杂交水稻根系发达,分蘖力强,长势旺盛,易于繁茂。对光照条件的要求较常规稻更为严格。为了合理利用光能,更大地发挥杂交水稻的增产潜力,我们进行了杂交晚稻的不同行向和株行距的试验。初步结果表明:东西向较南北向,有增产趋势。 Hybrid rice developed roots, strong tillers, growing strong, easy to lush. The requirements of lighting conditions are more stringent than conventional rice. In order to make rational use of light energy and make greater use of yield potential of hybrid rice, we conducted experiments on different lines and spacing of late hybrid rice. The preliminary results show that: the east-west direction than the north-south, increasing production trends.