【摘 要】
：
为探明0.12%五氟磺草胺颗粒剂对直播水稻田杂草的防除效果、持效期、适宜剂量及安全性等,为该农药大面积推广应用提供科学依据,特进行了相关药效试验。结果表明,0.12%五氟磺
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为探明0.12%五氟磺草胺颗粒剂对直播水稻田杂草的防除效果、持效期、适宜剂量及安全性等,为该农药大面积推广应用提供科学依据,特进行了相关药效试验。结果表明,0.12%五氟磺草胺颗粒剂对直播稻田的杂草防除效果显著,在直播水稻播种复水后、杂草萌发高峰至2叶期前,每667m^2用2000-2500g,对禾本科杂草中稗草的防效显著,对莎草科杂草中异型莎草及阔叶草中耳叶水苋、鳢肠等杂草的防效优异,且对水稻生长安全。
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