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Assessing concerns about fertigation costs with desalinated seawater in south-eastern Spain

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  • Martínez-Alvarez, V.
  • Gallego-Elvira, B.
  • Maestre-Valero, J.F.
  • Martin-Gorriz, B.
  • Soto-Garcia, M.

Abstract

Desalinated sea water (DSW) provides a steady agricultural water supply that overcomes climatological and hydrological constraints, fostering food security and socio-economic stability in water-stressed regions. In the last decade, seawater desalination for irrigation has been massively implemented in south-eastern (SE) Spain amid rising pressure and competition for water resources. However, farmers seem reluctant to replace conventional water sources with DSW due to its higher price and the need for additional fertilization. This article assesses how fertigation cost increases can affect farming profitability when integrating DSW for irrigation. The increases in water and fertilizer costs of totally (100 %) and partially (50 %) replacing conventional water with DSW were calculated for the most representative crops of the Segura basin in SE Spain.

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  • Martínez-Alvarez, V. & Gallego-Elvira, B. & Maestre-Valero, J.F. & Martin-Gorriz, B. & Soto-Garcia, M., 2020. "Assessing concerns about fertigation costs with desalinated seawater in south-eastern Spain," Agricultural Water Management, Elsevier, vol. 239(C).
    • Handle: RePEc:eee:agiwat:v:239:y:2020:i:c:s0378377420304121
    DOI: 10.1016/j.agwat.2020.106257
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    References listed on IDEAS

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    1. Soto-García, M. & Martínez-Alvarez, V. & García-Bastida, P.A. & Alcon, F. & Martin-Gorriz, B., 2013. "Effect of water scarcity and modernisation on the performance of irrigation districts in south-eastern Spain," Agricultural Water Management, Elsevier, vol. 124(C), pages 11-19.
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    3. Soto-García, M. & Martin-Gorriz, B. & García-Bastida, P.A. & Alcon, F. & Martínez-Alvarez, V., 2013. "Energy consumption for crop irrigation in a semiarid climate (south-eastern Spain)," Energy, Elsevier, vol. 55(C), pages 1084-1093.
    4. Reca, J. & Trillo, C. & Sánchez, J.A. & Martínez, J. & Valera, D., 2018. "Optimization model for on-farm irrigation management of Mediterranean greenhouse crops using desalinated and saline water from different sources," Agricultural Systems, Elsevier, vol. 166(C), pages 173-183.
    5. Maestre-Valero, J.F. & Martin-Gorriz, B. & Soto-García, M. & Martinez-Mate, M.A. & Martinez-Alvarez, V., 2018. "Producing lettuce in soil-based or in soilless outdoor systems. Which is more economically profitable?," Agricultural Water Management, Elsevier, vol. 206(C), pages 48-55.
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    Cited by:

    1. Puccinelli, Martina & Carmassi, Giulia & Pardossi, Alberto & Incrocci, Luca, 2023. "Wild edible plant species grown hydroponically with crop drainage water in a Mediterranean climate: Crop yield, leaf quality, and use of water and nutrients," Agricultural Water Management, Elsevier, vol. 282(C).
    2. Gallego-Elvira, B. & Reca, J. & Martin-Gorriz, B. & Maestre-Valero, J.F. & Martínez-Alvarez, V., 2021. "Irriblend-DSW: A decision support tool for the optimal blending of desalinated and conventional irrigation waters in dry regions," Agricultural Water Management, Elsevier, vol. 255(C).

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