半干旱偏旱地区合理轮作农田水分效应的研究

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半干旱偏旱地区合理轮作农田水分效应的研究

- 半干旱偏旱地区合理轮作农田水分效应的研究
- Bulletin of Soiland Water Conservation Vol. 9, Issue 6, Pages: 54-57(1990)
- 作者机构：
  
  1. 海原县农技推广中心
  2. 中国科学院水利部西北水土保持研究所
- 作者简介：
- 基金信息：
- DOI：
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- Published：1990
- 稿件说明：
移动端阅览
[J]. Bulletin of Soiland Water Conservation, 1990, 9(6): 54-57.
DOI：

[J]. Bulletin of Soiland Water Conservation, 1990, 9(6): 54-57. DOI：

摘要

在半干旱偏旱地区旱作农田进行合理轮作

可以提高有限降水的利用率和粮食产量水平。本试验结果是:麦豆谷轮作比连作小麦三年总增产45.8～46.8kg/亩

增产幅度36.4%～37.2%;三年增值33.81元/亩

增值幅度37.37%

水分利用效率提高0.054kg/mm

洋(芋)—糜(子)—豆轮作比连作小麦三年总增产138.1kg/亩

增产幅度1倍;三年轮作产值增加153.55元/亩

增值幅度近2倍

水分利用效率比连作小麦增加0.161kg/mm。合理轮作是本类型地区调控水分和提高生产力的有效措施。

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