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Crop Water Productivity of Irrigated Teff in a Water Stressed Region

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In water stressed regions such as the Central Rift Valley of Ethiopia, increasing Crop Water Productivity (CWP) is imperative for sustainable food and water security. This paper presents CWP of Teff (Eragrostic Tef), a staple food in Ethiopia and an important export crop. Field experiments were conducted under irrigated agriculture during the dry seasons in the periods: 1) November 2010 to March 2011; and 2) December 2011 to April, 2012 at Melkassa Agricultural Research Centre in Ethiopia. Teff crop was irrigated at sixteen different water application depths ranging from 100 to 25 % of the optimum Crop Water Evapotranspiration (ETc.) during the four growing stages, the initial, development, mid season and late season. The effect of seeding rates of 25 kg/ha and 10 kg/ha on lodging and yield of the crop was also determined. The main results were: 1) At 25 % deficit irrigation applied for the whole growth period, Teff CWP was the highest at 1.16 and 1.08 kg/m 3 respectively for the seeding rates of 25 kg/ha and 10 kg/ha; 2) the CWP slightly decreased to 1.12 and 1.07 kg/m 3 when the 25 % deficit was applied during the late season stage; 3) the crop yield response factor (K y ) of 1.09 and 1.19 was obtained for seeding rates of 25 kg/ha and 10 kg/ha respectively; the equivalent biomass response factor (K y ) was less at 0.88 and 0.96 respectively. Copyright Springer Science+Business Media Dordrecht 2013

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  • Yenesew Yihun & Abraham Haile & Bart Schultz & Teklu Erkossa, 2013. "Crop Water Productivity of Irrigated Teff in a Water Stressed Region," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(8), pages 3115-3125, June.
    • Handle: RePEc:spr:waterr:v:27:y:2013:i:8:p:3115-3125
    DOI: 10.1007/s11269-013-0336-x
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    1. Geerts, Sam & Raes, Dirk, 2009. "Deficit irrigation as an on-farm strategy to maximize crop water productivity in dry areas," Agricultural Water Management, Elsevier, vol. 96(9), pages 1275-1284, September.
    2. Ali, M.H. & Talukder, M.S.U., 2008. "Increasing water productivity in crop production--A synthesis," Agricultural Water Management, Elsevier, vol. 95(11), pages 1201-1213, November.
    3. Bessembinder, J.J.E. & Leffelaar, P.A. & Dhindwal, A.S. & Ponsioen, T.C., 2005. "Which crop and which drop, and the scope for improvement of water productivity," Agricultural Water Management, Elsevier, vol. 73(2), pages 113-130, May.
    4. Sebastian Kloss & Raji Pushpalatha & Kefasi Kamoyo & Niels Schütze, 2012. "Evaluation of Crop Models for Simulating and Optimizing Deficit Irrigation Systems in Arid and Semi-arid Countries Under Climate Variability," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(4), pages 997-1014, March.
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    3. Kifle, Mulubrehan & Gebremicael, T.G. & Girmay, Abbadi & Gebremedihin, Teferi, 2017. "Effect of surge flow and alternate irrigation on the irrigation efficiency and water productivity of onion in the semi-arid areas of North Ethiopia," Agricultural Water Management, Elsevier, vol. 187(C), pages 69-76.
    4. Kifle, Mulubrehan & Gebretsadikan, T.G., 2016. "Yield and water use efficiency of furrow irrigated potato under regulated deficit irrigation, Atsibi-Wemberta, North Ethiopia," Agricultural Water Management, Elsevier, vol. 170(C), pages 133-139.
    5. Dennis Wichelns, 2015. "Water productivity and water footprints are not helpful in determining optimal water allocations or efficient management strategies," Water International, Taylor & Francis Journals, vol. 40(7), pages 1059-1070, November.
    6. Luzian Messmer & Braida Thom & Pius Kruetli & Evans Dawoe & Kebebew Assefa & Johan Six & Jonas Joerin, 2021. "Beyond feasibility—the role of motivation to implement measures to enhance resilience," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 26(5), pages 1-24, June.
    7. Tsegay, Alemtsehay & Vanuytrecht, Eline & Abrha, Berhanu & Deckers, Jozef & Gebrehiwot, Kindeya & Raes, Dirk, 2015. "Sowing and irrigation strategies for improving rainfed tef (Eragrostis tef (Zucc.) Trotter) production in the water scarce Tigray region, Ethiopia," Agricultural Water Management, Elsevier, vol. 150(C), pages 81-91.

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