如何防止和减轻棉田套种食用作物的农药污染王兆信李琼英阎建平（四川省农科院棉花研究所简阳６４１４００）棉花病虫害的化学防治是目前难以取代的有效手段。我省棉区人多地少，棉田间套粮食、蔬菜或饲料作物也在所难免，这就带来一个如何防止和降低农药残留污染、保护人... How to Prevent and Reduce Pesticide Contamination in Intercropping Edible Crops in Cotton Field Wang Zhaoxin, Li Qiongying, Yan Jianping (Cotton Research Institute, Sichuan Academy of Agricultural Sciences, Jianyang 641400, China) Chemical control of cotton pests and diseases is an effective and irreplaceable method. There are so many people in the cotton area in our province that it is inevitable that grain, vegetables or fodder crops will inevitably be set in the cotton fields, thus bringing about how to prevent and reduce pesticide residue pollution and protect people.