| 底墒对旱地冬小麦产量和水分利用效率的影响研究 |
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| 引用本文： | 罗俊杰,黄高宝.底墒对旱地冬小麦产量和水分利用效率的影响研究[J].灌溉排水学报,2009,28(3). |
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| 作者姓名： | 罗俊杰 黄高宝 |
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| 作者单位： | 罗俊杰,LUO Jun-jie(甘肃农业大学农学院,兰州730070;甘肃省农业科学院生物技术研究所,兰州730070);黄高宝,HUANG Gao-bao(甘肃农业大学农学院,兰州,730070)
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| 摘 要： | 针对甘肃陇东旱作雨养农业区的冬小麦产量低而不稳,水分利用效率低下,冬小麦夏季休闲期正值该区的降雨高峰期,降雨和无效蒸发同步且土壤保持水分不足的问题开展试验研究。通过夏季休闲期的地膜覆盖、集雨抑蒸,提高播前底墒,并对模拟底墒试验的产量、水分利用效率进行了研究分析得出:播前底墒对该区冬小麦产量和水分利用效率有显著的影响,通过提高底墒,对于稳定产量有较大贡献,提高生育期降水利用率,对提高产量有较大贡献。在分析多年研究资料的基础上,提出了该区冬小麦产量和播前土壤水分含量之间的模拟关系式以及冬小麦产量和生育期降雨量之间的模拟关系式。
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| 关 键 词： | 底墒 冬小麦 产量 水分利用效率 |
Effects of Different Soil Water before Sowing on Winter Wheat Yield and WUE in Semi-arid Areas |
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| LUO Jun-jie,HUANG Gao-bao.Effects of Different Soil Water before Sowing on Winter Wheat Yield and WUE in Semi-arid Areas[J].Journal of Irrigation and Drainage,2009,28(3). |
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| Authors: | LUO Jun-jie HUANG Gao-bao |
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| Institution: | 1.Agronomy College;Gansu Agriculture University;Lanzhou 730070;China;2.Agro-technolgy Institute;Gansu Academy of Agricultural Sciences;China |
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| Abstract: | The summer fallow is meeting the rainy season and evaporation fastigium which brings the insufficiency of soil stored water in eastern of Gansu rain-fed areas.Cover with plastic film in this season that collecting water and restrain from evaporation could increase the water store in soil.A experiment that focus on the summer fallow time which bare soil cover with plastic film for restoring the rainfall in the soil,the results show: soil stored water before sowing and the growing season rainfall both are mar... |
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| Keywords: | soil moisture before sowing winter wheat yield WUE |
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