| 灌溉方式对温室黄瓜灌溉水分配及硝态氮运移的影响 |
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| 引用本文： | 韦 彦,孙丽萍,王树忠,王永泉,张振贤,陈青云,任华中,高丽红.灌溉方式对温室黄瓜灌溉水分配及硝态氮运移的影响[J].农业工程学报,2010,26(8):67-72. |
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| 作者姓名： | 韦 彦 孙丽萍 王树忠 王永泉 张振贤 陈青云 任华中 高丽红 |
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| 作者单位： | 1. 中国农业大学蔬菜系,北京,100193
2. 北京市农业技术推广站,北京,100101 |
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| 基金项目： | “十一五”国家科技支撑计划（2008BADA6B03，2006BAD07B04）；国家自然基金重点项目（50939005） |
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| 摘 要： | 为了揭示灌溉方式对日光温室黄瓜灌溉水分配及硝态氮运移的影响，该文以津育5号黄瓜为试材，研究了畦灌、滴灌和渗灌3种灌溉条件下灌溉水的去向、硝态氮淋洗、根层土壤硝态氮运移、根系分布及产量和水分利用效率。结果表明，滴灌和渗灌减少了水分深层渗漏量和土面蒸发量，增加了植株蒸腾量，促使更多的水分被植株吸收利用；滴灌和渗灌分别节水25.9%和32.0%，增产11.6%和15.3%，水分利用效率提高49.9%和68.7%；并减少了硝态氮的淋洗量，促使养分更多的分布于根层，对保护地下水环境具有重要意义。
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| 关 键 词： | 灌溉，水分，温室，黄瓜，硝态氮，产量，水分利用效率 |
| 收稿时间： | 2009/10/6 0:00:00 |
| 修稿时间： | 2009/12/20 0:00:00 |
Effects of different irrigation methods on water distribution and nitrate nitrogen transport of cucumber in greenhouse |
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| Wei Yan,Sun Liping,Wang Shuzhong,Wang Yongquan,Zhang Zhenxian,Chen Qingyun,Ren Huazhong,Gao Lihong.Effects of different irrigation methods on water distribution and nitrate nitrogen transport of cucumber in greenhouse[J].Transactions of the Chinese Society of Agricultural Engineering,2010,26(8):67-72. |
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| Authors: | Wei Yan Sun Liping Wang Shuzhong Wang Yongquan Zhang Zhenxian Chen Qingyun Ren Huazhong Gao Lihong |
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| Abstract: | In order to reveal the effects of different irrigation methods on water distribution and nitrate nitrogen transport in solar greenhouse, border irrigation, drip irrigation and subsurface irrigation were evaluated by using cucumber Jinyu No.5. Irrigation water distribution, nitrate leaching, root zone nitrate nitrogen transport, root distribution, yield and water use efficiency were conducted in the current study. The experiments showed that the amount of leaching and evaporation decreased but transpiration increased under drip irrigation and subsurface irrigation. As the results, compared to border irrigation, the above irrigation systems saved water by 25.9% and 32.0%, cucumber yield increased by 11.6% and 15.3% and water use efficiency (WUE) increased by 49.9% and 68.7%, respectively. The drip irrigation and subsurface irrigation also reduced the amount of nitrate leaching, and it was important to protect groundwater. |
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| Keywords: | irrigation water greenhouses cucumber NO3-N yield WUE |
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