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通过田间小区试验验证了47%氯吡·丙·异可湿性粉剂对水稻旱直播田杂草的防效及对水稻的安全性。结果表明:药后15、45 d,47%氯吡·丙·异可湿性粉剂705~1 410 g a.i./hm~2播后苗前喷雾处理后对稗属杂草、千金子、马唐、鳢肠、耳叶水苋、异型莎草、碎米莎草等杂草的株防效和鲜质量防效均达90%以上,水稻的株高和茎蘖数与人工除草处理无显著差异;收获时测产,47%氯吡·丙·异可湿性粉剂705~1 410 g a.i./hm~2播后苗前喷雾处理后,水稻的有效穗数、穗粒数和理论产量与人工除草处理无显著差异。47%氯吡·丙·异可湿性粉剂705~1 410 g a.i./hm~2播后苗前喷雾处理可有效防除水稻旱直播田多种杂草,对水稻安全。
The control effect of 47% clopidogrel and iso-WP on weeds in direct seeding rice field and its safety to rice were verified by field plot experiments. The results showed that after spray treatment of 15, 45 days and 47% of clopidogrel and propylparaben WP after 705 ~ 1410 g ai / hm ~ 2 after spraying, the weeds of Echinochloa crusgalli, The control effect and fresh mass control efficiency of weeds such as Chinese cress intestine, Chinese materia medica, clover leaf, weed, sedge and other weeds were over 90%. There was no significant difference between plant height and tiller number and artificial weed control. At the time of harvesting, the effective spikes, grains per spike and theoretical yield of 47% clopidol · WP · WP were higher than those of artificial weeding treatment No significant difference. 47% clopidol · WP · different wettable powder 705 ~ 1 410 g a.i./hm~2 after sowing seedling spray before spraying can effectively control a variety of dry weedy rice fields weeds, rice safety.