论文部分内容阅读
一、前言水稻是我省主要细粮作物,目前种植面积占粮食作物总面积的15％,而稻谷总产量占粮食作物总产量的23％,商品粮占30％以上,故在我省粮食产量上占有重要的地位。为此,扩大稻田面积和提高稻谷总产量是人心所向,势在必行。但我省水资源比较贫乏,工农业用水十分紧张。特别是水稻主产区的“辽浑太”流域,由于连年干旱,稻田用水越来越明显不足,1982年仅盘山县就有9万亩没插上秧,24万亩绝收。1983年仍有不少稻田迫于无水而改种旱田,这不但严重影响水稻高产稳产和持续增产,而且也限制
I. Introduction Rice is the main grain crops in our province. Currently, the cultivated area accounts for 15% of the total area of food crops, while the total output of rice accounts for 23% of the total output of food crops and the commodity grain accounts for more than 30%. Therefore, it occupies the grain output of our province Important position. For this reason, it is imperative to expand the area of paddy fields and increase the total output of rice. However, the water resources in our province are relatively poor, and water for industry and agriculture is very tense. Especially in the main producing area of “Lvhuntai too” basin, due to successive years of drought, paddy water is obviously less and less, in 1982 only 98000 acres of Panshan County did not plug in seedlings, 240000 acres of crops. In 1983, many paddy fields were forced to dry land without water, which not only seriously affected the high and stable yield of rice and continued increase in yield but also limited