南方农业学报2011，Vol.42Issue(5)：521-523,3.
不同施氮量对新两优6号产量因子的影响
Effect of different rate of nitrogen application on yield of rice variety Xinliangyou 6
摘要
Abstract
[Objective]In order to find out the best nitrogen fertilizer application rates for rice variety Xinliangyou 6 in the middle region of Guangxi, the effect of different rates of nitrogen application on yield of rice was studied. [Method]In 2009, a field experiment on super rice variety was conducted with four treatments of different rates of N fertilizer, viz., no N fertilizer (No), 189 kg/ha (N1, 30％ lower than traditional nitrogen level), 270 kg/ha (N2, traditional nitrogen level),and 351 kg/ha (N3, 30％ higher than the traditional nitrogen level). [Results]Significant differences in the yield of rice treated N1, N2 and N3 were observed compared to No. The highest yield was recorded with application of 270 kg/ha N (N2). This treatment also recorded the highest effective panicles, total grains, filled gains, 1000-grain weight and seed setting rate. [Conclusion]The amount of nitrogen fertilizer, higher or lower, affects the rice growth and yield. According to the results of current study, the suitable rate of nitrogen fertilizer for the variety Xinliangyou 6 was 270 kg/ha.关键词
超级稻/新两优6号/氮肥/产量Key words
super rice/ Xinliangyou 6/ nitrogen fertilizer/ yield分类
农业科技引用本文复制引用
李小霞,覃凯旋,沈峰杰,罗同平,陈桂兰,覃瑞德,向花香,黄斌..不同施氮量对新两优6号产量因子的影响[J].南方农业学报,2011,42(5):521-523,3.基金项目
国家现代农业产业技术体系建设专项资金项日(2060320) （2060320）
