大别山区冷浸田水稻旱秧垄作栽培早熟增产的生理学基础

Physiological Basis of Ridge Culture of Rice Seedlings from the Dry Nursery for High Yield in the Cold Water Field in the Mountain Areas

研究结果表明，将水稻旱育秧技术和垄作栽培技术相结合（以下简称旱秧垄作），可显著改善山区冷浸田水稻群体质量，增强群体光合性能，促时水稻生长发育和光合产物的生产、积累与分配，早熟高产，比普通栽培方法增产４７．５％。

The physiological basis of ridge culture of rice seedlings from the dry nursery was discussed.Results showed that it can improve the rice quality in the cold fields in the mountain areas ,enhance population photosynthsis,and promote the accumulation and redistribution of assimilation,shift to an earlier mature time and make the yield increase 47.5%comparing with the common methdos,which laid theoretical foundation for the technical application.