随着产业结构的调整,保护地蔬菜栽培面积逐年扩大.保护地人工创造的小气候,具有高温高湿的特点,为病虫害的发生及流行提供了适宜的条件;同时,相对封闭的生态环境,农药大量使用,残留于土壤中的农药,改变了土壤原有平衡,导致土壤被污染.近几年,保护地农药应用安全性和土壤中农药残留被广泛关注. With the adjustment of industrial structure, the area of ​​vegetable cultivation in protected areas has been expanding year by year, and the microclimate artificially created in the protected areas has the characteristics of high temperature and high humidity, providing suitable conditions for the occurrence and epidemic of pests and diseases. Meanwhile, the relatively closed ecological environment, In large quantities, the pesticide residues in the soil change the original balance of the soil and lead to soil pollution. In recent years, the safety of pesticides used in the protected areas and pesticide residues in the soil have been widely concerned.