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1985年,定远县水稻总产达到3.05亿公斤,比1984年增长72%,比历史最好年份的1983年增长26%,水稻占粮食产量的比重由常年的50%上升到63%。水稻丰收,改变了夏粮减产,粮食生产呈下降趋势的被动局面,全年粮食产量超过历史最高水平。定远县水稻生产为什么会大幅度增产呢?这主要是采取了以下技术措施: 一、扩大杂交稻面积全县汕优6号等杂交稻面积达到34.8万亩,占水稻面积的44%,比上年扩大一倍多,杂交稻亩产全县平均比常规稻增产125公斤以上。二、调整水稻生产布局这个县地处江淮丘陵东北部,属稻杂兼产区,水利条件较差,同时乡、村间也不平衡。全县有效灌溉面积占耕地面积的53%,旱
In 1985, the total output of paddy rice in Dingyuan County hit 305 million kg, an increase of 72% over 1984 and an increase of 26% over 1983, the highest in history. The share of rice in grain output rose from 50% in the previous year to 63%. The bumper harvest of rice has changed the passive situation that the output of summer grain is declining and grain production is declining. The annual grain output surpassed the highest level in history. The main reason is to take the following technical measures: First, to expand the area of hybrid rice County Shanyou 6 and other hybrid rice area reached 34.8 million mu, accounting for 44% of the rice area, the ratio More than doubled in the previous year, the average yield of hybrid rice in the county was 125 kg more than that of conventional rice. Second, adjust the layout of rice production This county is located in the northeastern Jianghuai hills, is a rice-growing area, poor water conditions, at the same time, the village and the village is not balanced. The county’s irrigated area accounts for 53% of arable land, drought