| 不同氮肥处理对小麦花后光合性能及产量构成的影响 |
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| 引用本文： | 田伟,刘艳侠,郭振升,崔保伟,张慎举.不同氮肥处理对小麦花后光合性能及产量构成的影响[J].商丘职业技术学院学报,2011(5):93-96. |
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| 作者姓名： | 田伟 刘艳侠 郭振升 崔保伟 张慎举 |
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| 作者单位： | 商丘职业技术学院; |
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| 基金项目： | 河南省科技攻关计划项目“强筋小麦高产高效栽培技术体系研究(0424020024)” |
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| 摘 要： | 为探讨不同氮肥处理对小麦花后光合性能及产量构成的影响，采用随机区组试验．结果表明，在灌浆期间随着氮肥用量的递减叶片叶绿素含量、光合速率（Pn）均呈下降趋势，且随着时间的推移施氮量越少下降越快．合理施用氮肥，适当推迟施用时间，可明显提高叶片叶绿素含量和光合速率，延长叶片功能期．在每公顷施纯氮150—330kg的范围内，各处理均较对照显著增产，其中以施纯氮330kg/hm^2处理增产幅度最大，该施肥处理的氮磷钾肥施用比例（N：P2O5：K2O）为1：0．44：0．41，氮肥分配比例为底肥60％：拔节肥20％：孕穗追肥20％．
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| 关 键 词： | 小麦 施氮量 光合性能 产量结构 |
Study on the Effect of Different Nitrogen Treatments on the Photosynthesis and Yield after the Wheat Anthesis |
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| TIAN Wei,LIU Yan-xia,GUO Zhen-sheng,CUI Bao-wei,ZHANG Shen-ju.Study on the Effect of Different Nitrogen Treatments on the Photosynthesis and Yield after the Wheat Anthesis[J].Journal of Shangqiu Vocational and Technical College,2011(5):93-96. |
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| Authors: | TIAN Wei LIU Yan-xia GUO Zhen-sheng CUI Bao-wei ZHANG Shen-ju |
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| Institution: | TIAN Wei,LIU Yan-xia,GUO Zhen-sheng,CUI Bao-wei,ZHANG Shen-ju(Shangqiu Vocational and Technical College,Shangqiu 476100,China) |
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| Abstract: | To explore the effect of different nitrogen treatments on the photosynthesis and yield after the wheat anthesis,the randomized block experiment was carried out.The results show that with the decrease of the nitrogen in the grain filling period,the chlorophyll content and the photosynthetic rate(Pn) were decreased,and with the time went on,the rate of nitrogen decreased faster.The reasonable application of nitrogen fertilizer and the proper delay of the application can significantly increase the chlorophyll ... |
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| Keywords: | wheat nitrogen rate photosynthesis yield structure |
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