淹水对水稻乳苗撒播成苗的影响

不同灌溉方式下水稻乳苗撒播成苗情况研究结果表明，无水层带泥浆撒播处理，根系发育与茎叶生长比较协调，成苗率迭90．7％，秧苗综合性状好于其他处理，是水稻乳苗抛秧的首选方式；淹水48h后落干处理，有利于发根和扎根立苗，成苗率达92．7％，秧苗综合性状较好，是水稻乳苗抛秧应采用的第2种方式。

Effect of Flooding on Seedling of Rice Nurseling-seedling-scattering

The seedling of rice nurseling-seeding-scattering in different irrigation methods were studied.The results showed that the treatment of spreading in mud layer without water had a higher rate of seedling which reached 90.7%,the growth of root,stem and leaf was narmony,and seedling traits were better than the other treatments.So it was the preferred way of rice nurseling-seeding-scattering.The treatment of drop-dry after flooding for 48 hours was conducive to root development,which had a higher rate of seedling reaching 92.7%,and seedling had better comprehensive characters,so it was the second approach that should be adopted in rice nurseling-seeding-scattering.