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当前位置: 首页 > 文章 > 负水头灌溉对温室番茄植株蒸腾规律的影响 中国农学通报 2010,26 (15) 103-108
Position: Home > Articles > Effects of Negative Hydraulic Head Irrigation Method on Transpiration of Tomato In Greenhouse Chinese Agricultural Science Bulletin 2010,26 (15) 103-108

负水头灌溉对温室番茄植株蒸腾规律的影响

作  者：
张伟娟;李邵;胡跃高
单  位：
国家农业信息化工程技术研究中心;中国农业大学农学与生物技术学院
关键词：
负水头灌溉;常规灌溉;茎流;番茄;蒸腾速率
摘  要：
利用Flow32茎流计分别测定负水头灌溉和常规灌溉方式下的番茄植株蒸腾速率,探讨负水头灌溉方式对番茄植株蒸腾影响及植株蒸腾速率与太阳辐射强度之间的关系,同时分析了负水头灌溉下植株一天不同时刻耗水量差异和负水头灌溉对水分利用效率的影响。结果表明,负水头灌溉下的番茄植株蒸腾速率要大于常规漫灌,但两种灌溉方式有着相同的变化趋势,植株的蒸腾速率主要受太阳辐射强度的影响;负水头灌溉方式能为作物适时适量提供水分,且有效地减少无效地表蒸发和地下深层渗漏,提高了作物的水分利用效率。
译  名：
Effects of Negative Hydraulic Head Irrigation Method on Transpiration of Tomato In Greenhouse
作  者：
Zhang Weijuan 1,2 , Li Shao 2 , Hu Yuegao 1 ( 1 College of Agronomy and Biotechnology , China Agricultural University , Beijing 100193; 2 National Engineering Research Center for Information Technology in Agriculture , Beijing 100097)
关键词：
negative pressure irrigation; normal irrigation; sap flow; tomato; transpiration rate
摘  要：
By using Flow32 stem flow gauge to measure the tomato plant transpiration under negative pressure irrigation and normal irrigation, the effects of negative hydraulic head irrigation methods on transpiration of tomato and the relationship between plant sap flow and solar radiation intensity were discussed, the variation of water consume on different time and the effects of negative hydraulic head irrigation method on water use efficiency were analyzed. The results showed that plant transpiration under negative hydraulic head irrigation was bigger than the plant under normal irrigation, but the plant transpiration change ruler under two irrigation methods was same, the plant transpiration was influenced by solar radiation intensity; the negative hydraulic head irrigation method could supply water to plant effectively, the irrigation method could reduce invalid soil surface evaporation and underground leakage, and the water use efficiency was increased under the negative hydraulic head irrigation.

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