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国营建水羊街农场认真摸索秧田化学除草经验,经多年反复试验,总结出水稻秧田期除草以使用昆明农药厂出产的50％杀草丹乳剂效果最好。该场常年以水育秧为主,向来稗草很多,每亩秧田常要七、八个薅秧工,稗子还经常拔不干净。由于稗草多,严重影响秧苗素质,影响产量的提高。前些年曾先后试用除草醚、五氯酚钠等,但除草醚除草效果差,有药害,五氯酚钠效果也不理想,且于人畜禽鱼都不安全。后曾改用从日本进口的稻草莞颗粒剂,价格虽贵,效果很好,但药难买。近年昆明农药厂开
State-owned construction of Sheep Street farms seriously explore the chemical weeding experience seedlings, after many years of repeated testing, summed up the rice seedling weeding to use Kunming pesticide plant produced 50% herbicide Dan emulsion best. The perennial water and seedling-based, barnyard grass has always been a lot, often seven or eight seedlings per acre seedlings, barnyard grass often unplug clean. Because of more than barnyard grass, seriously affect the quality of seedlings, affecting the yield increase. A few years ago have tried herbicide ether, pentachlorophenol sodium, but weeding ether weeding is poor, there is injury, sodium pentachlorophenol effect is not ideal, and in the safety of livestock and poultry. After the switch to rice imported from Japan, Dongguan Wan Granules, the price is expensive, the effect is good, but the drug is hard to buy. In recent years, Kunming Pesticide Factory opened