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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (23): 177-180.

所属专题： 玉米； 农业气象

• 农学 农业基础科学 • 上一篇    下一篇

辽西半干旱区春玉米节水高产技术集成模式研究

尹光华1,沈业杰1,2,张法升1,2,佟娜1,2,刘作新1   

  • 收稿日期:2010-06-21 修回日期:2010-10-28 出版日期:2010-12-05 发布日期:2010-12-05
  • 基金资助:

    辽宁省农业攻关计划重大项目;辽宁省节水农业重点实验室基金课题;辽宁省博士启动基金课题

Patterns of Techniques Integration for Water-saving and High Yield on Spring Maize in Semi-arid Area of West Liaoning

  • Received:2010-06-21 Revised:2010-10-28 Online:2010-12-05 Published:2010-12-05

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摘要：

此文针对辽西半干旱区农业生产因年降水量少且分布不均，使得春玉米种植低产低效的问题，集成了覆膜保苗节水模式和露地坐水种补灌节水模式，并对两种模式在田间进行了应用效果验证。应用结果表明，两种模式应用较对照均能显著提高籽粒产量、水分利用效率及经济效益：产量分别较对照增加48.5%和49.9%，水分利用效率提高30.9%和21.4%，经济效益增加34.7%和33.7%。集成模式适宜于试验区玉米生产中推广应用。

关键词: 非点源污染, 非点源污染, 土地利用, 相关性, 预测, 应用

Abstract:

Crop yield and economic benefit are very low because of low annual precipitation and its uneven distribution in semi-arid area, west Liaoning. This study aimed to seek suitability of some key water-saving techniques and their integrating patterns. Two patterns were integrated. Of which, one named the water-saving planting pattern of film mulching and limited supplementary irrigation grates in mulching cultivation. While another was called the water-saving planting pattern of irrigating-sowing and limited supplementary irrigation in open cultivation. It showed that the yield, water use efficiency and economic benefits using the two patterns were higher than checked by 30.9% and 21.4%, 48.5% and 49.9%, 34.7% and 33.7%, respectively. It also suggested that these two patterns were suitable for the semi-arid area of west Liaoning.

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