保护地蔬菜病虫害发生及土壤农药残留污染状况

Developing on occurrence of pests and diseases and pollution of soil in vegetable greenhouses

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.

Greenhouse production of vegetables has been developed rapidly in China during the past decades.Compared to field conditions,greenhouse provides more favorable climate for fast reproduction of pests and diseases that result in extensive and frequent applications of pesticides.some changes will happen in soil properties,and the equilibrium was destroyed.the secure application and residue of pesticides are comprehensively concerned in greenhouse in recent years.