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Year-Round Irrigation Schedule for a Tomato–Maize Rotation System in Reservoir-Based Irrigation Schemes in Ghana

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dc.contributor.author Sekyi-Annan, E.
dc.contributor.author Tischbein, B.
dc.contributor.author Diekkruger, B.
dc.contributor.author Khamzina, A.
dc.date.accessioned 2022-06-23T13:01:50Z
dc.date.available 2022-06-23T13:01:50Z
dc.date.issued 2018
dc.identifier.citation Sekyi-Annan, E., Tischbein, B., Diekkrüger, B., & Khamzina, A. (2018). Year-round irrigation schedule for a tomato–maize rotation system in reservoir-based irrigation schemes in Ghana. Water, 10(5), 624. en_US
dc.identifier.uri https://doi.org/:10.3390/w10050624
dc.identifier.uri http://hdl.handle.net/123456789/2372
dc.description.abstract Improving irrigation management in semi-arid regions of Sub-Saharan Africa is crucial to respond to increasing variability in rainfall and overcome deficits in current irrigation schemes. In small-scale and medium-scale reservoir-based irrigation schemes in the Upper East region of Ghana, we explored options for improving the traditional, dry season irrigation practices and assessed the potential for supplemental irrigation in the rainy season. The AquaCrop model was used to (i) assess current water management in the typical tomato-maize rotational system; (ii) develop an improved irrigation schedule for dry season cultivation of tomato; and (iii) determine the requirement for supplemental irrigation of maize in the rainy season under different climate scenarios. The improved irrigation schedule for dry season tomato cultivation would result in a water saving of 130–1325 mm compared to traditional irrigation practices, accompanied by approximately a 4–14% increase in tomato yield. The supplemental irrigation of maize would require 107–126 mm of water in periods of low rainfall and frequent dry spells, and 88–105 mm in periods of high rainfall and rare dry spells. Therefore, year-round irrigated crop production may be feasible, using water saved during dry season tomato cultivation for supplemental irrigation of maize in the rainy season. en_US
dc.language.iso en en_US
dc.publisher MDPI en_US
dc.relation.ispartofseries Water;10,5
dc.subject Aquacrop model en_US
dc.subject Capillary rise en_US
dc.subject Climate change en_US
dc.subject Rainfall variability en_US
dc.subject Supplemental irrigation en_US
dc.title Year-Round Irrigation Schedule for a Tomato–Maize Rotation System in Reservoir-Based Irrigation Schemes in Ghana en_US
dc.type Article en_US


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