1981年安庆地区双晚杂交稻共51.4万亩,平均亩产285公斤。最近三年都在110万亩以上,平均亩产分别是366公斤,385公斤和335.5公斤。应该说产量不算低。但是,根据杂交稻的生产潜力,和大量亩产接近或超过500公斤的事例,说明杂交稻在本地区的增产潜力还未充分发挥。为进一步挖掘杂交稻的增产潜力,提高单产,使双晚杂交稻产量更上一层楼,须从栽培技术 Anqing area in 1981 double-night hybrid rice a total of 514,000 mu, an average yield of 285 kg. In the recent three years, all of them are above 1.1 million mu, with average yields of 366 kilograms, 385 kilos and 335.5 kilos respectively. It should be said that the output is not low. However, based on the potential of hybrid rice production and the large number of mu produce close to or exceeding 500 kg, the yield potential of hybrid rice in this region has not yet been fully realized. In order to further explore the yield potential of hybrid rice and improve yield, double-late hybrid rice yield to the next level, from cultivation techniques