我国田园化学除草在五十年代后期就已经开展。1970年以来,由于在水稻、棉花、小麦等作物大面积化学除草示范取得良好效果,推动了全国化学除草工作韵迅速发展。目前,黑龙江、江苏、上海、浙江、广东、吉林、湖南、湖北、云南、四川、青海等十三个省、市田园化学除草面积约6.500万亩,其中以黑龙江省麦、豆、玉米 Pastoral chemical weeding in China has been carried out in the late fifties. Since 1970, good results have been achieved in the large-scale demonstration of chemical weed control in crops such as rice, cotton and wheat, promoting the rapid development of chemical weed control in the country. At present, the pasturing area of ​​pasture in Heilongjiang, Jiangsu, Shanghai, Zhejiang, Guangdong, Jilin, Hunan, Hubei, Yunnan, Sichuan and Qinghai is about 6.5 million mu, of which, Heilongjiang Province wheat, beans and corn