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| 氮肥用量和移栽密度对超级早稻产量及某些生理指标的影响 | |
| 引用本文： | 刘武,黄林,谢明德,程兆伟,莫亚丽,詹可,邹应斌.氮肥用量和移栽密度对超级早稻产量及某些生理指标的影响[J].作物研究,2008,22(4). |
| 作者姓名： | 刘武 黄林 谢明德 程兆伟 莫亚丽 詹可 邹应斌 |
| 作者单位： | 1. 湖南农业大学农学院,长沙,410128;株洲市农业科学研究所,湖南株洲,412007 2. 常德市农业科学研究所,湖南常德,415000 3. 郴州市农业科学研究所,湖南郴州,422000 4. 湖南农业大学农学院,长沙,410128 |
| 基金项目： | 农业部超级稻配套栽培技术开发与技术集成项目，湖南省超级稻三定栽培技术研究项目 |
| 摘 要： | 为了探讨氮肥用量与插秧密度对超级早稻产量的影响，2007年在长沙、常德、郴州进行了大田栽培联合试验。结果表明不同施肥量处理间产量及有效穗数、每穗粒数、结实率、收获指数等产量构成因素差异显著．中早22产量与施氮量呈单峰曲线，以150kg／hm^2施氮量处理的产量最高（长沙7．5t／hm^2，常德9．4t／hm^2）．在0～150kg／hm^2的施氮范围内增产效应最明显；陆两优996产量随施氮量增加而增加，以195kg／hm^2施氮量处理的产量最高。在30×10^4～36×10^4穴／hm^2的密度范围内，穗数与每穗粒数之间具有良好的互补性，因而密度间产量差异未达显著水平。本试验条件下，氮肥和栽插密度对产量的互作效应不显著。 |
| 关 键 词： | 早稻 栽培 施肥 |
Effects of Nitrogen Rate and Transplanting Density on Yield and Some Physiological Indexes in Super Early Rice |
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| LIU Wu,HUANG Lin,XIE Ming-de,CHENG Zhao-wei,Mo Ya-li,ZHAN Ke,ZOU Ying-bin.Effects of Nitrogen Rate and Transplanting Density on Yield and Some Physiological Indexes in Super Early Rice[J].Crop Research,2008,22(4). | |
| Authors: | LIU Wu HUANG Lin XIE Ming-de CHENG Zhao-wei Mo Ya-li ZHAN Ke ZOU Ying-bin |
| Institution: | LIU Wu1,2,XIE Ming-de3,HUANG Lin4,CHENG Zhao-wei1,MO Ya-li1,ZHAN Ke1,JIANG Peng1,ZOU Ying-bin1(1 College of Agronomy,Hunan Agricultural University,Changsha,Hunan,410128,China,2 Zhuzhou Agricultural Science Research Institute,Zhuzhou,412007,3 Chenzhou Agricultural Science Research Institute,Chenzhou,423000,4 Changde Agricultural Science Research Institute,Changde,415000,China) |
| Abstract: | To clarify the effects of different nitrogen application rates and transplanting density on grain yield and some physiological indexes in super early rice,the field experiments were conducted with Zhongzao 22 and Luliangyou 996 in Changsha,Changde and Chenzhou in 2007.There were significant difference in yield,effective panicles,grain per panicle,seed setting rate and harvest index among different nitrogen fertilizer rates.As for Zhongzao 22,the correlation between grain yield and N rate showed a single pea... |
| Keywords: | Early rice Cultivation Fertilization |
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