| 盐碱地滴灌玉米体内Na+、K+、Ca2+、Mg2+的分布及运移特征 |
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| 引用本文： | 刘帆,周青云,张宝忠,李松敏,叶澜涛.盐碱地滴灌玉米体内Na+、K+、Ca2+、Mg2+的分布及运移特征[J].节水灌溉,2019(5):77-82. |
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| 作者姓名： | 刘帆 周青云 张宝忠 李松敏 叶澜涛 |
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| 作者单位： | 天津农学院水利工程学院;中国水利水电科学研究院流域水循环模拟与调控国家重点实验室;国家节水灌溉北京工程技术研究中心 |
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| 基金项目： | 国家自然科学基金项目(51609170,51379217) |
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| 摘 要： | 探求作物体内盐分离子的分布及运移特征对盐碱地作物产量提高具有重要意义。以玉米为试验材料,研究2种灌水处理下(IS:40mm;ID:80mm)Na^+、K^+、Ca^2+、Mg^2+含量在玉米不同生育期和不同器官的分布及运移特征。结果表明:全生育期内玉米体内Na^+、K^+含量均为IS>ID,Na^+、K^+含量随灌水量增大而减少;2种灌水处理下玉米体内阳离子含量均表现为K^+>Ca^2+>Mg^2+>Na^+;玉米不同器官的Na^+、K^+、Ca^2+、Mg^2+含量不同,2种灌水处理下Ca^2+、Mg^2+含量均为根>叶>茎,Na^+含量为根>茎>叶,K^+含量与Ca^2+、Mg^2+相反;在根向茎运输离子的过程中,玉米主要通过K^+抑制Na^+向上运输,体内保持较高的K^+含量/Na^+含量值,在茎向叶运输离子的过程中,玉米主要通过Ca^2+抑制Na^+;ID处理下玉米体内盐分阳离子含量较小,运输选择性系数较小。
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| 关 键 词： | 玉米滴灌 灌水量 盐分阳离子 运输选择性系数 |
Distribution and Transport Characteristics of Na+,K+,Ca2+,Mg2+ in Maize under Drip Irrigateion Saline Land |
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| LIU Fan,ZHOU Qing-yun,ZHANG Bao-zhong,LI Song-min,YE Lan-tao.Distribution and Transport Characteristics of Na+,K+,Ca2+,Mg2+ in Maize under Drip Irrigateion Saline Land[J].Water Saving Irrigation,2019(5):77-82. |
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| Authors: | LIU Fan ZHOU Qing-yun ZHANG Bao-zhong LI Song-min YE Lan-tao |
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| Institution: | (College of Water Conservancy Engineering,Tianjin Agricultural University,Tianjin 300384,China;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research,Beijing 100083,China;National Center of Efficient Irrigation Engineering and Technology Research-Beijing,Beijing 100083,China) |
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| Abstract: | LIU Fan;ZHOU Qing-yun;ZHANG Bao-zhong;LI Song-min;YE Lan-tao(College of Water Conservancy Engineering,Tianjin Agricultural University,Tianjin 300384,China;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research,Beijing 100083,China;National Center of Efficient Irrigation Engineering and Technology Research-Beijing,Beijing 100083,China) |
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| Keywords: | maize drip irrigation irrigation amount salt cation transport selectivity coefficient |
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