以第四纪红土红壤开垦的新辟稻田为供试土壤，以杂交早稻威优２００为供试作物，进行田间试验，研究新辟红壤性稻田上水稻不同施氮时期的效应。结果表明，新辟红壤性稻田上水稻在施用适宜磷、钾肥和中氮水平的基础上，氮肥的基肥∶蘖肥∶穗肥比例以４∶４∶２为宜，既可满足水稻前期早生快发，又可克服后期早衰和防止土壤漏肥等缺点，是夺取新辟红壤性稻田上水稻高产较好的技术措施 The new paddy field reclaimed from lateritic red soil in Quaternary was used as test soil. The hybrid rice “Weiyou 200” was used as tested crop and the field experiment was conducted to study the effect of different nitrogen application period on newly paddy red rice in newly paddy soil. The results showed that basal nitrogen fertilizer: the ratio of tiller fertilizer to panicle fertilizer was 4: 4: 2, which could meet the needs of early rice early growth rate Hair, but also to overcome the late premature aging and prevent leakage of soil and other shortcomings, is to capture the newly established red paddy rice on the high yield of better technical measures