Your search found 114 records
1 Asare, I.; Kranjac-Berisavljevic, G.; Cofie, Olufunke. 2003. Faecal sludge application for agriculture in Tamale, Ghana. Urban Agriculture Magazine, 10: 32-33.
(Location: IWMI-HQ Call no: P 6499 Record No: H032876)
http://www.ruaf.org/sites/default/files/Faecal%20Sludge%20Application.pdf
https://vlibrary.iwmi.org/pdf/H032876.pdf
https://vlibrary.iwmi.org/pdf/H032876.pdf
(189.18 KB)
2 Penning de Vries, Frits W. T.; Acquay, H.; Molden, David; Scherr, S. J.; Valentin, Christian; Cofie, Olufunke. 2003. Integrated land and water management for food and environmental security. Colombo, Sri Lanka: International Water Management Institute (IWMI), Comprehensive Assessment Secretariat. viii, 62p. (Comprehensive Assessment of Water Management in Agriculture Research Report 001) [doi: https://doi.org/10.3910/2009.392]
Water resource management ; Food security ; Environmental effects ; Soil degradation ; Water pollution ; Watersheds ; Urbanization ; Public policy ; Water quality ; Ecosystems ; Land resources ; Water scarcity ; Developing countries ; Poverty ; Households ; Food supply ; Economic aspects ; Social aspects ; Groundwater depletion ; Salinity ; Wetlands ; Investment ; Land use ; Water use ; Training needs assessment ; Research priorities
(Location: IWMI-HQ Call no: IWMI 333.91 G000 PEN Record No: H034918)
(1.02 MB)
3 Olaleye, A. O.; Osiname, O. A.; Cofie, Olufunke. 2004. Soil and water management for rice production in Nigeria. Paper presented at the West Africa International Conference on Hunger Without Frontiers, West African Society for Agricultural Engineering (WASAE 2004), Kumasi, Ghana, 20-24 September 2004. 11p.
(Location: IWMI-HQ Call no: IWMI 633.18 G214 OLA Record No: H035916)
Rice (Oryza sativa L.) is a unique crop grown in virtually all agro-ecological zones in Nigeria. Much emphasis has been placed on the chemical properties of soils on which rice is grown while there is sparse information on the effect of soil physical properties on grain yield of rice. Field experiments were conducted on upland and wetland soils as they relate to water management for rice production in Nigeria. Results showed that soils with higher clay contents in the top and sub-soils gave higher grain yields of rice compared with soils that are of sandy texture. In terms of agro-climatic characteristics Nigeria could be classified as being highly suitable (S1) for rice cultivation. However, considering the top and subsoil clay contents, these soils are only marginally suitable (S3) for rice production. Soil texture, soil surface relief, groundwater level, as well as number of days of submergence significantly affected the growth and grain yield of rice on lowland soils while clay contents in the subsoil is a significant factor in water retention for upland rice cultivars. These factors must be given proper attention in managing water for rice production in Nigeria.
4 Cofie, Olufunke; Pleysier, J. 2004. Ion exchange involving calcium-potasium (Ca-K) and calcium-magnesium (Ca-Mg) in soil and organic matter fractions. Communications in Soil Science and Plant Analysis, 35(17-18):2417-2431.
Ion exchange ; Soil properties ; Soil organic matter ; Clay ; Fractionation ; Calcium ; Magnesium ; Potassium / Nigeria
(Location: IWMI-HQ Call no: IWMI 631.4 G000 COF Record No: H035917)
The chemical characteristics of two soil types, an Alfisol and an Ultisol, were studied in the humid tropical zone of southern Nigeria. The objective was to investigate the contribution of soil organic matter (SOM) to nutrient retention characteristics and identify those SOM pools that contribute most to the ion exchange properties of the soils. Ion exchange studies involving K-Ca and Mg-Ca systems in whole soil, organic fraction (53-250 mm) and clay fraction (<2 mm ) showed a preference for Ca relative to K in the soil and organic fraction. For the clay fraction in Alfisol, the isotherm in K-Ca system suggested a preference for K at low K saturation, but from about 50% K saturation, the isotherm inferred a preference for Ca. However, the overall selectivity at constant temperature and pressure as expressed by Gibb’s free energy change suggested a stronger binding of K than Ca by the fraction.
5 Danso, George; Cofie, Olufunke; Annang, L.; Obuobie, Emmanuel; Keraita, Bernard. 2004. Gender and urban agriculture: the case of Accra, Ghana. Paper presented at the RUAF/IWMI/Urban Harvest Woman Feeding Cities Workshop on Gender Mainstreaming in Urban Food Production and Food Security, Accra, Ghana, 20-23 September 2004. 10p.
Gender ; Agricultural society ; Women ; Households ; Land ownership ; Credit ; Urbanization ; Farmers ; Social aspects / Ghana / Accra
(Location: IWMI-HQ Call no: IWMI 630.88042 G200 DAN Record No: H035918)
6 Kone, D.; Gallizzi, K.; Drescher, Silke; Cofie, Olufunke; Zurbrugg, C.; Forster, D.; Montangero, A.; Awuah, E.; Strauss, M. 2004. Efficiency of helminth eggs inactivation in dewartered faecal sludge by co-composting. In Godfrey, S. (Ed.) Proceedings of the 30th WEDC International Conference on People-Centered Approaches to Water and Environmental Sanitation, Vientiane, Lao PDR, 25-28 October 2004. Leicestershire, UK: Water, Engineering and Development Centre (WEDC). pp.21-25.
(Location: IWMI-HQ Call no: IWMI 628.3 G200 KON Record No: H035919)
7 Cofie, Olufunke; Barry, Boubacar; Bossio, Deborah. 2004. Human resources as a driver of bright spots: the case of rainwater harvesting in West Africa. Paper presented at the NEPAD/IGAD Regional Conference “Agricultural successes in the Greater Horn of Africa,” Nairobi, Kenya, 22-25 November 2004. Conference paper no.19. 23p.
Water harvesting ; Catchment areas ; Supplementary irrigation ; Human resources ; Leadership ; Labor / West Africa
(Location: IWMI-HQ Call no: IWMI 631.7.3 G190 COF Record No: H035920)
8 Mattah, Memuna M.; Cofie, Olufunke. 2004. Effect of farming practices on the performance of rice (oryza sativa) in selected farms of Ashaiman Irrigation Project. Paper presented at the 2nd WASAE International Conference on Agricultural Engineering, KNUST, 20-24 Sept 2004. 10p.
Irrigation programs ; Farming systems ; Rice ; Irrigated farming ; Fertilizers ; Weed control ; Production costs / Ghana / Ashaiman Irrigation Project
(Location: IWMI-HQ Call no: IWMI 631.7.2 G200 MAT Record No: H035924)
9 Cofie, Olufunke; Kranjac-Berisavljevic, Gordana; Drechsel, Pay. 2005. The use of human waste for peri-urban agriculture in Northern Ghana. Renewable Agriculture and Food Systems, 20(2):73-80.
(Location: IWMI-HQ Call no: IWMI 631.86 G200 COF Record No: H037652)
10 Olaleye, Adesola; Cofie, Olufunke; Alabi, M. O.; Samuel, T. M. 2005. Impact of selected heavy metals on human and environmental health in Nigeria. Paper presented at the 8th International Conference on the Biogeochemistry of Trace Elements (ICOBTE), International Society of Trace Element Biogeochemistry, Adelaide, Australia, 1-7 April 2005. 2p.
Water pollution ; Soil degradation ; Public health ; Environmental degradation ; Effluents ; Coastal waters ; Water quality / Nigeria
(Location: IWMI-HQ Call no: IWMI 363.7 G214 OLA Record No: H037657)
11 Cofie, Olufunke. 2005. Keynote address at the Workshop on Urban and Peri-Urban Agriculture in Ghana: Implications for Agricultural Extension, GIDA Training School, Accra, Ghana, 4 October 2005. International Water Management Institute (IWMI) West Africa Office; international Network of Resource Centres on Urban Agriculture and Food Security (RUAF) 6p.
(Location: IWMI-HQ Call no: IWMI 630.715 G200 COF Record No: H038106)
(0.034 MB)
12 Cofie, Olufunke; Agbottah, S.; Strauss, M.; Esseku, H.; Montangero, A.; Awuah, E.; Kone, D. 2006. Solid-liquid separation of faecal sludge using drying beds in Ghana: implications for nutrient recycling in urban agriculture. Water Research, 40(1):75-82.
Solid wastes ; Sewage sludge ; Organic fertilizers ; Recycling ; Public health ; Sanitation ; Urban agriculture ; Developing countries / Ghana
(Location: IWMI-HQ Call no: IWMI 631.86 G200 COF Record No: H038182)
(0.32 MB)
13 Abraham, Ernest; Drechsel, Pay; Cofie, Olufunke. 2006. The challenge of urban flood control: the case of Accra’s Korle Lagoon. Paper presented at the 5th Worldwide Workshop for Young Environmental Scientists - Urban waters: resource or risk?, Domaine de Cherioux, Vitry sur Seine, France, 9-12 May 2006. 8p.
Lagoons ; Flood control ; Drainage ; Water management ; Sanitation ; Wastewater / Africa South of Sahara / Ghana / Accra / Korle Lagoon
(Location: IWMI-HQ Call no: IWMI 627.4 G200 ABR Record No: H038739)
14 Drechsel, Pay; Graefe, S.; Sonou, M.; Cofie, Olufunke. 2006. Informal irrigation in urban West Africa: an overview. Colombo, Sri Lanka: International Water Management Institute (IWMI). 34p. (IWMI Research Report 102) [doi: https://doi.org/10.3910/2009.102]
Irrigated farming ; Urban agriculture ; Suburban agriculture ; Farm size ; Farming systems ; Health hazards ; Water pollution ; Farm income / West Africa
(Location: IWMI-HQ Call no: IWMI 631.7 G190 DRE Record No: H039249)
(430KB)
This report tries to provide a state-of-the-art overview on irrigated urban agriculture in the W est African subregion based on a com prehensive literature review supported by the results of three IWMI FAO projects.
15 Keraita, Bernard; Drechsel, Pay; Amoah, Philip; Cofie, Olufunke. 2006. Assessment of health risks and benefits associated with UA [Urban Agriculture]: impact assessment, risk mitigation, and healthy public policy. In Boischio, A. Clegg, A.; Mwagore, D. (Eds.). Health Risks and Benefits of Urban and Peri-urban Aagriculture and Livestock (UA) in Sub-Saharan Africa Workshop, June 2003: resource papers and workshop proceedings. Resource paper 3. Ottawa, Canada: International Development Research Centre (IDRC) pp.55-73. (Urban Poverty and Environment Series Report 1)
Public health ; Risks ; Urban agriculture ; Wastewater ; Water quality ; Decision making / Africa South of Sahara
(Location: IWMI-HQ Call no: IWMI 631.7.5 G110 KER Record No: H039377)
http://www.google.lk/url?sa=t&rct=j&q=Health+risks+and+benefits+of+urban+and+peri-urban+agriculture+and+livestock+(UA)+in+Sub-Saharan+Africa%3A+Resource+papers+and+workshop+proceedings&source=web&cd=1&ved=0CCEQFjAA&url=http%3A%2F%2Fweb.idrc.ca%2Fuploads%2Fuser-S%2F11661323001Final_Benefits_of_Urban_Ag_in_SSA.doc&ei=zUUmT6X6HcPjrAeA09GVCA&usg=AFQjCNFCyjHgbztbbMxik82ttVOfHOoOgw
https://vlibrary.iwmi.org/pdf/H039377.pdf
https://vlibrary.iwmi.org/pdf/H039377.pdf
(0.22 MB)
16 Cofie, Olufunke; Adam-Bradford, A.; Drechsel, Pay. 2006. Recycling of urban organic waste for urban agriculture. In van Veenhuizen, R. (Ed.). Cities farming for the future: Urban agriculture for green and productive Cities. Leusden, Netherlands: Network of Resource Centres on Urban Agriculture and Food Security (RUAF Foundation); Ottawa, Canada: International Development Research Centre (IDRC); Silang, Philippines: International Institute of Rural Reconstruction (IIRR). pp.210-229.
Urban wastes ; Waste management ; Recycling ; Organic wastes ; Composting ; Public health ; Risks / South Africa
(Location: IWMI HQ Call no: IWMI 630 G178 COF Record No: H039391)
(0.44 MB) (712KB)
17 McCartney, Matthew; Boelee, Eline; Cofie, Olufunke; Mutero, Clifford. 2007. Minimizing the negative environmental and health impacts of agricultural water resources development in Sub-Saharan Africa. Colombo, Sri Lanka: International Water Management Institute (IWMI) 35p. (IWMI Working Paper 117) [doi: https://doi.org/10.3910/2009.297]
Water resources development ; Irrigation management ; Investment ; Environmental effects ; Public health ; Risk management / Africa South of Sahara
(Location: IWMI-HQ Call no: IWMI 631.7.5 G110 MCC Record No: H039812)
(242KB)
18 Danso, George; Drechsel, Pay; Cofie, Olufunke. 2005. Developing policy support on closing rural-urban nutrient recycling for urban and peri-urban agriculture in West Africa: application of multi-stakeholder processes and approaches. Paper presented at the Conference on Agricultures et Developpement Urbain en Afrique de l’Ouest et Centre, CIRAD, Yaounde, Cameroon, 30 October - 3 November 2005. 16p.
Waste management ; Composting ; Urban agriculture ; Urban wastes ; Nutrients ; Recycling / West Africa / Ghana / Nigeria / Benin / Togo / Accra / Kumasi / Ouagadougou
(Location: IWMI HQ Call no: IWMI 631.875 G190 DAN Record No: H040256)
(104.2KB)
19 McCartney, Matthew; Boelee, Eline; Cofie, Olufunke; Mutero, Clifford. 2008. Planning and management of irrigation in Sub-Saharan Africa: reducing the environmental and health costs. In Awulachew, Seleshi Bekele; Loulseged, Makonnen; Yilma, Aster Denekew (Comps.). Impact of irrigation on poverty and environment in Ethiopia: draft proceedings of the symposium and exhibition, Addis Ababa, Ethiopia, 27-29 November 2007. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.389-399.
Irrigation management ; Irrigation programs ; Planning ; Public health ; Health hazards ; Environmental effects / Africa South of Sahara
(Location: IWMI HQ Call no: IWMI 631.7.5 G110 MCC Record No: H040644)
(0.18 MB) (0.13 MB)
Development of irrigation can result in negative environmental and human health impacts. Irrigation undertaken without full consideration of these impacts can have serious adverse repercussions, not only undermining the investment but also worsening poverty and contributing considerably to peoples’ suffering. The impacts are strongly inter-linked because it is changes in the environment that cause changes in health. Furthermore, mitigation measures that reduce environmental damage often improve health outcomes. In the past, research into impacts, and the development of impact assessment methodologies, has focused primarily on large scale, capital intensive, schemes. However, small scale and less formal water management interventions, which are increasingly prevalent in sub-Saharan Africa, can also have significant environmental and health impacts. This paper summarizes the findings of a study of environmental and health issues associated with all scales of irrigation in sub-Saharan Africa. It is not a compendium of data, but rather provides an overview and framework for understanding policy and programming issues. It is recommended that a pragmatic approach to address current environmental and health planning includes three levels of implementation: i) strategic planning at the national and regional level; ii) full environmental and health assessment for government and donor funded projects; and iii) development of simplified tools for impact assessment relevant to community led, NGO and small private projects.
20 Kone, D.; Cofie, Olufunke; Zurbrugg, C.; Gallizzi, K.; Moser, D.; Drescher, S.; Strauss, M. 2007. Helminth eggs inactivation efficiency by faecal sludge dewatering and co-composting in tropical climates. Water Research, 41: 4397 – 4402.
Ascaris ; Composting ; Helminths ; Trichuris ; Diseases ; Public health ; Health hazards ; Risks / Ghana / Kumasi
(Location: IWMI HQ Record No: H040972)
(0.22 MB)
This study investigates helminth eggs removal and inactivation efficiency in a treatment process combining faecal sludge (FS) dewatering and subsequent co-composting with organic solid waste as a function of windrow turning frequency. Fresh public toilet sludge and septage mixed at a 1:2 ratio were dewatered on a drying bed. Biosolids with initial loads of 25–83 helminth eggs/g total solids (TS) were mixed with solid waste as bulking material for co-composting at a 1:2 volume ratio. Two replicate sets of compost heaps were mounted in parallel and turned at different frequencies during the active composting period: (i) once every 3 days and (ii) once every 10 days. Turning frequency had no effect on helminth eggs removal efficiency. In both setups, helminth eggs were reduced to o1 viable egg/g TS, thereby complying with the WHO guidelines 2006 for the safe reuse of FS.
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