| 内蒙古主要灌区春小麦、春玉米农田优化灌溉指标研究 |
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| 引用本文： | 侯琼,沈建国.内蒙古主要灌区春小麦、春玉米农田优化灌溉指标研究[J].干旱地区农业研究,2001,19(1):33-39. |
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| 作者姓名： | 侯琼 沈建国 |
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| 作者单位： | 1. 内蒙古气象科学研究所，内蒙古 呼和浩特 010051
2. 内蒙古气象局，内蒙古 呼和浩特 010051 |
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| 基金项目： | “九五”内蒙古科技攻关项目：“半干旱区水资源综合利用决策服务系统研究”课题(970124)部分内容 |
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| 摘 要： | 根据田间试验资料，在系统分析土壤相对有效含水量Ar和耗水量与产量、灌溉量与WUE及需水关键期Ar与WUE关系的基础上，提出适合内蒙古主要灌区春小麦、春玉米不同发育时期农田水分优化灌溉指标，即苗期、孕穗开花期和灌浆期春小麦的灌溉指标分别为Ar60%、70%和55%，春玉米的灌溉指标分别为Ar60%、75%和60%。同时给出了供试作物适宜耗水量、灌水量及WUE最高时的Ar等参数。
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| 关 键 词： | 灌溉指标 土壤相对有效含水量 春小麦 春玉米 内蒙古 灌区 |
| 文章编号： | 1000-7601(2001)01-0033-07 |
| 修稿时间： | 2000年7月24日 |
A study on optimal irrigation index for spring wheat and maize in major irrigation area of Inner Mongolia |
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| HOU Qiong.A study on optimal irrigation index for spring wheat and maize in major irrigation area of Inner Mongolia[J].Agricultural Research in the Arid Areas,2001,19(1):33-39. |
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| Authors: | HOU Qiong |
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| Abstract: | Based on field experiments, the relationship between soilrelative effective moisture content Ar and water consumption amount with yield was analyzed. Also the relationship of WUE with both irrigation amount and Ar in the crux period were studied. As a result, the optimal irrigation index for spring wheat and maize during different growth period in major irrigation area was proposed. They are seedling stage, booting-flowering stage and filling stage which is Ar 60%, 70% and 55% for spring wheat, an Ar 60%, 75% and 60% for spring maize respectively. In the meantime, the optimal water consumption, irrigation amount and Ar in high WUE for experimental crop were determined. |
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