WANG Yong.Effect of the Supplemental Irrigation of Harvested Rainwater on Dryland Winter Wheat Yield and Water Use[J].Research of Soil and Water Conservation,2003,10(01):104-105,117.
集雨补灌对旱地冬小麦产量和水分利用的影响
- Title:
- Effect of the Supplemental Irrigation of Harvested Rainwater on Dryland Winter Wheat Yield and Water Use
- 分类号:
- S273.1;S512.11
- 摘要:
- 试验结果表明：集雨补灌显着提高了冬小麦产量和水分利用效率，蒸腾速率增大。无论是干旱年份或正常年份，集雨补灌的最佳时期均为拔节期，此期补灌12.24mm，较其它时期等量供水的供水效率提高2～6倍，表现出需水关键期有限水分供给的高效性。
- Abstract:
- The field test results showed that supplemental irrigation of harvested rainwate increased winter wheat yield and water use efficientcy (WUE), as well as the rate of transpiration remarkably.No matter in dry years or regular years, the best period of irrigation was jointing period, then irrigating 12.24 mm in this period it could increase 2~6 times of IWUE than in other period.It showed that the limited water supply in key period of water wanting was high efficient and effective.
参考文献/References:
[1] 李凤民, 等.黄土高原半干旱地区春小麦农田有限灌溉对策初探[J].应用生态学报, 1995, 6(3):259-264.
[2] 高世铭, 等.半干旱区春小麦水分亏缺补偿效应研究[J].西北植物学报, 1995, 15(8):32-39.
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备注/Memo
收稿日期:2002-11-25
基金项目:国家科技攻关项目（2001BA508B18）
作者简介:王勇（1964- ），男，副研究员，主要从事旱地作物栽培与耕作研究工作。