Your search found 13 records
1 Agodzo, S. K.; Gowing, S. W.; Adey, M. A. 1991. Use of porous clay pot as alternative trickle irrigation device. In Woolridge, R. (Ed.) Techniques for environmentally sound water resources development: Papers presented to the African Regional Symposium held in Alexandria, Egypt, 17-19 February 1991. London, UK: Pentech Press. pp.11-20.
(Location: IWMI-HQ Call no: 333.91 G000 WOO Record No: H08241)
2 Agodzo, S. K.. 1991. Irrigation research and extension needs in developing countries. IIMI Bulletin du Reseau Irrigation Afrique de l'quest, 1:30-34.
(Location: IWMI-HQ Call no: P 1965 Record No: H08528)
3 Agodzo, S. K.; Kyei-Baffour, N. 1992. Technology changes in irrigation and food security in Africa. In Feyen, J.; Mwendera, E.; Badji, M. (Eds.). Advances in planning, design and management of irrigation systems as related to sustainable land use: proceedings of an International Conference organized by the Center for Irrigation Engineering of the Katholieke Universiteit Leuven in cooperation with the European Committee for Water Resources Management, Leuven, Belgium, 14-17 September 1992. Vol.1. Leuven, Belgium: Center for Irrigation Engineering. pp.125-135.
Food security ; Economic analysis ; Irrigation ; Technology ; Surface irrigation ; Sprinkler irrigation / Africa
(Location: IWMI-HQ Call no: 631.7.1 G000 FEY Record No: H014343)
Recognizing the fact that irrigation is a crucial input to food production for many developing nations, attempts are made in this paper to discuss some recent developments in irrigation, bearing in mind the technology-related management issues in the poor technology-importing African nations. Given that the food situation in Africa gives cause for concern, and in view of the present level of sophistication of standard irrigation systems, it is suggested that there is the need to bring the benefits of irrigation quickly to the poor nations by simplifying and economizing irrigation.
4 Agodzo, S. K.; Amenuvor, B. 1994. An irrigation extension model. FAO Technical Consultation, Irrigation Extension in West Africa, 5-9 December 1994. 8p.
(Location: IWMI-HQ Call no: P 3825 Record No: H016600)
5 Agodzo, S. K.; Gowing, J. W.; Adey, M. A. 1995. Modelling a finite cylindrical trickle source with cylindrical root uptake. In Lamm, F. R. (Ed.), Microirrigation for a changing world: Conserving resources/preserving the environment: Proceedings of the Fifth International Microirrigation Congress, Hyatt Regency Orlando, Orlando, Florida, April 2-6, 1995. St. Joseph, MI, USA: ASAE. pp.621-627.
Drip irrigation ; Soil water ; Mathematical models ; Pitcher irrigation ; Soil-water-plant relationships
(Location: IWMI-HQ Call no: 631.7 G000 LAM Record No: H018915)
6 Agodzo, S. K.; Gowing, J. W.; Adey, M. A. 1996. Evapotranspiration and crop coefficient measurements using porus clay pot. In Camp, C. R.; Sadler, E. J.; Yoder, R. E. (Eds.), Evapotranspiration and irrigation scheduling: Proceedings of the International Conference, November 3-6, 1996, San Antonio Convention Center, San Antonio, Texas. St. Joseph, MI, USA: ASAE. pp.275-280.
(Location: IWMI-HQ Call no: 631.7.1 G000 CAM Record No: H020589)
7 Agodzo, S. K.; Nishio, T.; Yamamoto, T. 1997. Trickle irrigation of okra based on small pan evaporation schedule under glasshouse condition. Rural and Environmental Engineering, 33:19-36.
Drip irrigation ; Small scale systems ; Evaporation ; Evapotranspiration ; Horticulture ; Irrigation scheduling ; Water use efficiency ; Irrigation requirements ; Soil moisture ; Measurement ; Soil temperature / Japan
(Location: IWMI-HQ Call no: P 4545 Record No: H021300)
8 Agodzo, S. K.; Blay, A. K. 2002. A case study of the Volta River Estates Limited (VREL), Ghana. In Sally, H.; Abernethy, C. L. (Eds.), Private irrigation in Sub-Saharan Africa: Regional Seminar on Private Sector Participation and Irrigation Expansion in Sub-Saharan Africa, Accra, Ghana, 22-26 October 2001. Colombo, Sri Lanka: IWMI; FAO; ACP-EU Technical Centre for Agricultural and Rural Cooperation. pp.157-164.
Irrigated farming ; Sprinkler irrigation ; Bananas ; Productivity ; Sustainability ; Marketing / Ghana / Volta River
(Location: IWMI-HQ Call no: IWMI 631.7.3 G110 SAL Record No: H030879)
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9 Duran, A.; Moscoso, O.; Romero, A. M.; Huibers, F. P.; Agodzo, S. K.; Chenini, F.; van Lier, J. B. 2003. Use of wastewater in irrigated agriculture: Country studies from Bolivia, Ghana and Tunisia – Volume 1, Bolivia. Wageningen, Netherlands: Wageningen University. 64p.
Wastewater ; Water quality ; Irrigated farming ; Urbanization ; Population ; Water supply ; Sanitation ; Effluents ; Legislation ; Environmental effects ; Economic aspects / Bolivia
(Location: IWMI-HQ Call no: 631.7.5 G512 DUR Record No: H033181)
10 Agodzo, S. K.; Huibers, F. P.; Chenini, F.; van Lier, J. B.; Duran, A. 2003. Use of wastewater in irrigated agriculture: Country studies from Bolivia, Ghana and Tunisia – Volume 2, Ghana. Wageningen, Netherlands: Wageningen University. 40p.
Wastewater ; Water use ; Institutions ; Legislation ; Irrigated farming ; Water supply ; Water demand ; Urbanization ; Water quality ; Monitoring / Ghana / Kumasi / Accra
(Location: IWMI-HQ Call no: 631.7.5 G200 AGO Record No: H033182)
11 Chenini, F.; Huibers, F. P.; Agodzo, S. K.; van Lier, J. B.; Duran, A. 2003. Use of wastewater in irrigated agriculture: Country studies from Bolivia, Ghana and Tunisia – Volume 3, Tunisia. Wageningen, Netherlands: Wageningen University. 52p.
Wastewater ; Water reuse ; Irrigation water ; Water supply ; Sanitation ; Urbanization ; Water quality ; Salinity ; Legislation / Tunisia
(Location: IWMI-HQ Call no: 631.7.5 G240 CHE Record No: H033183)
12 Obuobie, E.; Keraita, B.; Hope, L.; Agodzo, S. K.. 2014. Health risk perceptions of stakeholders in irrigated urban vegetable farming. In Drechsel, Pay; Keraita, B. (Eds.) Irrigated urban vegetable production in Ghana: characteristics, benefits and risk mitigation. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.116-135.
Urban agriculture ; Irrigated farming ; Irrigation water ; Wastewater irrigation ; Vegetable growing ; Health hazards ; Stakeholders ; Farmers ; Surveys / Ghana / Accra / Kumasi / Tamale
(Location: IWMI HQ Call no: IWMI Record No: H046607)
(295 KB)
This chapter presents a compilation of survey results on perceptions of urban vegetable farmers, traders and consumers, and of local authorities/officials on urban open-space vegetable farming in general and irrigation with polluted water sources in particular. Information presented is based on surveys conducted in 2002 to 2003 and 2005 to 2006 involving over 1,000 vegetable consumers, 150 vegetable sellers, 24 city officials and over 140 farmers in Accra, Kumasi and Tamale. Reviews from other related literature have also been included.
13 Bessah, E.; Raji, A. O.; Taiwo, O. J.; Agodzo, S. K.; Ololade, O. O. 2020. The impact of varying spatial resolution of climate models on future rainfall simulations in the Pra River Basin (Ghana). Journal of Water and Climate Change, 11(4):1263-1283. [doi: https://doi.org/10.2166/wcc.2019.258]
Rainfall patterns ; General circulation models ; Simulation ; Forecasting ; Performance evaluation ; Climate change ; Temperature ; Dry season ; Precipitation ; River basins / Africa / Ghana / Pra River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H050150)
(0.91 MB)
This work compares future projections of rainfall over the Pra River Basin (Ghana) using data from five climate models for the period 2020–2049, as referenced to the control period 1981–2010. Bias-correction methods were applied where necessary and models' performances were evaluated with Nash–Sutcliffe Efficiency, root-mean-square error and coefficient of determination. Standardised Anomaly Index (SAI) was used to determine variability. The onset and cessation dates and length of the rainy season were determined by modifying the Walter–Olaniran method. The ensemble means of the models projected a 1.77% decrease in rainfall. The SAI showed that there would be drier than normal years with the likelihood of drought occurrence in 2021, 2023, 2031 and 2036. The findings showed that high-resolution models (=25 km) were more capable of simulating rainfall at the basin scale than mid-resolution models (26–150 km) and projected a 20.13% increase. Therefore, the rainfall amount is expected to increase in the future. However, the projected increase in the length of the dry season by the ensemble of the models suggested that alternative sources of water would be necessary to supplement rainfed crop production for food security.
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