为了探索水稻生产的基本参数,进一步研究高海拔区域水稻适宜的施氮时期和基蘖肥、穗肥、促花肥和保花肥的不同分配,提高氮肥的利用率和保护生态环境,本文在云南省永胜县实施了试验氮素肥料施用适期试验研究,结果表明,在高海拔水稻上施N量以基蘖肥:穗肥=5:5的方式为最佳。 In order to explore the basic parameters of rice production and further study on the suitable nitrogen application period and the distribution of base tiller, panicle, flower and fertilizer and flower-protect fertilizer in high-altitude rice region, and to improve the utilization rate of nitrogen fertilizer and protect the ecological environment, Yongsheng County implemented a pilot study on the application of nitrogen fertilizers, the results showed that the application of N at high altitude rice with base tillering: panicle = 5: 5 way is the best.