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Performance analysis of two typical greenhouse lettuce production systems: commercial hydroponic production and traditional soil cultivation

文献类型： 外文期刊

作者： Wang, Lichun 1 ; Ning, Songrui 2 ; Zheng, Wengang 1 ; Guo, Jingyu 3 ; Li, Youli 1 ; Li, Yinkun 1 ; Chen, Xiaoli 1 ; Ben-Gal, Alon 4 ; Wei, Xiaoming 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Intelligent Equipment Res Ctr, Beijing, Peoples R China

2.Xian Univ Technol, Key Lab Ecohydraul Northwest Arid Reg China, Xian, Peoples R China

3.Edith Cowan Univ, Coll Sci, Perth, WA, Australia

4.ARO, Gilat Res Ctr, Soil,Water & Environm Sci Agr Res Organizat Volc, Negev, Israel

关键词： buffer capacity; economic benefit; nitrate; quality; vegetable production; water productivity

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2023 年 14 卷

页码：

收录情况： SCI

摘要： IntroductionDue to the shortage of land and water resource, optimization of systems for production in commercial greenhouses is essential for sustainable vegetable supply. The performance of lettuce productivity and the economic benefit in greenhouses using a soil-based system (SBS) and a hydroponic production system (HPS) were compared in this study. MethodsExperiments were conducted in two identical greenhouses over two growth cycles (G1 and G2). Three treatments of irrigation volumes (S1, S2, and S3) were evaluated for SBS while three treatments of nutrient solution concentration (H1, H2, and H3) were evaluated for HPS; the optimal levels from each system were then compared. Results and discussionHPS was more sensitive to the effects of environmental temperature than SBS because of higher soil buffer capacity. Compared with SBS, higher yield (more than 134%) and higher water productivity (more than 50%) were observed in HPS. We detected significant increases in ascorbic acid by 28.31% and 16.67% and in soluble sugar by 57.84% and 32.23% during G1 and G2, respectively, compared with SBS. However, nitrate accumulated in HPS-grown lettuce. When the nutrient solution was replaced with fresh water 3 days before harvest, the excess nitrate content of harvested lettuce in HPS was removed. The initial investment and total operating cost in HPS were 21.76 times and 47.09% higher than those in SBS, respectively. Consideration of agronomic, quality, and economic indicators showed an overall optimal performance of the H2 treatment. These findings indicated that, in spite of its higher initial investment and requirement of advanced technology and management, HPS was more profitable than SBS for commercial lettuce production.

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