Determining water use efficiency for wheat and cotton: A meta-regression analysis

Yubing Fan (fanyubing@126.com), Chenggang Wang and Zhibiao Nan

No 236059, 2016 Annual Meeting, July 31-August 2, Boston, Massachusetts from Agricultural and Applied Economics Association

Abstract: A great challenge for agricultural production is to produce more food with less water, which can be possibly achieved by increasing crop water use efficiency (WUE). We systematically reviewed 51 cases from 48 empirical studies with field experimental results on wheat and cotton. We estimated the yield-water use relations under both furrow and micro irrigation systems, compared crop water use to achieve maximum WUE and maximum yield, and evaluated the effects of many influential factors using meta-regression analysis. Our results showed significant effects of micro irrigation adoption, farm management practices focusing on crop, soil and water, and some moderator variables related with the empirical studies on crop WUE. Assessments of the publication selection bias and genuine effects illustrated the application of weighted least squares in conducting meta-regression analysis.

Keywords: Farm Management; Production Economics; Productivity Analysis (search for similar items in EconPapers)
Pages: 40
Date: 2016-05-25
New Economics Papers: this item is included in nep-agr, nep-eff and nep-env
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:ags:aaea16:236059

DOI: 10.22004/ag.econ.236059

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