Comparison between traditional and scientific irrigation scheduling practices for furrow irrigated potatoes (Solanum tuberosum L.) in Ethiopia

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dc.contributor.author Geremew, Eticha Birdo
dc.contributor.author Steyn, J.M. (Joachim Marthinus), 1963-
dc.contributor.author Annandale, J.G. (John George), 1959-
dc.date.accessioned 2009-03-16T12:24:27Z
dc.date.available 2009-03-16T12:24:27Z
dc.date.issued 2008
dc.description.abstract Traditional irrigation schemes constitute about 40% of the total irrigated land in Ethiopia. Despite this, the sector has been overlooked and not supported by improved water management technologies. A survey conducted on one of the schemes, Godino, indicated that farmers apply the same amount of water regardless of crop type and growth stage. In view of this, an experiment was established at the Debre-Zeit Research Centre in Ethiopia with the objective of comparing the performance of two traditional irrigation management practices to two scientific scheduling methods namely an Irrigation Calendar generated with the Soil Water Balance (SWB) model and a neutron probe (NP) based scheduling method. The four irrigation regimes were applied to furrow irrigated potatoes. Plant sampling for dry mass determination was undertaken on a weekly basis. Results of leaf, canopy and total dry matter, as well as fresh tuber yields, indicated that the NP and SWB schedules were superior to the traditional scheduling methods. Leaf dry matter was the most responsive parameter to irrigation treatments. The overall results revealed that traditional irrigation practices did not meet the full potato crop water requirements to ensure acceptable yield, which emphasized the need for introducing better and more efficient practices. Since the best performing treatment, NP, is capital and skills intensive, site specific SWB calendars, which performed similarly to NP and are simpler to use, are to be recommended for farmers at the Godino scheme. en_US
dc.identifier.citation Geremew, EB, Steyn JM & Annandale, JG 2008, 'Comparison between traditional and scientific irrigation scheduling practices for furrow irrigated potatoes (Solanum tuberosum L.) in Ethiopia', South African Journal of Plant and Soil, vol. 25, no. 1, pp. 42-48. [www.plantandsoil.co.za] en_US
dc.identifier.issn 0257-1862
dc.identifier.uri http://hdl.handle.net/2263/9267
dc.language.iso en en_US
dc.publisher South African Society of Crop Production/ Soil Science Society of South Africa/ Southern African Weed Science Society/ Southern African Society for Horticultural Sciences en_US
dc.rights South African Society of Crop Production/ Soil Science Society of South Africa/ Southern African Weed Science Society/ Southern African Society for Horticultural Sciences en_US
dc.subject Furrow irrigation en_US
dc.subject Irrigation scheduling en_US
dc.subject Neutron probe en_US
dc.subject SWB en_US
dc.subject Irrigation calendars en_US
dc.subject Water productivity en_US
dc.subject Potato growth en_US
dc.subject.lcsh Irrigation efficiency -- Ethiopia
dc.subject.lcsh Potatoes -- Ethiopia
dc.title Comparison between traditional and scientific irrigation scheduling practices for furrow irrigated potatoes (Solanum tuberosum L.) in Ethiopia en_US
dc.type Article en_US


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