution-free vegetables? First, prohibiting the use of highly toxic and high-residue pesticide varieties in vegetable production, namely acetochlor, methamidophos