Management of soil salinity associated with irrigation of protected crops

V. Phogat, Dirk Mallants, J.W. Cox, J. Šimůnek, D.P. Oliver and J. Awad

Agricultural Water Management, 2020, vol. 227, issue C

Abstract: Long-term evaluation of soil chemical changes in the soil is required to optimize irrigation of protected crops and to control associated environmental issues. In this study, the multi-component solute transport module UNSATCHEM of HYDRUS-1D was used to assess the effects of long-term (2018–2050) irrigation on salt build-up in the soil under unheated greenhouse conditions. Blended water (recycled water, artificially recharged groundwater and harvested rainwater) was used to irrigate tomato, cucumber, capsicum, and eggplant. Irrigation management included four leaching fractions (LF), i.e., accounting for 0, 15, 20, and 30% of applied excess water. The effects of four amounts of annual gypsum application, i.e. 0, 1.7, 2.6, and 3.4 t/ha, were also simulated.

Keywords: Tomato; Capsicum; Cucumber; Eggplant; UNSATCHEM; Irrigation; ESP; Salinity (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:227:y:2020:i:c:s0378377419313526

DOI: 10.1016/j.agwat.2019.105845

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