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为了摸索化学除草剂对早稻、杂交稻秧田灭草效果,我所在1979年连晚秧田上进行了试验,取得了较好效果,在此基础上去年上半年又继续对早稻、单季杂交稻秧田进行了试验,同样取得了较理想的灭草效果。而且还起到了增产作用,为今后大田推广化学除草剂摸到了一些规律。我们采用25％除草醚可湿性粉剂和50％扑草净可湿性粉剂两种,试验区早稻每个小区为0.018亩,分别每亩设除草醚300克、
In order to explore chemical herbicides on early rice, hybrid rice seedling field weed control effect, I was late even in 1979 on the trial of seedling, and achieved good results, on the basis of the first half of last year and continue to early rice, single-season hybrid rice seedling Experiments were conducted, and the ideal herbicidal effect was also obtained. But also played a role in stimulating production. In order to promote chemical herbicides in the field, some laws were found. We use 25% of weeding ether WP and 50% of prometryne WP two kinds of test area of early rice each plot is 0.018 acres, respectively, weeding ethephon 300 grams,