| 干旱环境条件下春小麦适度调亏灌溉的产量效应 |
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| 引用本文： | 张步翀,李凤民,黄高宝,成自勇,刘普海.干旱环境条件下春小麦适度调亏灌溉的产量效应[J].灌溉排水学报,2005,24(6):38-40. |
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| 作者姓名： | 张步翀 李凤民 黄高宝 成自勇 刘普海 |
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| 作者单位： | 兰州大学,干旱农业生态重点实验室,甘肃,兰州,730000;甘肃农业大学,水利水电工程系,甘肃,兰州,730070;兰州大学,干旱农业生态重点实验室,甘肃,兰州,730000;甘肃农业大学,农学院,甘肃,兰州,730070;甘肃农业大学,水利水电工程系,甘肃,兰州,730070 |
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| 基金项目： | 国家重点基础研究发展规划资助项目(G2000018603)，国家“863”计划资助项目(2002AA2Z4191) |
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| 摘 要： | 在干旱环境条件下,春小麦调亏灌溉不仅具有显著的增产效应(16.6%~25.0%),其节水效果亦很显著(14.0%~22.9%)。无论是小麦籽粒产量,收获指数,还是水分利用效率,调亏灌溉处理与充分供水对照间均存在显著差异,但调亏处理间差异不显著。此外,回归分析发现,试验条件下调亏灌溉春小麦产量与收获指数线性相关,而水分利用效率与收获指数、产量间则呈二次抛物线关系。
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| 关 键 词： | 调亏灌溉 籽粒产量 收获指数 水分利用效率 干旱 春小麦 |
| 文章编号： | 1000-646X(2005)06-0038-03 |
| 修稿时间： | 2004年11月24 |
Effects of Properly Regulated Deficit Irrigation on Grain Yield of Spring Wheat in an Arid Environment |
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| ZHANG Bu-chong,LI Feng-min,HUANG Gao-bao,CHENG Zi-yong,LIU Pu-hai.Effects of Properly Regulated Deficit Irrigation on Grain Yield of Spring Wheat in an Arid Environment[J].Journal of Irrigation and Drainage,2005,24(6):38-40. |
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| Authors: | ZHANG Bu-chong LI Feng-min HUANG Gao-bao CHENG Zi-yong LIU Pu-hai |
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| Institution: | ZHANG Bu-chong~ |
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| Abstract: | In arid environment regulated deficit irrigation had significant yield increase and water-saving effects on spring wheat,which was 16.6%～25.0% and 14.0%～22.9%.Significances occurred between regulated deficit irrigation treatments and the no-soil-water-deficit control in grain yield,harvest index(HI),and water use efficiency(WUE) of wheat,but no significant differences were found within regulated deficit irrigation treatments.In addition,regression analysis indicated a linear correlation between yield and HI under regulated deficit irrigation,but the relationship between WUE and HI,yield were quadratic. |
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| Keywords: | regulated deficit irrigation grain yield harvest index water use efficiency arid environment spring wheat |
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