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农得时(Londax)是美国杜邦公司发明的广谱性高效、低毒、安全的水田用除草剂,对多数阔叶杂草和莎草科杂草具有特效。通化市稻田主要杂草有鸭舌草(Monochoriauaginalis)、眼子菜(Pofamogeton distinctus)、稗草(Echinochloa crus-galli)、萤蔺(Scirpus Juncoides)、节节菜(Rotala indica)、牛毛毡(Eleocharis acilar-is)、碎米莎草(Cyperus iria)异型莎草(Cyperus difformis)、矮慈菇(Sagitta-ria pygmaea)丁香蓼(Ludweiia prostrata)等,其中特别是莎草科杂草的种类多,并且严重地影响水稻产量。近几年我市广泛地连续使用丁草胺、恶草灵、杀草丹、禾大壮等生稗草为主的除草剂,虽然使一年生禾本科杂草逐年减少,但是多年生莎草科和阔叶杂草发杀
Londax is a broad-spectrum efficient, low toxicity and safe paddy herbicide invented by DuPont. It has effects on most broadleaf weeds and sedge weeds. The main weeds in the paddy field of Tonghua City are Monochoria species, Pofamogeton distinctus, Echinochloa crus-galli, Scirpus Juncoides, Rotala indica, Eleocharis acilar-is, Cyperus iria Cyperus difformis, Sagitta-ria pygmaea Ludweiia prostrata, among which there are many species of sedges, And seriously affect rice yield. In recent years, our city has extensively used herbicides such as butachlor, oxacillin, oxacillin, oxadiazole, etc. mainly on barnyardgrass. Although annual grass weeds have been reduced year by year, perennial sedge Broadleaf weeds kill