Your search found 2 records
1 Agyare, W. A.; Kyei-Baffour, N.; Ayariga, R.; Gyasi, K. O.; Barry, Boubacar; Ofori, E.. 2009. Irrigation options in the upper east region of Ghana. In Humphreys, E.; Bayot, R. S. (Eds.). Increasing the productivity and sustainability of rainfed cropping systems of poor smallholder farmers: proceedings of the CGIAR Challenge Program on Water and Food, International Workshop on Rainfed Cropping Systems, Tamale, Ghana, 22-25 September 2008. Colombo, Sri Lanka: CGIAR Challenge Program on Water and Food. pp.259-268.
(Location: IWMI HQ Call no: 631 G000 HUM Record No: H042445)
http://www.dfid.gov.uk/r4d/PDF/Outputs/WaterfoodCP/CPWF_Proceedings_Rainfed_Workshop%5B1%5D.pdf
https://vlibrary.iwmi.org/pdf/H042445.pdf
https://vlibrary.iwmi.org/pdf/H042445.pdf
(0.62 MB) (8.92MB)
Irrigation is used for year-round cropping to sustain economic livelihoods in the Upper East region of Ghana, which experiences a long dry season and erratic rainfall during the rainy season. The sources of irrigation water are a few medium-size reservoirs (e.g. Tono and Vea) and a large number of small reservoirs scattered across the region. Other approaches include the application of shallow groundwater for vegetable cultivation. In recent times, pumping from rivers has increasingly been used to irrigate areas close to rivers to cultivate high value crops. Dry season irrigation cropping helps to increase household food security and also provides off-season employment for the many youths who are idle during this time of the year. This paper examines the different irrigation approaches in relation to the economic benefits to farmers, amidst growing concern for water availability for alternative uses. Net financial returns to land were similar for irrigation from small reservoirs and medium?sized reservoirs for vegetable production. Most of these smaller systems face problems, which include partial or complete drying-up of the reservoir in the dry season, high input costs (e.g. pumps and accessories), lack of access to credit facilities, and rapid deterioration and low profitability of medium scale schemes. The choice of irrigation water source such as dams (medium or small), or river pumping must be based on location specific criteria that maximise profitability, efficiency and sustainable use of the scheme.
2 Masoud, J.; Agyare, W. A.; Forkuor, Gerald; Namara, Regassa; Ofori, E.. 2013. Modeling inland valley suitability for rice cultivation. ARPN Journal of Engineering and Applied Sciences, 8(1):9-19.
Valleys ; Rice ; Sensitivity analysis ; Models ; Rain ; Soil fertility ; Land tenure / Ghana / Brong Ahafo Region / Western Region
(Location: IWMI HQ Call no: e-copy only Record No: H045625)
http://www.arpnjournals.com/jeas/research_papers/rp_2013/jeas_0113_843.pdf
https://vlibrary.iwmi.org/pdf/H045625.pdf
https://vlibrary.iwmi.org/pdf/H045625.pdf
(2.39 MB) (2.38MB)
The demand for rice (Oryza sativa) in Ghana is increasing at a rate of 11.8% from 939, 920 t in 2010. Though there has been some increase in production it does not match the increase in consumption. This study seeks to determine the most suitable areas for inland valley rice cultivation using computer based models for selected sites (15km by 15km) in the Brong Ahafo Region (BAR) and Western Region (WR) of Ghana. A sensitivity analysis was carried out by excluding the least contributing parameters and varying their weights to determine highly suitable areas. Finally, 12 most sensitive input parameters were identified from the original 22. These were used to model for five suitability classes (highly suitable, suitable, moderately suitable, marginally suitable and not suitable). The model results based on parameters having equal weights showed that 0.5% and 11.8% (BAR); and 1.4% and 21.4% (WR) of the area were highly suitable and suitable respectively. Using unequal weights, 0.8% and 7.6% (BAR); and 0.9% and 13.6% (WR) of the area were highly suitable and suitable, respectively. The study successfully mapped out suitable areas for rice cultivation using spatial models based on limited data set, which can be adopted for use elsewhere.
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