| 不同灌溉方式及间作对小麦产量及边际效应的影响 |
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| 引用本文： | 罗照霞,柴强.不同灌溉方式及间作对小麦产量及边际效应的影响[J].甘肃农业大学学报,2009,44(1). |
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| 作者姓名： | 罗照霞 柴强 |
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| 作者单位： | 甘肃农业大学农学院,甘肃,兰州,730070 |
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| 基金项目： | 国家自然科学基金，国家科技支撑计划，甘肃省中青基金 |
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| 摘 要： | 采用大田试验,研究了低、中、高灌水水平下交替灌溉间作小麦和单作小麦的产量及边行效应.结果表明:交替灌溉间作小麦在低、中、高灌水水平下的经济产量分别较单作高20.96%、28.34%、33.11%,小麦经济产量随着灌水水平的提高而增大.间作小麦在3个灌水水平下的边行产量均高于相应灌水水平下的单作小麦,间作小麦的边行优势在高灌水下更明显;小麦收获指数、千粒质量、产量在间作和单作中从边一行至边三行呈递减趋势,高灌水水平下边一行较边二行和边三行增产效果明显高于低、中灌水水平.间作是形成小麦产量和边行优势的主要原因.
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| 关 键 词： | 交替灌溉 小麦 玉米 间作 边际效应 |
Effect of irrigation pattern and intercropping on yield and edge effect of wheat |
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| LUO Zhao-xia,CHAI Qiang.Effect of irrigation pattern and intercropping on yield and edge effect of wheat[J].Journal of Gansu Agricultural University,2009,44(1). |
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| Authors: | LUO Zhao-xia CHAI Qiang |
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| Institution: | LUO Zhao-xia,CHAI Qiang(College of Agronomy,Gansu Agricultural University,Lanzhou 730070,China) |
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| Abstract: | An experiment was carried at three rates of irrigation amount(low,middle and high,in order to investigate the effect of irrigation patterns and intercropping on the yield and edge effect of wheat.The results showed that intercropping combined with alternative irrigation significantly increased the yield of wheat compared to the sole cropping with flood irrigated wheat,it was increased by 20.96%,28.34%,33.11% at the irrigation rate of low,medium,high respectively;and the yield of wheat increased with the imp... |
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| Keywords: | alternative irrigation wheat maize intercropping edge effect |
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