| 孕穗肥氮肥用量对抛栽杂交中稻后期光合性能及产量的影响 |
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| 引用本文： | 杨安中,段素梅,朱启升,陈周前.孕穗肥氮肥用量对抛栽杂交中稻后期光合性能及产量的影响[J].杂交水稻,2011,26(3). |
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| 作者姓名： | 杨安中 段素梅 朱启升 陈周前 |
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| 作者单位： | 1. 安徽科技学院,植物科学学院,安徽,凤阳,233100
2. 安徽省农业科学院,水稻研究所,安徽,合肥,230031 |
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| 基金项目： | 安徽省"十一五"重大攻关项目，安徽科技学院重点学科项目，蚌埠市科技计划项目，安徽省教育厅优秀青年基金项目 |
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| 摘 要： | 以杂交中稻皖稻153为材料,研究了孕穗肥氮肥用量对抛栽杂交水稻后期光合性能及产量的影响.结果表明:增加孕穗肥氮肥用量能提高后期叶片叶绿素含量,增加有效叶面积,保持后期有较高的光合潜能;增加二次分枝数、每穗粒数、着粒密度.杂交水稻皖稻153抛栽孕穗肥以施用尿素120 kg/hm<'2>左右为宜.
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| 关 键 词： | 杂交水稻 抛栽 孕穗肥 光合性能 产量 |
Effects of Booting Nitrogen Fertilizer Rate on Photosynthetic Characteristics and Grain Yield of Seedling-broadcast Hybrid Rice |
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| YANG An-zhong,DUAN Su-mei,ZHU Qi-sheng,CHEN Zhou-qian.Effects of Booting Nitrogen Fertilizer Rate on Photosynthetic Characteristics and Grain Yield of Seedling-broadcast Hybrid Rice[J].Hybrid Rice,2011,26(3). |
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| Authors: | YANG An-zhong DUAN Su-mei ZHU Qi-sheng CHEN Zhou-qian |
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| Institution: | YANG An-zhong1,DUAN Su-mei1,ZHU Qi-sheng2,CHEN Zhou-qian 2(1.Department of Botany,Anhui Science and Technology University,Fen gyang,Anhui 233100,China,2.Rice Research Institute,Anhui Academy of Agricul tural Sciences,Hefei,Anhui 230031,China) |
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| Abstract: | The effects of booting nitrogen fertilizer ra te on photosynthetic characteristics and grain yield of hybrid rice with seedling broadcasting were studied with Wandao 153,a medium hybrid rice variety,as the material.The results showed that the chlorophyll content of flag leaves and eff ective leaf area index(LAI) at full heading stage increased along with the incr easing of the booting fertilizer rate,which could keep a high photosynthetic ca pacity in the late growth stages.Meanwhile,the number of secondary... |
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| Keywords: | hybrid rice seedling broadcasting booting nitrogen f ertilizer photosynthetic characteristics grain yield |
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