五氟磺草胺为陶氏益农开发和生产的三唑并嘧啶磺酰胺类除草剂,是目前稻田用除草剂中杀草谱最广的品种。它不仅能够防治多种水田杂草,同时对包括磺酰脲类、乙酰辅酶A羧化酶抑制剂类等除草剂产生抗性的稗草也有较好的防效。随着水生杂草抗性的逐年增加,五氟磺草胺的应用也变得更加广阔,备受用户青睐。五氟磺草胺化合物专利在中国的有效期为2017年9月22日。五氟磺草胺2004年在越南和泰国上市,同年获得美国登记,2005年在美国上市,并 Penoxsulam is a triazolopyrimidine sulfonamide herbicide developed and produced by Dow AgroSciences. It is the most widely used herbicide in paddy field. It not only can prevent and control a variety of weeds in paddy fields, but also has good control effects on barnyardgrass which is resistant to herbicides such as sulfonylureas and acetyl-CoA carboxylase inhibitors. With the annual increase of resistance of aquatic weeds, the application of penoxsulam also become more extensive, much favored by users. The patents for penoxsulam compound are valid in China on September 22, 2017. Penoxsulam was listed in Vietnam and Thailand in 2004, was registered in the United States the same year, was listed in the United States in 2005 and