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Scoping of promising land management and water use practices in the dry areas of Uzbekistan

Mirzokhid Mirshadiev, Luuk Fleskens, Jos van Dam and Alim Pulatov

Agricultural Water Management, 2018, vol. 207, issue C, 15-25

Abstract: Addressing water scarcity in dryland areas requires identification of promising water-saving practices. This paper reviews the effect of land management and water use practices on Water Productivity (WP) in Uzbekistan and makes an inventory of strengths and constraints. Peer-reviewed articles were screened for various local practices including furrow, deficit and drip irrigation. The performance of practices was analysed using the WP concept, defined as ratio of crop yield per unit of water consumed (irrigation water supply and evapotranspiration). Strengths, weaknesses, opportunities and threats (SWOT) of selected practices were studied by conducting semi-structured interviews with local stakeholders in Tashkent province. This scoping process showed that overall drip irrigationhas the highest potential to improve WP in comparison with deficit and furrow irrigation, with a WP supply and WP evapotranspiration for cotton of 1.44 and 1.70 kg m−3, respectively. An excess use of irrigation water is not necessarily leading to increased cotton yield. There is an opportunity to decrease the gap between low and high values of WP, which vary from 0.12–1.44 kg m−3 for cotton.

Keywords: Water productivity; Furrow irrigation; Deficit irrigation; Drip irrigation; Water saving; SWOT (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1016/j.agwat.2018.05.015

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