| 湖南冬闲田马铃薯氮吸收分配规律研究 |
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| 引用本文： | 黄科,刘明月,何长征,宋勇,吴秋云,熊兴耀.湖南冬闲田马铃薯氮吸收分配规律研究[J].马铃薯杂志,2012(1):21-25. |
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| 作者姓名： | 黄科 刘明月 何长征 宋勇 吴秋云 熊兴耀 |
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| 作者单位： | 作物种质创新与资源利用国家重点实验室培育基地湖南农业大学园艺园林学院湖南省马铃薯工程技术研究中心,湖南长沙410128 |
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| 基金项目： | 农业部马铃薯产业技术体系（CARS-10-P19）;湖南省自然科学基金项目（11JJ3035）;湖南省教育厅项目（118063）. |
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| 摘 要： | 试验采用“3414”设计方案，分析冬闲田马铃薯在不同肥料水平下氮肥吸收分配规律。结果表明：马铃薯地上部全氮含量在全生育期间其动态变化呈现为苗期低，块茎形成期高，而在块茎成熟期缓陧下降的趋势，且在整个生育期内，氮素浓度的变化表现为地上部〉块茎；块茎中氮的含量均在块茎形成期最高，块茎成熟期下降。
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| 关 键 词： | 冬闲田 马铃薯 氮磷钾 吸收 分配 |
Characterization of Nitrogen Absorption and Distribution in Potato Planted in Winter Fallow Fields in Hunan Province |
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| HUANG Ke,LIU Mingyue,HE Changzheng,SONG Yong,WU Qiuyun,XIONG Xingyao.Characterization of Nitrogen Absorption and Distribution in Potato Planted in Winter Fallow Fields in Hunan Province[J].Chinese Potato Journal,2012(1):21-25. |
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| Authors: | HUANG Ke LIU Mingyue HE Changzheng SONG Yong WU Qiuyun XIONG Xingyao |
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| Institution: | ( Hunan Provincial Key Laboratory for Germplasm Innovation and Utilization of Crop; College of Horticulture and Landscape, Hunan Agricultural University; Hunan Provincial Engineering Research Center for Potato, Changsha, Hunan 410128, China ) |
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| Abstract: | Potato fertilizer absorption and distribution dynamic at different fertilizer levels were analyzed in ＇3414＇ design, and the nitrogen absorption characters at different growth periods in potato were made clearly. The total nitrogen content of aboveround part during the growth period was low at the seedling stage, high at the tuber formation stage, and declined slowly at the tuber maturity stage. The nitrogen content concentration of the above-ground part changed more than those of potato tubers and the contents of nitrogen in potato tubers were the highest at the tuber formation stage and then declined at the tuber maturity stage. |
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| Keywords: | winter fallow field potato NPK absorption distribution |
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