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长江中下游和苏南是我国稻茬麦主要产区,也是世界稻茬麦主要产地。本区小麦(包括大麦下同)的丰歉,对全国小麦生产具有重要影响。但本区春季多雨、光照不足、湿害严重、耕作栽培粗放、病虫杂草危害,高产地区倒伏面积年趋加重,这些都是影响本区小麦高产稳产的障碍因素。本区小麦穗器官形成期较长有利小麦多花多实,这是本区小麦穗大粒多的优越生态因素。但是,本区小麦籽粒灌浆的持续时间较短,且常有多种自然灾害的影响,因而千粒重很不稳定,这是小麦难以稳定持续高产的主要原因。针对以上特点与问题,江苏省农科院与科研教学和生产部门,近十年来加强了对小麦高产栽培技术的研究。江苏省农科院的小麦高产田从1978—1981年连续四年平均亩产突破500公斤。经苏南地区八个县的小麦高产栽培开发试验,三年累计试验面积3,385亩,平均亩产420.6公斤,同时降低了成本增加了收入,得到了广大群众的
The middle and lower reaches of the Yangtze River and southern Jiangsu is the main producing areas of rice stubble, is also the world’s major producer of rice stubble. The apology and apology of wheat in this area (including the same below) have an important impact on wheat production in the country. However, the rainy spring in this area, insufficient light, severe wetting, extensive cultivation and cultivation, pests, weeds and pests and weeds, and the lodging area in high-yielding areas are increasingly aggravated. All of these are obstacles to the high and stable yield of wheat in this area. This region wheat ear organ formation of longer favorable wheat more flowering and more solid, which is the region more than the grain size of wheat superior ecological factors. However, the grain filling duration of wheat in this area is short and often affected by many natural disasters. Therefore, the 1000-grain weight is very unstable, which is the main reason that wheat can not be stably and consistently high in yield. In response to the above characteristics and problems, Jiangsu Academy of Agricultural Sciences and scientific research teaching and production departments, the past ten years to strengthen the high-yielding cultivation techniques of wheat. The high-yielding wheat field of Jiangsu Academy of Agricultural Sciences broke through 500 kilograms per mu for four consecutive years from 1978 to 1981. The experiment of high-yielding wheat in eight counties in southern Jiangsu province has a total trial area of 3,385 mu in three years, with an average yield of 420.6 kilograms per mu. At the same time, the cost is reduced and the income is raised.