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稻田眼子菜是一种繁殖力强,蔓延迅速的恶性杂草。我们曾在云南省蒙自县草坝农场对秧田眼子菜的药剂防除作了一系列试验,现把试验结果报道如下。 试验方法:水稻播种后22—43天,用毒土法将药剂施于秧田内,小区面积6平方米或16平方米,重复三次,随机排列;施药后半月检查药效,每小区对角线对三点,每点1平方尺,调查眼子菜残存叶片数,水稻秧苗株高、根长和风干重,不施药为对照,比较除草效果和药害情况;施药量系指商品量。
Potamogeton mandarin is a reproductive, rapid spread of the vicious weeds. We have made a series of experiments on the chemical control of seedlings in the seedling plant at Caoba Farm in Mengzi County, Yunnan Province. The test results are reported below. Test methods: 22-43 days after sowing rice, poison soil method applied to the seedling field, the plot area of 6 square meters or 16 square meters, repeated three times, randomly arranged; half a month after administration to check the efficacy of each district diagonal Line pairs of three points, each square of 1 square feet, the number of leaves remaining in the eye plant investigation, rice seedling plant height, root length and air-dried weight, no application as a control, weeding effect and the injury situation; dosage refers to the commodity the amount.