Irrigation water use
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Perry, C.J., Steduto, P., Allen, R.G., and Burt, C.M. 2009. Increasing productivity in irrigated agriculture: Agronomic constraints and hydrological realities. Agricultural Water Management 96, 1517-1524.
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Siebert, S., Döll, P., Feick, S., Hoogeveen, J. and Frenken, K. 2007. Global map of irrigation areas version 4.0.1. Johann Wolfgang Goethe University, Frankfurt am Main, Germany / FAO, Rome. FAO Land and Water Digital Media Series No. 34.
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