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通过60 g.L-1五氟·氰氟草油悬浮剂(稻喜)不同浓度的除草田间药效试验,明确其对水稻田杂草的防除效果。结果表明,667 m2用五氟·氰氟草油100 mL,对水50 kg,药后15 d防效最好,总株防效达到86.95%,但各处理的小区总株防效在5%水平和1%水平差异均不显著;对水量40 kg处理的小区在药后30 d对2种杂草的株防效最好,均为100.00%;总株防效与鲜重防效的方差分析可以看出,40 kg对水量处理的小区总株防效与鲜重防效均为100.00%,与其余各小区处理的结果在1%水平差异极显著。结合本地区农户用药习惯,推荐667 m2对水量45 kg为效。各处理未见对作物生长产生不良影响。
The herbicidal efficacy of 60 g · L-1 pentafluorocyanuric acid oil suspension concentrate (Yixi) was evaluated in field experiments of weed control. The control effect on weeds in paddy field was clarified. The results showed that with 100 mL of pentafluorocyanurofurane at 667 m2, the control effect of 50 kg of water on the 15th day after treatment was the best, and the control efficacy of the total strain reached 86.95%. However, the control efficiency of the total plant in each plot was 5% The level and the level of 1% were not significantly different. The best control effect on the two weeds was 100.00% in the area of 40 kg water after 30 d, the variance of total plant control and fresh weight control It can be seen from the analysis that the control effect of the 40 kg total water volume on the total plant population and the control effect of fresh weight and weight are both 100.00%, which is significantly different from the results of other plots treated at 1% level. Combined with the habit of farmers in the region, 667 m2 is recommended for the effect of 45 kg of water. No adverse effects on crop growth were found in all treatments.