近年来,我国玉米种植面积的稳步增长,使得玉米除草剂成为国内外农药生产企业争相开发与生产的热点品种。玉米田除草剂按照玉米生长的三个时期分为苗前封闭性除草剂、苗后茎叶处理除草剂和玉米行间除草剂。目前国内玉米田除草剂以乙草胺、莠去津、百草枯、烟嘧磺隆、2,4-D丁酯等10余种产品为主。通常麦收后首先在玉米田使用 In recent years, the steady increase of corn acreage in China has made corn herbicide a hot species competing with the domestic and foreign pesticide manufacturers. Corn field herbicide in accordance with the three periods of corn growth is divided into pre-emergence closed herbicides, stems and leaves after treatment of herbicides and corn herbicides. At present, herbicides in domestic corn fields are mainly acetochlor, atrazine, paraquat, nicosulfuron and 2,4-D butyl ester. After the wheat is harvested, it is usually used in corn field first