0.11苯噻酰草胺·苄嘧磺隆颗粒剂防除水稻抛秧田杂草效果及对田间水肥的影响

摘要

In order to provide reference for chemical weed management in seedling-throwing rice fields, trials were conducted to evaluate the effects of 0.11% mefenacet + bensulfuron-methyI granules (pesticide-fertilizer mixture) on controlling weeds in seeding-throwing rice fields and on yield of rice. The results showed that 0.11% mefenacet + bensulfuron-methyI granules had good control effects on Echinochloa crusgalli(L.)Beauv,Cyperus difformis L.,Monochoria vaginalis (Burm. F.) in seedling-throwing rice fields,with 97.28%~100.00% overall control effects, and significantly higher than 50% acetochlor EC and 10%bensulfuron-methyI WP. The application of 0.11% mefenacet + bensulfuron-methyI granules effectively improved the light and water-fertilizer conditions in fields, with significant yield-increasing effect.%通过田间试验研究了0.11%苯噻酰草胺•苄嘧磺隆颗粒剂(药肥混剂)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。结果表明,0.11%苯噻酰草胺•苄嘧磺隆颗粒剂(药肥混剂)对水稻抛秧田的稗草[Echinochloa crusgalli(L.)Beauv]、异型莎草(Cyperus difformis L.)、鸭舌草[Monochoria vaginalis(Burm.F.)]等均具有良好的防治效果,综合防效达97.28%~100.00%,显著优于对照药剂50%苯噻酰草胺WP和10%苄嘧磺隆WP。0.11%苯噻酰草胺•苄嘧磺隆颗粒剂(药肥混剂)施用后,有效改善了田间的光照和水肥条件,增产效果显著。