globalchange  > 气候变化与战略
DOI: 10.1016/j.scienta.2019.108908
论文题名:
Applying nutrient dynamics to adjust the nutrient-water balance in hydroponic crops. A case study with open hydroponic tomato crops from Barcelona
作者: Sanjuan-Delmás D.; Josa A.; Muñoz P.; Gassó S.; Rieradevall J.; Gabarrell X.
刊名: Scientia Horticulturae
ISSN: 3044238
出版年: 2020
卷: 261
语种: 英语
英文关键词: Fertigation ; Industrial ecology ; Nutrient budget ; Phosphorus ; Substance flow analysis ; Substrate
Scopus关键词: fertilizer application ; food production ; global perspective ; hydroponics ; industrial ecology ; metabolism ; nutrient budget ; nutrient dynamics ; nutrient uptake ; phosphorus ; substrate ; vegetable ; Barcelona [Catalonia] ; Catalonia ; Spain ; Lycopersicon esculentum
英文摘要: Background: Global food production systems generate impacts such as eutrophication, caused by nutrient run-off from agricultural exploitations and exacerbated by climate change. Hydroponic cultivation methods are common in Mediterranean areas, although there is a gap in the literature with regard to their study. This study aims to fill that gap, by assessing nutrient flows in hydroponic crops. Results: The results showed that most of the nutrients were drained with the leachates (51% on average), a figure which could be lower, if the nutrient supply were adjusted to the needs of the plants or if (closed hydroponic) nutrient recirculation were implemented, without compromising the nutrient uptake of the plant. Moreover, the study revealed that a significant quantity of nutrients was retained in the substrate (perlite) during the crop, reaching average values of 5% of incoming calcium, 6% of nitrogen, and 7% of phosphorus. In the case of phosphorus and calcium, a regression model is presented for the estimation of their retention in hydroponic crops. Conclusions: Although further studies will be needed to confirm the above trends, the study makes a significant contribution to understanding the metabolism of nutrients in hydroponic crops and to finer adjustments of the nutrient balance. © 2019 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159361
Appears in Collections:气候变化与战略

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作者单位: Sostenipra Research Group (SGR 01412), Institute of Environmental Sciences and Technology (MDM-2015-0552), Universitat Autònoma de Barcelona (UAB), Z Building, Campus UAB, Bellaterra, Barcelona, 08193, Spain; Ghent University, Faculty of Bioscience Engineering, Department of Green Chemistry and Technology, Sustainable Systems Engineering Group (STEN), Coupure Links 653, Blok B – 5th floor, Ghent, Belgium; Department of Civil and Environmental Engineering (DECA), School of Civil Engineering (Escola de Camins), Universitat Politècnica de Catalunya, UPC, Jordi Girona 1-3, Barcelona, 08034, Spain; Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona (UAB), Building Q, Bellaterra, Barcelona, 08193, Spain; Group of Construction Research and Innovation (GRIC), Universitat Politècnica de Catalunya, UPC, Colom 11, Building TR5, Terrassa, Barcelona, 08222, Spain; Department of Chemical, Biological and Environmental Engineering, (Catalan Biotechnology Reference Network -XRB-), Universitat Autònoma de Barcelona (UAB), Campus UAB, Bellaterra, Barcelona, 08193, Spain

Recommended Citation:
Sanjuan-Delmás D.,Josa A.,Muñoz P.,et al. Applying nutrient dynamics to adjust the nutrient-water balance in hydroponic crops. A case study with open hydroponic tomato crops from Barcelona[J]. Scientia Horticulturae,2020-01-01,261
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