| 覆膜棉花调亏灌溉效应研究 |
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| 引用本文： | 张振华,蔡焕杰.覆膜棉花调亏灌溉效应研究[J].西北农林科技大学学报(社会科学版),2001,29(6):9-12. |
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| 作者姓名： | 张振华 蔡焕杰 |
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| 作者单位： | 西北农林科技大学 |
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| 基金项目： | 高等学校博士点基金资助项目(980704) |
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| 摘 要： | 通过系统的田间试验 ,确定膜上灌条件下棉花调亏灌溉施加水分胁迫的适宜时期和土壤水分亏缺限值。各处理棉花的耗水量及产量实测结果表明 ,蕾期适度的水分亏缺处理较对照丰水处理全生育期节水11.83% ,皮棉产量和水分利用效率分别提高 2 2 .83%和 39.2 6 % ,调亏灌溉对棉花具有显著的节水增产和提高水分利用效率的效应。
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| 关 键 词： | 膜上灌 调亏灌溉 节水增产 棉花 |
| 文章编号： | 1000-2782(2001)06-009-04 |
| 收稿时间： | 2000/11/28 0:00:00 |
Effects of regulated deficit irrigation on plastic-mulched cotton |
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| ZHANG Zhen-hua,CAI Huan-jie.Effects of regulated deficit irrigation on plastic-mulched cotton[J].Journal of Northwest Sci-Tech Univ of Agr and,2001,29(6):9-12. |
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| Authors: | ZHANG Zhen-hua CAI Huan-jie |
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| Institution: | (The Key Laboratory of Agricultural Soil and Water Engineering,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China) |
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| Abstract: | In this study,with the aid of different irrigation treatments,a range of soil and plant water deficits were imposed on plastic-mulched cotton in order to study the response of yield to water stress.Based on the field experimental data of regulated deficit irrigation for cotton in 1998,effects of water stress on yield formation and water use efficiency of cotton were studied.The results show that water stress at various growing stages of cotton causes different influence on lint yield:a mild water deficits during budding stage can enhance lint yield and improve water use efficiency. |
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| Keywords: | irrigation on the plastic-mulched land regulated deficit irrigation the effects of water-saving and yield-increasing cotton |
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