硫酸脱绒水选棉种,我场在1974年试验的基础上,去年全面推广,并进行河泥育苗和直播对比试验。通过两年来的实践,我们认为,采用这种方法选种,既节省劳力,提高棉种质量,又能加速良种繁殖,增加棉花产量,这是选取棉花良种的新方法,也是棉花增产的一条途径。一、脱绒水选棉花的特点 Sulfuric acid velvet cotton selected species, my field test in 1974 on the basis of last year’s full promotion, and river mud nursery and live broadcast contrast test. After two years of practice, we believe that the selection of seeds by this method not only saves labor, improves the quality of cotton seeds, but also accelerates the breeding of elite seeds and increases the yield of cotton. This is a new method for selecting elite varieties of cotton and a way for increasing cotton yield . First, plush water characteristics of cotton