本试验在湖北省浠水县十月大队的田间进行.该队位于长江中游北岸、大别山南麓的花岗片麻岩低山丘陵地区,以栽培水稻为主.由于由长期实行双季稻加冬作轮作制,结果在地势较低、质地较粘的田块出现了土壤次生潜育化现象,致使产量下降.为了解决这一问题,我们于1980—1981年在发生次生潜育化的高产水稻土上,采取稻棉轮作措施,运用对比法,研 The experiment was carried out in the field of October Battalion in Xishui County, Hubei Province.The team is located in the hilly area of ​​granite gneiss in the north of the middle reaches of the Yangtze River and south of the Dabie Mountains, mainly cultivated rice.Because of the long-term implementation of double cropping rice plus Winter crop rotation system, the result in the lower terrain, the texture is sticky plots appeared secondary soil gleization phenomenon, resulting in decreased production.In order to solve this problem, we in 1980-1981 in the secondary gley Of the high-yielding paddy soil, to take rice cotton rotation measures, the use of contrast method, research