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该文研究了6%氰氟·五氟磺可分散油剂等药剂对直播稻田杂草的防除效果。结果表明:以6%氰氟·五氟磺可分散油剂防除直播稻田杂草效果最佳,对稗草、千金子、异型莎草等单双子叶杂草高效,速效性强,持效性好,并且在设计剂量范围内对水稻安全。建议该药剂在直播水稻田杂草2~4叶期茎叶喷雾,施药前放干田水,药后1~3d覆水并保水5~7d,推荐使用剂量为有效成分60~120g/hm2。
This paper studied the control effects of 6% cyanofluoro-pentafluorosulfuron dispersible oil on the weeds in direct-seeded rice fields. The results showed that 6% cyanofluoro pentafluorosulfuron dispersible oil was the most effective in control of weeds in direct-seeded rice fields. It was effective, quick-acting and long-lasting for both monocotyledonous and monocotyledonous weeds such as barnyardgrass, Well, and safe for rice in the design dose range. It is suggested that the medicament should be sprayed on stems and leaves of 2-4 weeds in the direct-seeded paddy fields, and the field water should be drained before application. After 1 to 3 days of treatment, the plants are covered with water and kept for 5 to 7 days. The recommended dosage is 60-120 g / hm2.