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| 栽培方式对陆两优996产量形成与氮利用效率的影响 | |
| 引用本文： | 张小平,吴小京,易镇邪,屠乃美,张阳.栽培方式对陆两优996产量形成与氮利用效率的影响[J].作物研究,2010,24(1):12-15,18. |
| 作者姓名： | 张小平 吴小京 易镇邪 屠乃美 张阳 |
| 作者单位： | 1. 郴州市农业科学研究所,湖南郴州,423042 2. 郴州市农作物种子储备和技术推广站 3. 湖南农业大学农学院,长沙,410128 |
| 基金项目： | 湖南省重大科技专项，湖南省自然科学基金项目，湖南农业大学人才基金项目，湖南省普通高校青年骨干教师培养计划项目 |
| 摘 要： | 在施氮180kg/hm2与不施氮条件下,比较了宽窄行和等行距两种栽培方式对超级杂交早稻陆两优996产量形成特性与氮利用效率的影响。结果表明:(1)与等行距栽培相比,宽窄行栽培具有一定的增产作用,增产原因在于:促进分蘖,提高有效穗数;促进穗分化,提高每穗总粒数;增大叶面积,延缓叶片衰老,促进物质积累;降低茎鞘物质输出率,改善源库关系。(2)与等行距栽培相比,宽窄行栽培的氮素累积量、氮肥利用率与氮素吸收效率显著提高,氮收获指数与氮素利用效率显著下降,而氮生理效率与氮肥效率变化不大。 |
| 关 键 词： | 水稻 栽培 宽窄行 产量形成 氮利用效率 陆两优996 |
Effect of Wide-narrow-row on Yield Formation and Nitrogen Utilization Efficiency of Luliangyou 996 |
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| ZHANG Xiao-ping,WU Xiao-jing,YI Zhen-xie,TU Nai-mei,ZHANG Yang.Effect of Wide-narrow-row on Yield Formation and Nitrogen Utilization Efficiency of Luliangyou 996[J].Crop Research,2010,24(1):12-15,18. | |
| Authors: | ZHANG Xiao-ping WU Xiao-jing YI Zhen-xie TU Nai-mei ZHANG Yang |
| Institution: | ZHANG Xiao-ping1,WU Xiao-jing2,YI Zhen-xie3,TU Nai-mei3,ZHANG Yang3(1 Chenzhou Institute of Agricultural Sciences,Chenzhou,Hunan 423042,China,2 Chenzhou Crop Seed Storage , Technology Extension Station,Hunan 423000,3 College of Agronomy,Hunan Agricultural University,Changsha,Hunan 410128,China) |
| Abstract: | Effects of wide-narrow-row and equal-row on yield formation characteristics and nitrogen utilization efficiency of super early rice combination Luliangyou 996 were comparatively studied under conditions of 0 and 180 kg /hm2,and the main results showed that (1) wide-narrow-row treatment could increase yield at a certain extent compared to equal-row treatment,and the reasons on yield-increasing were heightening effective painicle by promoting tillering,heightening grain number per panicle by promoting spike d... |
| Keywords: | Rice Cultivation model Wide-narrow-row Yield formation Nitrogen utilization efficiency Luliangyou 996 |
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