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1980年以来,美国杜邦有限公司相继开发了巨星、阔叶散等磺酰脲类除草剂,此类药剂用量低、活性高,是历来除草剂无可比拟的,其每公顷活性物以克计算,为2,4-D丁酯的1％～2％,打破了传统农药品种的用药界限,从而使除草剂的发展进入了“超高效”时代。这类药剂被植物根、茎、叶和嫩芽吸收,进入植物体内,上下传导,表现出对植物细胞分裂的高度专化性抑制效应。我国自1983年以来也相继合成,命名为甲黄隆、绿黄隆,不少厂家已批量生产。我省人少地多,农田管理粗放,杂草危害严重,为探明应用此类药剂防除一年一熟制春麦田杂草的可能性,近年来引进了甲黄隆、绿黄隆等,进行田间药效试验,取得了一定成效。现将甲黄隆的初步研究结果报道如下。材料与方法一、供试材料:1.药剂:25％甲黄隆可湿性粉剂,沈阳化工研究院农药室提供;10％甲黄隆可湿性粉剂,上海中西药厂与溧阳化工厂提供;72％2,4-D丁酯乳油,沈阳军区旅大化工厂产品。
Since 1980, DuPont Co., Ltd. of the United States have successively developed sulfonylurea herbicides such as Superstar and Kadsura, which have low dosage and high activity and are unparalleled in herbicides. The activity per gram of active substance is calculated in grams , Which is 1% -2% of 2,4-D butyl ester, breaking the limitation of the traditional pesticide varieties, making the development of herbicides into “super-efficient” era. Such agents are absorbed by plant roots, stems, leaves and shoots, enter the plant body and conduct up and down, showing a highly specific inhibitory effect on plant cell division. China has also been synthesized since 1983, named jiahuanglong, green Huanglong, many manufacturers have been mass production. In order to find out the possibility of applying such agents to control weeds in spring wheat fields in a year, we have introduced Jiahuang Long, Green Huang Long, etc. In recent years, Field efficacy trials, and achieved some success. The preliminary results of jasmine are reported below. MATERIALS AND METHODS I. Test Materials: 1. Pharmacy: 25% Methionone WP, provided by Shenyang Chemical Engineering Research Institute; 10% Methionine WP, Shanghai Chinese and Western Pharmaceutical Factory and Liyang Chemical Factory; 72 % 2,4-D butyl EC, Shenyang Military Region Luda Chemical Products.