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通过田间试验研究10%乙草胺.苄嘧磺隆WP对水稻抛秧田杂草的控制效果和对水稻产量的影响,为水稻抛秧田草害的化学防控提供依据。试验结果表明,10%乙草胺.苄嘧磺隆WP对水稻抛秧田的稗草[Echinochloa crusgalli(L.)Beauv]、鸭舌草[Monochoria vaginalis(Burm.F.)]、异型莎草(Cyperus dif-formis L.)均有良好的防治效果,用量为60～120 g(a.i)/hm2的10%乙草胺.苄嘧磺隆WP对杂草的综合鲜重防效和综合密度防效分别为86.64%～99.08%、89.88%～99.44%,优于对照药剂50%乙草胺EC和10%苄嘧磺隆WP。10%乙草胺.苄嘧磺隆WP增产效果优于对照药剂,在水稻抛秧田具有良好的推广前景。
Field experiments were conducted to study the effects of 10% acetochlor, bensulfuron-methyl WP on weed control in paddy field and its effect on rice yield, which provided the basis for chemical control of paddy field. The results showed that 10% acetochlor and bensulfuron-methyl WP were effective against barnyardgrass [Echinochloa crusgalli (L.) Beauv], Monochoria vaginalis (Burm.F.), Cyperus dif-formis L.) with 10% acetochlor in an amount of 60 ~ 120 g (ai) / hm2 Bensulfuron-methyl WP Integrated Weed Control and Integrated Density The efficacies were 86.64% -99.08% and 89.88% -99.44%, respectively, which were better than those of the control agents 50% acetochlor EC and 10% bensulfuron-methyl WP. 10% acetochlor. Bensulfuron methyl WP yield better than the control agent, rice paddy field has a good promotion prospects.