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为探明6%五氟·氰氟草油悬浮剂对直播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,特进行了其田间应用效果试验。结果表明,6%五氟·氰氟草油悬浮剂对直播稻田杂草的防除效果显著,在杂草叶龄2~4叶期,每667m2用药100~140g,对禾本科杂草中的稗草、千金子,莎草科杂草中的异型莎草,阔叶草中的耳叶水苋、鳢肠等,均有较好的防除效果,且对水稻生长安全。
In order to find out the prevention and control effect, persistence period, appropriate dosage and safety of 6% pentafluorocyantefloxacin SC on weeds in direct seeding rice fields, we provided a scientific basis for the large-scale popularization and application of this pesticide. Application effect test. The results showed that 6% Pentafluron SC was significantly effective in control of weeds in direct-seeded rice fields. The weeds in weeds were weighed 100-140 g per 667 m 2 in the 2-4 leaf stage of weeds, Grass, Qianjinzi, Cyperaceae weeds in the Shady, broad-leaf grass in the leaves of Amaranthus, Shuchang, etc., have better control effect, and the safety of rice growth.