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玉米田主要杂草有马唐、稗草、狗尾草、牛筋草、反枝苋、马齿苋、打碗花、茼麻、苍耳、藜、曼陀罗等。国内常用的玉米田除草剂有乙阿合剂、莠去津、乙草胺、都尔、拉索、丁草胺、除草通等。其中莠去津是优良的玉米田除草剂,多年来在生产中应用,具有杀草谱广、残效期长等特点,尤其对双子叶杂草药效较高,但对马唐的防治效果一般。由于其残效期长,很容易对后茬小麦产生影响。田间应用莠去津与乙草胺、都尔等混用,除提高除草效果外,还可避免对后茬作物产生药害。
The main weeds in corn fields are crabgrass, barnyardgrass, Setaria viridis, tendon grass, Amaranthus retroflexus, purslane, bowl flower, velvetleaf, cocklebur, quinoa, mandala and so on. Common domestic corn herbicides are B Arab mixture, atrazine, acetochlor, are Seoul, cable, butachlor, weed and so on. Atrazine is an excellent herbicide for corn field and has been used in production for many years. It has the characteristics of broad spectrum of herbicides and long residual period, especially for the efficacy of dicotyledonous weeds. However, . Because of its long residual period, it is easy to have an impact on the wheat crop. Application of atrazine in the field with acetochlor, areal and other mix, in addition to improve the weeding effect, but also to avoid the crop after the crop injury.