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Effect of Saline Water Irrigation on Soil Moisture and Salinity and Modeling Transpiration of Greenhouse-Grown Tomato in Response to Salt Stress

文献类型： 外文期刊

作者： Wang, Lichun 1 ; Li, Youli 2 ; Han, Qibiao 1 ; Yin, Shiyang 3 ; Guo, Wenzhong 2 ;

作者机构： 1.Chinese Acad Agr Sci, Key Lab Water Saving Agr Henan Prov, Farmland Irrigat Res Inst, Xinxiang, Henan, Peoples R China

2.Beijing Res Ctr Intelligent Equipment Agr, Beijing, Peoples R China

3.North China Elect Power Univ, Beijing, Peoples R China

4.Minist Agr, Key Lab Urban Agr North China, Beijing, Peoples R China

关键词： Salt stress; Tomato; Saline water irrigation; Greenhouse; Transpiration model

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）

ISSN： 1560-8530

年卷期： 2020 年 24 卷 1 期

页码：

收录情况： SCI

摘要： Fresh water shortage is a major limiting factor for the development of greenhouse agriculture in arid regions. Brackish or saline water irrigation is an important approach to address this issue. However, the salts from irrigation water are also brought into the soil. If the salts accumulate in the crop root zone, it may have a negative effect on crop growth. In this study, a greenhouse experiment was carried out to evaluate the influence of saline water irrigation on soil moisture and salinity and to examine the response of tomato transpiration to salt stress. The treatments comprised of three salinity levels (0.4 g L-1 (fresh water; control), 3.4 g L-1 and 6.4 g L-(1;) denoted as T1, T2 and T3, respectively). Results showed that saline water irrigation significantly increased soil moisture and salinity, while no obvious difference was observed in root length density distribution among the treatments. Further, a method was developed to optimize the parameters in tomato transpiration model using the data from T3 treatment and the results were validated using the data from T2 treatment We found that the optimized model could well simulate the effects of salt accumulation on tomato transpiration. Overall, our results would provide theoretical and technical support for soil salt regulation and sustainable saline water utilization for greenhouse agricultural production. (C) 2020 Friends Science Publishers

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