Irrigation means the artificial provision of water to fields in order to enable or intensify plant growth. It supported cultivation in rain-fed regions (attested as early as the 5th millennium BC in western Iran), but its primary significance was in areas whose productivity depended entirely on it, their own rainfall never being sufficient, such as the Nile Valley and the middle and lower reaches of the Euph…
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Nissen, Hans Jörg (Berlin) and
Rathbone, Dominic (London),
Brill’s New Pauly, Antiquity volumes edited by: Hubert Cancik and , Helmuth Schneider, English Edition by: Christine F. Salazar, Classical Tradition volumes edited by: Manfred Landfester, English Edition by: Francis G. Gentry.
Consulted online on 09 April 2020 <http://dx.doi.org/10.1163/1574-9347_bnp_e216280>