论文部分内容阅读
据1983年南方杂交水稻会议统计:南方13个省(区)市种植杂交水稻1.01亿多亩,占水稻面积的21.8％,总产861亿斤,占水稻总产的28%,单产突破了850斤。各地又涌现出一大批高产典型,亩产超千斤的有29个地(市)、204个县,面积达2,646万亩。1983年杂交水稻取得这样令人振奋的好成绩,除政策好,人努力,天帮忙之外,推广应用科学的栽培技术也起到了很大的作用。为进一步发挥杂交水稻的增产潜力,实现更大面积的平衡增产,根据各地科学实验和高产栽培经验,经过初步整理分析,现将杂交水稻高产栽培的几个关键问题,综述如下: 一、因地制宜,选用组合目前各地已明确了适
According to the statistics of the Southern Hybrid Rice Conference of 1983, 101 million mu of hybrid rice were planted in 13 southern provinces (autonomous regions), accounting for 21.8% of the total paddy area, with a total output of 86.1 billion kg, accounting for 28% of the total output of rice and a yield of 850 jin. A large number of high-yield typicals have emerged in other places. There are 29 prefectures (cities) and 204 counties with an area of 26.46 million mu. In 1983, hybrid rice achieved such an encouraging and good result. Apart from good policies, people working hard and helping others day by day, the promotion of applied cultivation techniques has also played a significant role. In order to further enhance the yield potential of hybrid rice and achieve a larger area of balanced yield increase, according to the scientific experiments and high-yielding cultivation experiences in various places, after preliminary analysis, several key problems of high yielding hybrid rice are summarized as follows: First, Selection of combinations around the current have been clearly appropriate