福建农业学报2011，Vol.26Issue(4)：557-561,5.
氮肥运筹比例对水稻生长及产量的影响
Effects of Nitrogen Application Ratio on the Growth and Yield of Rice (Oryza sativa.L)
摘要
Abstract
Nitrogen fertilization is one of the important factors in the rice cultural regulation, which play an important role in the finally yield. To understand the effects of nitrogen application ratio, the two fertilization treatments used 9∶ 1 (NT) and 6∶ 4 (NP) ratios of N were applied at the pre-and post birth growth stage. At the same time, three different panicle types of rice were used as the experiment material. The results showed that the NP application treatment could be favorable to the rice growth as following: it could reduce the ineffective tillering, increase the effective spike rate, improve the population structure, delay the degradation of chlorophyll, increase the leaf area index of late growth stage and accelerate the transition of tem-sheath reserve to grain, which lead to the high yield of rice. The results also showed that effects of NP application treatment on final yield of large-panicles rice were more significant, which indicating that the appropriate increasing in N supply at late stage of large-panicles rice may play a more important role on the yield formation.关键词
水稻/籽粒灌浆/氮肥/栽培Key words
rice/ grain filling/ nitrogen fertilization/ culture分类
农业科技引用本文复制引用
李忠,陈军,林世圣,林登贵,张志兴,陈冬梅,林文雄..氮肥运筹比例对水稻生长及产量的影响[J].福建农业学报,2011,26(4):557-561,5.基金项目
国家自然科学基金(20871494) （20871494）
教育部博士点基金(200803890006) （200803890006）
国家大学生创新性实验计划项目(101038901) （101038901）
