| Population density, soil nutrient depletion, and economic growth in sub-Saharan Africa P Drechsel, L Gyiele, D Kunze, O Cofie Ecological economics 38 (2), 251-258, 2001 | 400 | 2001 |
| Irrigated urban vegetable production in Ghana: characteristics, benefits and risks. E Obuobie, B Keraita, G Danso, P Amoah, OO Cofie, L Raschid-Sally, ... | 315 | 2006 |
| Informal irrigation in urban West Africa: An overview P Drechsel, S Graefe, M Sonou, OO Cofie IWMI, 2006 | 284 | 2006 |
| Helminth eggs inactivation efficiency by faecal sludge dewatering and co-composting in tropical climates D Koné, O Cofie, C Zurbrügg, K Gallizzi, D Moser, S Drescher, M Strauss Water research 41 (19), 4397-4402, 2007 | 207 | 2007 |
| Solid–liquid separation of faecal sludge using drying beds in Ghana: Implications for nutrient recycling in urban agriculture OO Cofie, S Agbottah, M Strauss, H Esseku, A Montangero, E Awuah, ... Water research 40 (1), 75-82, 2006 | 202 | 2006 |
| The use of human waste for peri-urban agriculture in Northern Ghana OO Cofie, G Kranjac-Berisavljevic, P Drechsel Renewable agriculture and food systems 20 (2), 73-80, 2005 | 179 | 2005 |
| Co-composting of faecal sludge and organic solid waste for agriculture: Process dynamics O Cofie, D Kone, S Rothenberger, D Moser, C Zubruegg Water research 43 (18), 4665-4675, 2009 | 178 | 2009 |
| Dynamics of land-use and land-cover change in Freetown, Sierra Leone and its effects on urban and peri-urban agriculture–a remote sensing approach G Forkuor, O Cofie International Journal of Remote Sensing 32 (4), 1017-1037, 2011 | 139 | 2011 |
| Contribution of urban and peri-urban agriculture to food security in sub-Saharan Africa OO Cofie, R Van Veenhuizen, P Drechsel Africa Day of the 3rd WWF in Kyoto 3, 2003 | 135 | 2003 |
| Effect of N-enriched co-compost on transpiration efficiency and water-use efficiency of maize (Zea mays L.) under controlled irrigation N Adamtey, O Cofie, KG Ofosu-Budu, J Ofosu-Anim, KB Laryea, D Forster Agricultural Water Management 97 (7), 995-1005, 2010 | 98 | 2010 |
| Recycling of urban organic waste for urban agriculture O Cofie, A Bradford, P Drechsel Cities Farming for the Future 210, 2006 | 94 | 2006 |
| Climate smart agriculture in the African context TO Williams, J Kinyangi, M Nyasimi, DA Amwata, CI Speranza, ... | 81 | 2015 |
| Integrated land and water management for food and environmental security FWTP de Vries IWMI, 2003 | 81 | 2003 |
| Production and storage of N-enriched co-compost N Adamtey, O Cofie, GK Ofosu-Budu, SKA Danso, D Forster Waste management 29 (9), 2429-2436, 2009 | 79 | 2009 |
| Increasing use of poultry manure in and around Kumasi, Ghana: Is farmers’ race consumers’ fate P Drechsel, RC Abaidoo, P Amoah, OO Cofie Urban Agricultural Magazine 2, 25-27, 2000 | 74 | 2000 |
| Co-composting of solid waste and fecal sludge for nutrient and organic matter recovery O Cofie, J Nikiema, R Impraim, N Adamtey, J Paul, D Koné IWMI, 2016 | 63 | 2016 |
| Efficiency indicators for waste-based business models: fostering private-sector participation in wastewater and faecal-sludge management A Murray, O Cofie, P Drechsel Water International 36 (4), 505-521, 2011 | 61 | 2011 |
| Farmers perception and economic benefits of excreta use in southern Ghana O Cofie, A Adeoti, F Nkansah-Boadu, E Awuah Resources, Conservation and Recycling 55 (2), 161-166, 2010 | 60 | 2010 |
| Technological options for safe resource recovery from fecal sludge J Nikiema, OO Cofie Resource Recovery and Reuse Series, 2014 | 56 | 2014 |
| Processing of fecal sludge to fertilizer pellets using a low-cost technology in Ghana J Nikiema, O Cofie, R Impraim, N Adamtey Environment and Pollution 2 (4), 70, 2013 | 52 | 2013 |