稗草是水稻田最主要的杂草,它危害范围从南到北非常广泛,普遍发生在秧田、直播田、移栽田等各种栽培方式水稻田,稗草防治一直是水稻田草害防治的最主要难题。目前,水稻田最主要的土壤处理除稗剂有丁草胺、丙草胺,茎叶处理低龄稗草除草剂有莎稗磷、禾大壮、二氯喹磷酸,茎叶处理大龄稗草除草剂有二氯喹磷酸。 Barnyardgrass is the most important weed in paddy field. Its harm range is very extensive from south to north. It is commonly found in paddy field, direct seeding field and transplanted paddy field. The control of barnyard grass has been the prevention and cure of paddy field The most important problem. At present, the main soil treatment in paddy field except barnyardgrass with butachlor, pretilachlor, stems and leaves treatment of young barnyardgrass herbicide with barnyardgrass, Wo Dazhuang, dichloroquine phosphate, stems and leaves of older barnyardgrass herbicide With dichloroquine phosphate.