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Recycling Nutrients from Organic Wastes in Kenya’s Capital City

  • Mary Njenga
  • Dannie Romney
  • Nancy Karanja
  • Kuria Gathuru
  • Stephen Kimani
  • Sammy Carsan
  • Will Frost
Chapter

Abstract

The question how much of the potential soil nutrients contained in urban wastes are being used and what processes are involved led to this study in the early 2000s. The issue is of central importance to understanding the potential benefits of a properly managed urban agriculture sector, since soil fertility is a major problem in Sub-Saharan Africa and urban wastes represent a large potential source of nutrients (Savala et al. 2003). Mougeot (1993, p.114) highlighted the importance of solid waste management and offered insights into the use of organic wastes by farmers as compost for their crops. When the Consultative Group on International Agricultural Research (CGIAR) was starting up its new system-wide program – Urban Harvest – in Africa in late 2000, stakeholders called for better documentation of these processes. In response, we came together from a number of institutions in Kenya to identify and map out the basic market and material flows for composts and manure in Nairobi and identify opportunities for improving the functioning of the system.

Keywords

Informal Settlement Urban Agriculture Cattle Manure Livestock Manure Livestock Keeper 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Agbola, T 2001, ‘Turning municipal waste into compost: the case of Ibadan’, in Drechsel, P & Kunze, D (eds) Waste composting for urban and peri-urban agriculture: closing the rural-urban nutrient cycle in Sub-Saharan Africa, CABI Publishing, IWMI & FAO, New York, NY, pp. 69–83.CrossRefGoogle Scholar
  2. Anderson, JM & Ingram, JSI 1993, Tropical soil biology and fertility: a handbook of methods, CAB International, Wallingford.Google Scholar
  3. Bryceson, D 2000, Rural Africa at the crossroads: livelihood practices and policies, ODI, London.Google Scholar
  4. Cofie, O 2003, Co-composting of faecal sludge and solid waste for urban and peri-urban agriculture in Kumasi, Ghana, IWMI, SANDEC, KNUST & KMA, Kumasi.Google Scholar
  5. Cole, DC, Lee-Smith, D & Nasinyama, GW (eds) 2008, Healthy city harvests: Generating evidence to guide policy on urban agriculture, CIP/Urban Harvest and Makerere University Press, Lima, Peru.Google Scholar
  6. Drechsel, P & Kunze, D (eds) 2001, Waste composting for urban and peri-urban agriculture: closing the rural-urban nutrient cycle in Sub-Saharan Africa, CABI Publishing, IWMI & FAO, New York, NY.Google Scholar
  7. Etuah-Jackson, I, Klaassen, WP & Awuye, JA 2001, ‘Turning municipal waste into compost: the case of Accra, Ibadan’, in Drechsel, P & Kunze, D (eds) Waste composting for urban and peri-urban agriculture: closing the rural-urban nutrient cycle in Sub-Saharan Africa, CABI Publishing, IWMI & FAO, New York, NY, pp. 84–95.CrossRefGoogle Scholar
  8. Foeken, D 2006, “To subsidise my income”: urban farming in an East-African Town, Brill Academic, Leiden.Google Scholar
  9. Foeken D & Mwangi A 2000, ‘Increasing food security through urban farming in Nairobi’, in Bakker, N, Dubbeling M, Gündel S, Sabel-Koschella, U & de Zeeuw H, Growing cities, growing food: urban agriculture on the policy agenda: a reader on urban agriculture, DSE, Feldafing, p. 303.Google Scholar
  10. Gallardo-Lara, F & Nogales, R 1987, ‘Effect of the application of town refuse compost on the soil-plant system: a review’, Biological Wastes, vol. 19, pp. 35–62.CrossRefGoogle Scholar
  11. Hide, JM, Kimani, J & Thuo, JK 2001, Informal irrigation in the peri-urban zone of Nairobi, Kenya: an analysis of farmer activity and productivity, Report OD/TN 104, HR Wallingford & DFID, Wallingford.Google Scholar
  12. Hoitink, HAJ, Stone, AG & Han, DY 1997. Suppression of plant diseases by composts. HortScience. 32:184–187.Google Scholar
  13. Hollings, CS 1995, ‘Sustainability: the cross-scale dimension’, in Munasinghe, M & Shearer, W (eds) Defining and measuring sustainability: the biological foundations, The International Bank for Reconstruction and Development/World Bank, Washington, DC.Google Scholar
  14. Hoornweg, D, Thomas, L & Otten, L 1999, Composting and its applicability in developing countries, World Bank Working Paper Series 8, World Bank, Washington, DC.Google Scholar
  15. Ishani, Z, Gathuru, PK & Davinder, L 2002, Scoping study of urban and peri-urban poor livestock keepers in Nairobi, Mazingira Institute, Nairobi.Google Scholar
  16. ITDG-EA (Intermediate Technology Development Group-East Africa) 2002, Sustainable waste management strategy for Nairobi, Workshop Proceedings Report UN Complex, Gigiri, 24 September 2002.Google Scholar
  17. ITDG-EA (Intermediate Technology Development Group-East Africa) 2003 Nairobi solid waste management network http://www.wastenet.or.ke/ [Accessed 2 Dec 2004].
  18. IWMI (International Water Management Institute) 2002, The Hyderabad declaration on wastewater use in agriculture, IWMI, Colombo.Google Scholar
  19. JICA (Japan International Cooperation Agency) 1997, Economic Infrastructure. Master plan study of Nairobi. Google Scholar
  20. Kahindi, JHP, Karanja, NK, Alabaster, G & Nandwa, S (eds) 2001, Proceedings of the workshop on enhancement of productivity and sustainability of urban/peri-urban agriculture (UA/PUA) through efficient management of urban waste, UN-Habitat, Nairobi.Google Scholar
  21. Karanja, NK, Kwach, O & Njenga, M 2005, Low cost composting manual: techniques based on the UN-Habitat/Urban Harvest-CIP community based waste management initiatives, UN-HABITAT, Nairobi.Google Scholar
  22. Karanja, NK, Njenga, M, Prain, G, Munyao, P, Kang’ethe, E, Kironchi, G, Kabiru, C, Gathuru, K, Muneri, C, Kinyari, P, Githuku, C, Kaluli, W, Gathenya, J, Home, P, Githigia, S & Bebora, L 2008, Assessment of benefits and risks in wastewater reuse for agriculture in urban and peri-urban areas of Nairobi, Project Report, supported by IDRC.Google Scholar
  23. Kenya Meteorological Department (KMD), 2009. Climatological Data. (http://www.meteo.go.ke/customer/climat/rain.html).
  24. Kiongo, S & Amend, J 1999, ‘Linking (peri) urban agriculture and Organic waste management in Dar es Salaam’, paper presented at International IBSRAM-FAO workshop on urban and peri-urban agriculture, Accra, 2–6 August 1999.Google Scholar
  25. Lee-Smith, D 1993, Peasants, plantation dwellers and the urban poor: a study of women and shelter in Kenya, Thesis 4, Lund University, Sweden.Google Scholar
  26. Lee-Smith, D & Lamba, D 1991, ‘The potential of urban farming in Africa’, Ecodecision, vol. 3, pp. 37–40, Montreal, November.Google Scholar
  27. Lee-Smith, D, Manundu, M, Lamba, D & Gathuru, PK 1987, Urban food production and the cooking fuel situation in urban Kenya – national report: results of a 1985 national survey, Mazingira Institute, Nairobi.Google Scholar
  28. Lekasi, JK, Ndungu, KW & Kifuko, MN 2003, ‘A scientific perspective on composting’, in Savala, CEN, Omare, MN & Woomer PL (eds) Organic resource management in Kenya: perspectives and guidelines, FORMAT, Nairobi, pp. 65.Google Scholar
  29. Lock, K & De Zeeuw, H 2001, ‘Health and environmental risks associated with urban agriculture’ in Annotated bibliography on urban agriculture, Sida & ETC-RUAF, CD-ROM, RUAF, Leusden.Google Scholar
  30. Maxwell, D, Levin, C, Armar-Klemesu, M, Ruel, M, Morris, S & Ahiadeke, C 2000, Urban livelihoods and food and nutrition security in Greater Accra, Ghana, International Food Policy Research Institute (IFPRI) Research Report 112, IFPRI, Washington, DC.Google Scholar
  31. McIntire, J, Bourzat, D & Pingali, P 1992, ‘Crop-livestock interactions in Sub-Saharan Africa’, in Baltenweck, I, Staal, S, Ibrahim, MNM, Herrero, M, Holmann, F, Jabbar, M, Manyong, V, Patil, BR, Thornton, P, Williams, T, Waithaka, M & de Wolff, T (eds) SLP project on transregional analysis of crop-livestock systems level 1 report: broad dimensions of crop-livestock intensification across three continents, ILRI, CIAT, IITA, University of Peradeniya & BAIF, Nairobi.Google Scholar
  32. Ministry of Lands & Settlement 2006, Draft national land policy, Ministry of Lands, Nairobi.Google Scholar
  33. Ministry of Planning and National Development 2003, Economic survey, Ministry of Planning and National Development, Nairobi.Google Scholar
  34. Mougeot, LJA 1993: Overview-urban food self-reliance: significance and prospects. Ottawa: International Development Research Centre. IDRC Report Volume 21(3).Google Scholar
  35. Mougeot, L 2000, ‘Urban agriculture: definition, presence, potential and risks, main policy challenges’, paper presented at an international workshop on Growing cities growing food: urban agriculture on the policy agenda, La Habana, 11–15 October 1999.Google Scholar
  36. Mukisira, E 2005, ‘Opening speech’, in Ayaga, G, Kibata, G, Lee-Smith, D, Njenga, M & Rege, R (eds) Prospects for urban and peri-urban agriculture in Kenya, Urban Harvest, International Potato Center, Lima.Google Scholar
  37. Njenga, M, Gathuru, K, Kimani, K, Frost, W, Carsan, C, Lee-Smith, D, Romney D & Karanja, N 2004, Management of organic waste and livestock manure for enhancing agricultural productivity in urban and peri–urban Nairobi, Project Report, Mimeo.Google Scholar
  38. Nugent, RA 1997, ‘The Significance of Urban Agriculture’, in Baumgartner, B & Belevi, H (eds) A systematic overview of urban agriculture in developing countries, 2001, Swiss Federal Institute for Environmental Science (EAWAG) & Technology and Department of Water and Sanitation in Developing Countries (SANDEC), Zurich.Google Scholar
  39. Opresko, DM 1992, Toxicity summary for zinc and zinc compounds, Chemical Hazard Evaluation and Communication Group, Biomedical and Environmental Information Analysis Section, Health and Safety Research Division, Oak Ridge National Laboratory, Tennessee, http://www.eprf.ca/ebi/contaminants/zinc.html [Accessed 12 August 2008].Google Scholar
  40. Poulimenos, G, Doutsos, T, & Maxwell, DG 1996, ‘Highest and best use? Access to urban land for semi-subsistence food production’, Land Use Policy, vol.13, no. 3, pp. 181–195.CrossRefGoogle Scholar
  41. Republic of Kenya, Central Bureau of Statistics, Ministry of Finance and Planning 2001, The 1999 population and housing census, vol. 1.Google Scholar
  42. Savala, CEN 2003, ‘Using earthworms to make vermicompost’, in Savala, CEN, Omare, MN & Woomer, PL (eds) Organic resource management in Kenya: perspectives and guidelines, FORMAT, Nairobi.Google Scholar
  43. Savala, CEN, Omare, MN & Woomer, PL (eds) 2003, Organic resource management in Kenya: perspectives and guidelines, FORMAT, Nairobi.Google Scholar
  44. Situma, FDP 1992, ‘The environmental problems in the City of Nairobi, Kenya’, African Urban Quarterly vol. 7. nos. 1 and 2, February.Google Scholar
  45. Staal, S 2002, ‘Livestock and environment in peri-urban ruminant systems’, presentation at the LEAD/ILRI Seminar, International Livestock Research Institute, Nairobi, May 2002.Google Scholar
  46. Urban Harvest 2002, ‘Stakeholder meeting on food security and urban agriculture in Nairobi’, The Strategic Initiative on Urban and Peri-Urban Agriculture (SIUPA), CIP, Nairobi, 6 August 2002, Mimeo.Google Scholar
  47. Walkley, A & Black, IA 1934, ‘An examination of Degtjareff method for determining soil organic matter and proposed chromic acid titration method’, Soil Science, vol. 37, pp. 29–38.CrossRefGoogle Scholar
  48. World Bank 1997, The use of compost in Indonesia: proposed compost quality standards, Infrastructure Operations, Country Department III, East Asia and Pacific Region, Washington, DC.Google Scholar

Copyright information

© International Potato Center (CIP) 2010

Authors and Affiliations

  • Mary Njenga
    • 1
  • Dannie Romney
    • 2
  • Nancy Karanja
    • 1
  • Kuria Gathuru
    • 3
  • Stephen Kimani
    • 4
  • Sammy Carsan
    • 5
    • 6
  • Will Frost
    • 7
  1. 1.Urban Harvest, c/o CIPNairobiKenya
  2. 2.CABI AfricaNairobiKenya
  3. 3.Kenya Green Towns Partnership AssociationNairobiKenya
  4. 4.Kilimo Trust FoundationKampalaUganda
  5. 5.World Agroforestry Center, (ICRAF)NairobiKenya
  6. 6.University of the Free StateBloemfonteinSouth Africa
  7. 7.formally with the World Agroforestry CenterNairobiKenya

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