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通过田间试验,观察62%丁草胺·噁草酮微乳剂对移栽稻田3种主要杂草的防治效果,以及杂草防除后对田间光照、水肥的影响。结果表明:施用药剂后,能有效防除稻田3种主要杂草,对稗草Echinochloa crusgalli(L.)Beauv、异型莎草(Cyperus difformis L.)和鸭舌草Monochoria vaginalis(Burm.f.)的综合密度防效和综合鲜质量防效分别达到88.09%~98.91%和88.06%~98.31%;杂草防除后,田间透光率增加3~4倍,杂草对氮、磷、钾和水分的吸收减少85%以上,水稻增产33.46%~40.04%。
Field experiments were conducted to observe the control effect of 62% butachlor / oxanone microemulsion on the three main weeds in the transplanted paddy field and the effects of weed control on field illumination, water and fertilizer. The results showed that the three main weeds in paddy field could be effectively controlled after the pesticides were applied, and the effects of three pesticides on Echinochloa crusgalli (L.) Beauv, Cyperus difformis L. and Monochoria vaginalis (Burm.f.) The integrated density control efficiency and integrated fresh mass control efficiency reached 88.09% ~ 98.91% and 88.06% ~ 98.31%, respectively. After weed control, the light transmittance in the field increased 3 ~ 4 times, and the weed had a significant effect on N, P, K and water Absorption decreased by more than 85%, rice yield 33.46% ~ 40.04%.