ISSN: 2329-8863

Advances in Crop Science and Technology
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  • Research Article   
  • Adv Crop Sci Tech 2016, Vol 4(6): 244
  • DOI: 10.4172/2329-8863.1000244

Effect of Nitrogen Rates and Irrigation Regimes on Water Use Efficiency of Selected Potato Varieties in Jimma Zone, West Ethiopia

Egata Shunka Tolessa1*, Derbew Belew2, Adugna Debela2 and Beshir Kedi2
1Ethiopian Institute of Agricultural Research, Holetta Research Center, Horticulture Research Division, Ethiopia
2Jimma University College of Agriculture and Veterinary Medicine, Ethiopia
*Corresponding Author : Egata Shunka Tolessa, Ethiopian Institute of Agricultural Research, Holetta Research Center, Horticulture Research Division, PO Box 3002, Addis Abba, Ethiopia, Tel: +251931796885, Email: egata.shunka@yahoo.com

Received Date: Oct 28, 2016 / Accepted Date: Nov 11, 2016 / Published Date: Nov 15, 2016

Abstract

Ethiopia has possibly the greatest potential for potato production. But its contribution to food security is less due to poor agronomic techniques and other factors which require improving the ways of resources use. This experiment was conducted in Jimma University College of Agriculture and Veterinary Medicine greenhouse to study the effect of nitrogen rates and irrigation regimes on water and nitrogen use efficiency of selected potato varieties (Jalenie, Guassa and Degemegn), using three nitrogen rates (130, 110, 90 kg/ha), and three irrigation regimes [full irrigation (100%), 80% and 60% of full irrigation] on clay textured fine top soil filled to poly ethylene pot of 15 liter and 30 cm upper diameter. The experiment was 3 × 3 × 3 factorial with three replications laid down in a Randomized Complete Block Design. Interaction of variety and irrigation significantly affected water use efficiency (WUE). Jalenie variety recorded the highest WUE at 80% irrigation, but was on par with Guassa varieties at 100% irrigation. The lowest WUE was obtained from Degemegn variety at 100% irrigation even though there was no significant difference among the three irrigations. From the results, it can be concluded that irrigation regimes and variety were significantly affected water use efficiency of the potato varieties while the nitrogen rates and interaction between or among factors holding nitrogen combination were not influenced the water use efficiency of the potato varieties significantly. As this is output of greenhouse condition, open field experiment is suggested to be carried out to come up with conclusive results.

Keywords: Variety; WUE (water use efficiency); Irrigation regimes; Nitrogen rates

Citation: Tolessa ES, Belew D, Debela A, Kedi B (2016) Effect of Nitrogen Rates and Irrigation Regimes on Water Use Efficiency of Selected Potato Varieties in Jimma Zone, West Ethiopia. Adv Crop Sci Tech 4:244. Doi: 10.4172/2329-8863.1000244

Copyright: © 2016 Tolessa ES, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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