| 不同灌溉制度对覆膜春玉米的耗水规律及产量的影响 |
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| 引用本文： | 刘玉洁,李援农,潘韬,翟禄兴,杜子龙.不同灌溉制度对覆膜春玉米的耗水规律及产量的影响[J].干旱地区农业研究,2009,27(6):67-72. |
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| 作者姓名： | 刘玉洁 李援农 潘韬 翟禄兴 杜子龙 |
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| 作者单位： | 刘玉洁(中国科学院地理科学与资源研究所,北京,100101;中国科学院研究生院,北京,100049;西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100);李援农,杜子龙(西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100);潘韬(中国科学院地理科学与资源研究所,北京,100101);翟禄兴(广西师范大学环境与资源学院,广西,桂林,541004) |
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| 基金项目： | 国家"863"计划现代节水农业技术及新产品专项 |
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| 摘 要： | 研究了不同灌水定额和灌水次数处理下覆膜玉米的耗水规律和产量,试验结果表明:灌溉定额相同时,灌水次数的变化对产量有较大影响;灌溉次数较多的处理土壤平均含水率波动幅度较小,土壤水分能保持在一个比较稳定的范围.相同的灌水次数下,适当增加灌溉定额在一定程度上可增加作物产量,但超过一定值之后,产量并无显著提高.玉米的耗水量随着灌溉水量的增加而增加,玉米在拔节～抽雄、抽雄～乳熟期的耗水量最大,对水分亏缺最敏感,是需水关键期.水分利用效率随着灌溉量的增加而减少.
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| 关 键 词： | 膜孔灌溉 玉米 灌溉制度 耗水规律 产量 |
Study on effects of different irrigation treatments on evaportranspiration and yield in spring maize |
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| LIU Yujie,LI Yuannong,PAN Tao,ZHAI Luxing,DU Zilong.Study on effects of different irrigation treatments on evaportranspiration and yield in spring maize[J].Agricultural Research in the Arid Areas,2009,27(6):67-72. |
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| Authors: | LIU Yujie LI Yuannong PAN Tao ZHAI Luxing DU Zilong |
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| Institution: | LIU Yu-jie1,2,LI Yuan-nong3,PAN Tao1,ZHAI Lu-xing4,DU Zi-long3(1.Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049,3.College of Hydraulic and Architectural Engineering,Northwest A & F University,Yangling,Shaanxi 712100,4.School of Environment and Resources,Guangxi Normal University,Guilin,Guangxi 541004,China) |
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| Abstract: | A study is made on the water-consuming law and yield of spring maize under treatments of different irrigation quota on each application and frequcency.The experimental results show that with the same irrigation quota,irrigation frequency affects significantly maize yield and soil water content fluctuation of high irrigation frequency treatment changes more slowly than that of low irrigation frequency treatment,and soil water variation keeps in a stable range.With the same irrigation frequency,the yield impr... |
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| Keywords: | film-hole irrigation maize irrigation schedule water-consuming law yield |
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