| 以土水势为灌溉指标的水稻节水灌溉研究 |
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| 引用本文： | 李亚龙,崔远来,李远华,梁志宸.以土水势为灌溉指标的水稻节水灌溉研究[J].灌溉排水学报,2004,23(5):14-17. |
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| 作者姓名： | 李亚龙 崔远来 李远华 梁志宸 |
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| 作者单位： | 水资源与水电工程科学国家重点实验室,湖北,武汉,430072;水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 基金项目： | "863"计划项目部分研究内容(2002AA2Z4331) |
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| 摘 要： | 2002年5月～10月在河南省惠北试验站进行大田试验,以土水势为灌水下限控制指标,研究了不同水分胁迫条件下的中稻生物效应和水分生产率。结果表明:水分胁迫通过对不同生长阶段根、茎、叶等器官生长发育的影响和降低有效分蘖数而最终影响水稻产量。与传统灌溉相比,以土水势-30kPa为灌水下限控制指标,对产量无显著影响,且可以大大节约灌水量,提高水分生产率,是该地区中稻较为适宜的灌水制度。
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| 关 键 词： | 土水势 水稻 节水 灌溉指标 水分生产率 |
| 文章编号： | 1000-646X(2004)05-0014-03 |
| 修稿时间： | 2004年6月3日 |
Research on Water Saving Irrigation by Using Soil Water Potential as Irrigation Criterion |
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| LI Ya-long,CUI Yuan-lai,LI Yuan-hua,LIANG Zhi-chen Wuhan university,Wuhan ,China, .National Center for Irrigation and Drainage Development,Ministry of Water Resources,Beijing ,China, .Henan Provincial Water Conservancy Research Institute,Zhenzhou ,China.Research on Water Saving Irrigation by Using Soil Water Potential as Irrigation Criterion[J].Journal of Irrigation and Drainage,2004,23(5):14-17. |
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| Authors: | LI Ya-long CUI Yuan-lai LI Yuan-hua LIANG Zhi-chen Wuhan university Wuhan China National Center for Irrigation and Drainage Development Ministry of Water Resources Beijing China Henan Provincial Water Conservancy Research Institute Zhenzhou China |
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| Institution: | LI Ya-long~1,CUI Yuan-lai~1,LI Yuan-hua~2,LIANG Zhi-chen~3 Wuhan university,Wuhan 430072,China, 2.National Center for Irrigation and Drainage Development,Ministry of Water Resources,Beijing 100053,China, 3.Henan Provincial Water Conservancy Research Institute,Zhenzhou 450003,China) |
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| Abstract: | In order to investigate the effects of different water regimes on the growth and development, yield, as well as water productivity of rice, the experiment was carried out in the plots at Huibei irrigation experiment station, Kaifeng, Henan province, during June to October in 2002. The results follow that: water stress reduced rice yield by affecting the growth and development of root, stem, and leaf et al in different growth periods and by decreasing the effective tillers. Contrast to the traditional irrigation regime, irrigating when the soil water potential is below -30 kPa had no significant effect on yield, however would greatly save irrigation water and improve water productivity. It would be the optimal rice irrigation regime rice in this area. |
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| Keywords: | soil water potential rice water saving irrigation criterion water productivity |
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