自上世纪九十年代初,我国普遍应用推广化学除草,表现出省力、省时、经济、快速、高效,全面淘汰了祖祖辈辈袭用的人工劳作,彻底降服了草荒灾害,为保护农业安全生产、实现连续丰收提供了重要保障。与此同时,因无序、不科学应用等因素,也产生一定负面影响,杂草抗性就是其中之一。近30年的时间,国内农田杂草抗性从无到有,从轻到重,日趋蔓延恶化,已在多种作物、多种杂草、多种药剂间发生并已发展到一定程度,出现防效降 Since the early nineties of last century, we popularized the use of chemical weed control in our country, showing labor-saving, time-saving, economical, rapid and efficient, completely eliminating the manual labor of ancestors and completely overcoming the shortage of grass and avoiding disaster. In order to protect agricultural safety, Continuous harvest provides an important guarantee. At the same time, weed resistance is one of the factors that has some negative effects due to disorder and unscientific application. In the past 30 years, the weed resistance in domestic farmland has grown from scratch. From light to heavy, it has become more and more widespread. It has occurred in a wide range of crops, weeds and many kinds of pharmaceuticals and has developed to some extent. Anti-drop