22%草无影可湿性粉剂防除水稻田杂草试验初探

Effects of Four Different Concentration of 22% Caowuying WP on Controlling Weeds in Rice Fields

采用22%草无影可湿性粉剂进行水稻田杂草防除试验,结果表明：25～30g/667m^2剂量处理效果最佳,施药时期为水稻秧苗插秧后7d左右,在试验计量范围内对水稻生长安全.

Four different concentrations of 22% Caowuying WP were tested to investigate the controlling weeds＇ effect in the rice field. The results showed that the controlling effect of the treatment applying 25-30 g/667m^2 was the best among the tested treatments, and the optimum application time was about 7d after transplanting rice seedlings, and the tested concentration of 22% Caowuying WP did not affect rice growth.