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随着我国植棉结构的调整,在棉田试用化学除草以减少劳动力的投入。经试验效果理想,可以推广应用。现将试验结果汇总如下:一、试验条件及内容1.试验条件试验地杂草分布均匀,符合试验要求。前茬作物为棉花。4月25日浇地造墒,亩用水量为50方左右。5月5日播种,品种为杂29,行距为60cm。2.试验材料及方法参试药剂比较多,有中除2号、旱草净、乙草胺、扑草净和都尔。共设10个处理,即:35%中除2号可湿性粉剂亩有效成份20克、40克和60克三个处理;30%旱草净乳油亩有
With the adjustment of cotton planting structure in our country, we try out chemical weeding in cotton field to reduce labor input. The test results are ideal, can promote the application. Now the test results are summarized as follows: First, the test conditions and content 1. Test conditions Weeds were distributed evenly, in line with test requirements. The former crop is cotton. April 25 irrigated land, acres of water for 50 or so. May 5 sowing, hybrid variety 29, row spacing of 60cm. 2. Experimental materials and methods More than the test agent, in addition to No. 2, dry grass net, acetochlor, prometryn and Seoul are Seoul. A total of 10 treatment, namely: 35% in addition to the second moyongfenmu active ingredients 20 grams, 40 grams and 60 grams of three treatment; 30% of dry grass Net EC