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Effect of Deficit Irrigation on Yield and Water Use Efficiency of Maize at Indris Irrigation Scheme in Western Oromia, Ethiopia

Water shortages are a critical issue in the agricultural sector. An experiment was conducted in the field to evaluate the effects of deficit irrigation on maize yields and water productivity. There was a significant (P<0.01) effect of deficit irrigation levels on yield and yield component parameters. A maximum grain yield of 5346.9 kg/ha and a lowest grain yield of 3061.5 kg/ha were obtained with 100% ETC and 50% ETC, respectively. It was found that 50% ETC produced the maximum irrigation water use efficiency (1.08 kg/m3) and 100% ETC produced the minimum irrigation water use efficiency (0.94 kg/m3). According to the economic analysis, applying 75% ETC under conventional furrow irrigation systems is economically feasible for small-scale farmers. As a result, applying 75% ETC to conventional furrows allowed for a water savings of 1288.8 m3/ha, which was then used to irrigate an additional 0.33 ha that could be used for downstream irrigation users in irrigation scheme.

Irrigation Level, Water Use Efficiency, Maize, Indris Irrigation Scheme, Conventional Furrow

Gudeta Genemo, Eshetu Mokonen, Habtamu Bedane. (2023). Effect of Deficit Irrigation on Yield and Water Use Efficiency of Maize at Indris Irrigation Scheme in Western Oromia, Ethiopia. International Journal of Engineering Management, 7(1), 9-14.

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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