Abstract
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/m3 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/m3 when the 25 % deficit was applied during the late season stage; 3) the crop yield response factor (Ky) 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 (Ky) was less at 0.88 and 0.96 respectively.
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References
Ali M, Talukder M (2008) Increasing water productivity in crop production-a synthesis. Agric Water Manag 95(11):1201–1213
Assefa K, Merker A, Tefera H (2003) Inter simple sequence repeat (ISSR) analysis of genetic diversity in tef [Eragrostis tef (Zucc.) Trotter]. Hereditas 139(3):174–183
Bessembinder J, Leffelaar P, Dhindwal A, Ponsioen T (2005) Which crop and which drop, and the scope for improvement of water productivity. Agric Water Manag 73(2):113–130
Central Statistcal Agency (CSA) (2007) Population and housing census. Addis Ababa, Ethiopia
Evert S, Staggenborg S, Olson B (2009) Soil temperature and planting depth effects on Tef emergence. J Agron Crop Sci 195(3):232–236
FAO, F (2010) Food Agriculture Organization. 2003: State of the world’s forests. FAO, Rome
Geerts S, Raes D (2009) Deficit irrigation as an on-farm strategy to maximize crop water productivity in dry areas. Agric Water Manag 96(9):1275–1284
Habtegebrial K, Singh B (2006) Effects of timing of nitrogen and sulphur fertilizer on yield, nitrogen, and sulphur contents of tef (Eragrostis tef (Zucc.) trotter): Nutrient cycling in Agroecosystems. Nutr Cycl Agroecosyst 75(1):213–222
Hussain I, Hanjra MA (2004) Irrigation and poverty alleviation: review of the empirical evidence. Irrig Drain 53(1):1–15
Katerji N, Mastrorilli M, Cherni HE (2010) Effects of corn deficit irrigation and soil properties on water use efficiency. A 25-year analysis of a Mediterranean environment using the STICS model. Eur J Agron 32(2):177–185
Kirda C (2002) Deficit irrigation scheduling based on plant growth stages showing water stress tolerance. Irrig Sci p. 3–10
Kloss S, Pushpalatha R, Kamoyo KJ, Schütze N (2012) Evaluation of crop models for simulating and optimizing deficit irrigation systems in arid and semi-arid countries under climate variability. Water Resour Manag 26(4):997–1014
Mengistu DK (2009) The influence of soil water deficit imposed during various developmental phases on physiological processes of tef (Eragrostis tef). Agric Ecosyst Environ 132(3):283–289
Raes D (2009) ETo Calculator: a software program to calculate evapotranspiration from a reference surface. FAO Land Water Division: Digital Media Service, no. 36
Roseberg RJ, Norberg S, Smith J, Charlton B, Rykbost K, and Shock C (2006) Yield and quality of teff forage as a function of varying rates of applied irrigation and nitrogen: Research in the Klamath Basin 2005 Annual Report. OSU-AES Special Report, v. 1069, p. 119–136
Spaenij-Dekking L, Kooy-Winkelaar Y, Koning F (2005) The Ethiopian cereal tef in celiac disease. N Engl J Med 353(16):1748–1749
Stewart J, Misra R, Pruitt W, Hagan R (1975) Irrigating corn and grain sorghum with a deficient water supply. Trans ASAE 18(2):270–280
Zhang J, and Yang J (2004) Improving harvest index is an effective way to increase crop water use efficiency. p. 21–25
Acknowledgments
The authors express their sincere appreciation to the Netherlands Organization for International Cooperation in Higher Education (NUFFIC) for supporting the research financially. Moreover they would like to extend their gratitude to International Water Management Institute (IWMI) and Melkassa Research Centre for their good office during field research and experimental work. In addition the authors are also highly grateful for International Funding Support (IFS) grant agreement W/5097-1 for providing fund for the field experimental research.
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Yihun, Y.M., Haile, A.M., Schultz, B. et al. Crop Water Productivity of Irrigated Teff in a Water Stressed Region. Water Resour Manage 27, 3115–3125 (2013). https://doi.org/10.1007/s11269-013-0336-x
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DOI: https://doi.org/10.1007/s11269-013-0336-x