| 秸秆还田条件下播种水和氮肥底追比对 冬小麦旗叶荧光特性和产量的影响 |
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| 引用本文： | 林非非,李金才,魏凤珍,王成雨,彭超攀,张林,孙建强,郏云生.秸秆还田条件下播种水和氮肥底追比对 冬小麦旗叶荧光特性和产量的影响[J].安徽农业大学学报,2014,41(5):731. |
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| 作者姓名： | 林非非 李金才 魏凤珍 王成雨 彭超攀 张林 孙建强 郏云生 |
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| 作者单位： | 安徽农业大学农学院,合肥230036;蒙城县农业科学研究所,蒙城233500 |
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| 基金项目： | 公益性行业（农业）科研专项（201203079, 201203100）资助。 |
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| 摘 要： | 通过田间试验研究砂姜黑土地区秸秆还田条件下播种水和氮肥底追比对小麦旗叶叶绿素荧光参数和产量构成因素的影响。结果表明，秸秆还田条件下灌播种水和氮肥后移显著降低灌浆前后期旗叶Fo(P<0.01)；增加灌浆中期旗叶Fm(P<0.01),延缓小麦灌浆后期旗叶Fm的降低速度。灌播种水显著延缓Fv/Fo和Fv/Fm的下降。秸秆还田可以显著缓解灌浆前期Y(Ⅱ)的下降(P<0.01)，灌播种水显著延缓灌浆中期旗叶Y(Ⅱ)的下降速率(P<0.01)。秸秆还田和灌播种水条件下氮肥的后移有利于提高灌浆期旗叶Y(Ⅱ)。秸秆还田条件下灌播种水降低开花期和灌浆前期旗叶Y(NPQ),增加灌浆中后期旗叶Y(NPQ)；显著降低灌浆中期旗叶Y(NO) (P<0.05)。氮肥后移有利于降低灌浆期旗叶Y(NO)，从而在灌浆期内合理利用光能，降低光损伤。秸秆还田条件下水氮耦合有利于增加小麦单位面积有效穗数与产量。尤其灌播种水显著增加单位面积有效穗数与提高小麦产量(P<0.05)；秸秆还田显著增加主茎（P<0.05）和第一大分蘖(P<0.01)的单穗结实粒数。
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| 关 键 词： | 秸秆还田 灌播种水 氮肥底追比 叶绿素荧光 产量 冬小麦 |
Effects of sowing water and the ratio of base N to top N in the straw-returning field on fluorescent characteristics of the flag leaf and yield in winter wheat |
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| LIN Feifei,Li Jincai,WEI Fengzhen,WANG Chengyu,PENG Chaopan,ZHANG Lin,SUN Jianqiang and JIA Yunsheng.Effects of sowing water and the ratio of base N to top N in the straw-returning field on fluorescent characteristics of the flag leaf and yield in winter wheat[J].Journal of Anhui Agricultural University,2014,41(5):731. |
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| Authors: | LIN Feifei Li Jincai WEI Fengzhen WANG Chengyu PENG Chaopan ZHANG Lin SUN Jianqiang and JIA Yunsheng |
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| Institution: | School of Agronomy, Anhui Agricultural University, Hefei 230036,School of Agronomy, Anhui Agricultural University, Hefei 230036,School of Agronomy, Anhui Agricultural University, Hefei 230036,School of Agronomy, Anhui Agricultural University, Hefei 230036,School of Agronomy, Anhui Agricultural University, Hefei 230036,School of Agronomy, Anhui Agricultural University, Hefei 230036,Institute of Agriculture Sciences, Mengcheng 233500 and Institute of Agriculture Sciences, Mengcheng 233500 |
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| Abstract: | water applied field. Straw-returning to the field was in favor of increasing the number of kernels per head on the main stem and the second tiller of wheat. |
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| Keywords: | residue incorporation sowing water nitrogen fertilizer ratio of base and topdressing chlorophyll fluorescence yield winter wheat |
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