| 不同生育期灌水和施氮对春玉米农田硝态氮迁移及产量的影响 |
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| 引用本文： | 冯磊磊,张富仓,雷艳,寇雯萍.不同生育期灌水和施氮对春玉米农田硝态氮迁移及产量的影响[J].中国农村水利水电,2010,0(4):54-57. |
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| 作者姓名： | 冯磊磊 张富仓 雷艳 寇雯萍 |
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| 作者单位： | 西北农林科技大学旱区农业水土工程教育部重点实验室,陕西,杨凌,712100 |
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| 摘 要： | 通过对大田春玉米进行不同生育期灌水和施氮处理,研究了不同灌水和施氮对玉米农田硝态氮运移和产量的影响。结果表明:生物产量和籽粒产量及其灌溉水利用效率有随施氮量增加而增大的趋势。与全生育期灌水比较,任何生育期不灌水处理都造成生物产量和籽粒产量降低,而生育期不灌水处理增加了灌溉水利用效率,两个生育期不灌水处理的生物产量和籽粒产量的灌溉水利用效率最高。在春玉米生长阶段,拔节期,抽穗期和成熟期不灌水对生物产量影响显著,抽穗期不灌水、苗期与灌浆期不灌水、拔节期期和灌浆期不灌水处理显著影响籽粒产量。
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| 关 键 词： | 不同生育期灌溉 春玉米 硝态氮迁移 产量 灌溉水利用效率。 |
| 收稿时间： | 2009-12-15 |
| 修稿时间： | 2010-01-06 |
Effect of Irrigation at Different Growth Period and Nitrogen Fertilizer on Transfer of Nitrate Nitrogen and Yield of the Spring Maize |
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| FENG Lei-lei
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ZHANG Fu-cang
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LEI Yan
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KOU Wen-ping.Effect of Irrigation at Different Growth Period and Nitrogen Fertilizer on Transfer of Nitrate Nitrogen and Yield of the Spring Maize[J].China Rural Water and Hydropower,2010,0(4):54-57. |
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| Authors: | FENG Lei-lei ZHANG Fu-cang LEI Yan KOU Wen-ping |
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| Institution: | FENG Lei-lei,ZHANG Fu-cang,LEI Yan,KOU Wen-ping(Key Laboratory of Agricultural Soil , Water Engineering in Arid , Semiarid Areas,Ministry of Education,Northwest Agricultural , Forestry University,Yangling 712100,Shaanxi Province,China) |
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| Abstract: | The field experiment is conducted to study the effect of different irrigations at different growth stages and nitrogen treatments on the transfer of nitrate nitrogen in the field soil profile and yield.The results show that the irrigation water use efficiency based on biological yield and grain yield increases as nitrogen fertilizer rate.The biological and grain yield decreases and the irrigation water use efficiency increases with non-irrigation at any growth period,especially for the treatment of non-irri... |
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| Keywords: | irrigation at different growth stages spring maize transfer of NO-_3-N yield irrigation water use efficiency |
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