磺酰脲类除草剂的降解机制及代谢产物的研究进展

摘要

磺酰脲类除草剂是一类高效,低毒和高选择性的除草剂,该类除草剂能有效防除阔叶杂草,其中有些品种对禾本科杂草也有一定的抑制作用。但同时因其用量低、对哺乳动物低毒以及独特的除草活性等特点而得到广泛应用。因此,了解磺酰脲类除草剂在土壤中的环境行为及归趋对于其科学合理使用、防止作物药害和保护农业生态环境具有非常重要的意义。根据笔者对磺酰脲类除草剂的深入研究,并总结归纳国内外的相关文献报道,对磺酰脲类除草剂的降解机制及其代谢产物的研究进行了综述,最后展望了磺酰脲类除草剂未来的发展趋势。%Sulfonylurea herbicides are a family of high efficiency,low toxicity and high selectivity herbicides which had good prevention and elimination effects on broadleaf weeds and some grass weeds.Sulfonylurea herbicides had been widely used because of its low dosage,low toxicity to humans and animals and the high herbicidal activity.Therefore,understanding the environmental behavior and fate of sulfonylurea herbicides in soil has very important significance for scientific using of sulfonylurea herbicides,preventing crop injury and protection of agricultural ecological environment.This paper reviewed the degradation mechanism and degradation products of sulfonylurea herbicides and outlooked the future trends of sulfonylurea Herbicide.