黑龙江省水稻田封闭除草由于多年连续使用吡嘧磺隆、苄嘧磺隆等药剂,导致野慈姑(驴耳菜)、泽泻(水白菜)、雨久花(兰花菜)、宽叶谷精草等阔叶杂草及三棱草等莎草科杂草抗药性增强,危害加重。今年黑龙江省引进了嘧苯胺磺隆(行行清),可以替代20多年一直使用的吡嘧磺隆、苄嘧磺隆 Closed weeding in paddy fields in Heilongjiang Province for many years due to the continuous use of pyrazosulfuron, bensulfuron and other agents, leading wild arrowheads (donkey-ear vegetables), Alisma orientale (water cabbage), rain long flowers Such as broad-leaved weeds and triangular grass and other Cyperaceae weeds resistance increased, increasing the risk. This year, Heilongjiang Province, the introduction of a pyrimidine sulfonamide (OK OK), can replace more than 20 years has been the use of pyrazosulfuron, bensulfuron