| 施用尿素对冬萝卜产量形成及叶绿素含量的影响 |
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| 引用本文： | 李建锋,张荣,董莹莹.施用尿素对冬萝卜产量形成及叶绿素含量的影响[J].安徽农业科学,2010,38(4):1786-1787,1806. |
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| 作者姓名： | 李建锋 张荣 董莹莹 |
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| 作者单位： | 西北农林科技大学植物保护学院,陕西杨凌,712100;河南省洛阳市农村能源开发工作站,河南洛阳,471002;西北农林科技大学植物保护学院,陕西杨凌,712100;河南省洛阳市园林局,河南洛阳,471003 |
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| 摘 要： | 目的]研究冬萝卜莲座期叶绿素含量及收获期产量与对应施氮肥量的关系。方法]以广东培育的晚熟冬萝卜为试材,施尿素处理设0、70、130、190、250kg/hm2（分别标记为N0、N70、N130、N190、N250）5个施N水平,动态分析了莲座期冬萝卜叶片叶绿素含量及收获时冬萝卜产量。结果]5个不同施N水平处理中,冬萝卜叶片叶绿素含量随施N肥量的增加呈对数递增,以N130处理的叶绿素含量最高（0.461mg/kgFW）,且与N190和N250处理间差异不显著;收获时,块根产量以N130处理最高（65.5t/hm2）,N250处理次之（63.5t/hm2）;冬萝卜叶产量以N250处理最高（17.7t/hm2）,N130处理次之（12.6t/hm2）。块根产量和叶产量分别与叶绿素含量间呈极显著正相关（R2=0.9809）和显著正相关（R2=0.7891）。结论]研究认为,该地区冬萝卜施N肥量应在150kg/hm2为宜。
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| 关 键 词： | 冬萝卜 尿素 产量 叶绿素 |
Effects of Urea Application on the Yield Formation and Chlorophyll Content of Winter Radish |
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| LI Jian-feng et al.Effects of Urea Application on the Yield Formation and Chlorophyll Content of Winter Radish[J].Journal of Anhui Agricultural Sciences,2010,38(4):1786-1787,1806. |
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| Authors: | LI Jian-feng |
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| Institution: | College of Plant Protection;Northwest Agricultural and Forestry University;Yangling;Shaanxi 712100 |
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| Abstract: | Objective]The study aimed to research the relation of chlorophyll content in the rosette stage and the yield in harvest stage for winter radish with the nitrogenous fertilizer rate in the corresponding stage.Method]With the cultivated late-maturing winter radish bred in Guangdong Province as the tested material,the urea application treatment was set up as 5 N application levels:0,70,130,190,250 kg/hm2(marked as N0,N70,N130,N190,N250 resp.) and the leaf chlorophyll content in the rosette stage and the yiel... |
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| Keywords: | Winter radish Urea Yield Chlorophyll |
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