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五二扑是以五氯酸钠、二甲四氯、扑草净为主要成分的混合药剂,是防治水田恶性杂草——眼子菜的一种新药剂。该药药效快,除草效果好,无药害,施药三天后除草效果达50％。1984年我们在辽阳市灯塔县单庄子乡单庄子村丁金海的承包田里搞了施药试验,眼子菜的死叶率达78％。试验表明,用五二扑防治眼子菜,应在水稻有效分蘖至拔节前施药,也就是在眼子菜的叶片由红色转绿色时,
Fifty flutter flocculant is sodium pentachloride, metformin, prometryn as the main component of the mixed agent, is a control of paddy field weed - a new kind of ophthalmic agent. The drug is effective, herbicidal effect is good, no phytotoxicity, herbicidal effect up to 50% after three days of application. In 1984, we conducted a pesticide trial in the contracted farm of Dingjinhai, Zhuangzi Village, Shanzhuangzi, Dengzhuang County, Liaoyang City. The dead leaf rate of Zizyphus rutila was 78%. Experiments show that the prevention and treatment of eye drops with fifty-two flocculent should be tiller effective in rice before jointing, that is, when the leaves of the eye plant turn from red to green,