一、重施桃肥的经济效益棉花重施桃肥是近几年来新发展起来的科学植棉新技术,对提高棉花单位面积产量起决定性作用。早在七十年代,我县对棉花重施花肥普施桃肥进行了多点试验,大量数据证明,棉花普施桃肥,具有拉长后期有效结铃期,防早衰,多结桃,结大桃,增铃重,提高棉花单产的经济效果。一九七八年地处长江中心、冲积平原的棉船公社江心大队五小队,有几亩壤质潮土麦地套种棉花,在八月十日施尿素25斤,平均单株结成桃12.9个,单铃重4.1克,每亩有成桃54180个;而毗连的一块同土质的麦地棉花没有施桃肥,单株成桃只有11.5个,单铃重3.5克,每亩 First, the economic benefits of re-applying peach Fertilize cotton re-application of peach fertilizer in recent years developed a new science and technology of cotton, cotton yield per unit area to play a decisive role. As early as the seventies, the county carried out a number of tests on cotton re-fertilization of peach fertilizer, a large number of data show that cotton, peach fertilizer, with an effective post-lengthening period, anti-premature senility, more peach, knot Large peach, boll weight, improve the economic effect of cotton yield. In 1978, at the center of the Yangtze River, five teams of the Jiangxin Brigade of the Cotton Boathouse in the alluvial plain planted cotton with a few acres of soil-tillage maize and 25 kilograms of urea on August 10, 12.9, a single boll weight 4.1 grams, 54180 acres of fruit into a peach; adjoining a piece of the same with the soil of cotton without peach fertilizer, peach single plant only 11.5, a single boll weight 3.5 grams per mu