Abstract
Persistent food insecurity accompanied by low and declining farm household incomes are a common feature of many small holder maize and bean producers in western Kenya. This has been largely attributed to soil nutrient depletion, among other factors. One way of addressing soil fertility problems in many maize-based cropping systems is the use of agro-forestry based technologies. We carried out a survey in western Kenya (Vihiga and Siaya districts) aimed at analyzing the financial and social profitability of use of agroforestry based (improved tree fallows) and other soil fertility management technologies among smallholder farmers. The Policy Analysis Matrix (PAM) was used to determine the financial and social profitability of different production systems, which were categorized on the basis of the technology used to address soil fertility. Farm budgets were first prepared and in turn used to construct the PAMs for six production systems namely: maize–bean intercrop without any soil fertility management inputs; maize–bean intercrop with chemical fertilizers only; maize–bean intercrop with a combination of chemical fertilizers and improved fallows; maize–bean intercrop with improved fallows only; maize–bean intercrop with a combination of improved fallows and rock phosphate; and maize–bean intercrop with Farm Yard Manure (FYM) only. Results revealed that use of chemical fertilizers with improved fallows was the most profitable technology and thus the study recommended that farmers be encouraged to intensify the use of chemical fertilizers. To make chemical fertilizers more accessible to farmers, the study also recommended that good linkages be made between farmers and micro credit institutions so that small scale farmers are not actually biased against due to lack of collateral when credit is being advanced to clients.
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Notes
Farmers in western Kenya were found to be net buyers of food. They consumed almost all the maize produced and supplemented the same by buying from the market.
References
Adesina A, Coulibaly ON (1998) “Policy and competitiveness of agro-forestry based technologies for maize-production in Cameroon”: An application of Policy Analysis Matrix. Agricult Econ 19:1–13
Franzel S (1999) Socioeconomic factors affecting the adoption potential of improved tree fallows in Africa. Agro Forest Syst 47:305–321
Gittinger JP (1982) Economic analysis of agricultural projects. The Johns Hopkins University Press, Baltimore and London
Gonzales LA, Kasryno F, Perez ND, Rosegrant MW (1993) Economic incentives and comparative advantage in indonesian food crop production. International Food Policy Research Institute, Washington, DC
Hassan RM, Murithi F, Kamau G (1998) Determinants of fertilizer use and the gap between farmers yields and potential yields in Kenya In: Hassan RM (ed) Maize technology development and transfer, a GIS application for research planning in Kenya. CABI International, pp 175–192
Heisey PA, Mwangi W (1995) Fertilizer use and maize production in sub-saharan Africa. International Maize and Wheat improvement (CIMMYT). CIMMYT, Mexico
Jama BA, Niang IA, Amadalo B, De wolf J, Rao MR, Buresh RJ (1999) The potential of improved fallows to improve and conserve the fertility of nutrient depleted soils of western Kenya In: Proceedings of the 6th Biennial KARI Scientific Conference (KARI) pp 133–144
Kamanga BCG, Kanysma-Phiri GY, Minae S (1999)Intercropping perennial legumes for green manure additions to maize in southern Malawi. Afr Crop Sci J 7(4):355–365
Kwesiga FR, Franzel S, Place F, Phiri D, Simwanza CP (1999) Sesbania sesban improved fallows in eastern Zambia. In: Jama B, Buresh RJ, Place FM (eds) Sesbania tree fallows on phosphorus sites: maize yield and financial benefits. Agron J 90:717–726
Kydd J, Pearce R, Michael S (1997) Economic analysis of commodity systems: extending the policy analysis matrix to account for environmental effects and transaction costs. Agricult Syst 55(2):323–345
Monke AE, Pearson RS (1989) The policy analysis matrix for agricultural development. Cornel University Press, Ithaca, USA
Morris ML (1989) Guideline on determining the comparative advantage through DRC (Domestic Resource Cost) Analysis. Working paper No. 89/10, CIMMYT Economic Program, Mexico.
Nekesa P, Maritim HK, Okalebo JR, Womer PL (1999) Economic analysis of maize–bean production using a soil fertility replenishment product (PREP-PAC) in Western Kenya. Afr Crop Sci J 7(4):585–590
Nyirongo CV, Mughogho SK, Kumwenda SD (1999) Soil Fertility studies with compost and igneous phosphate rock amendments in Malawi. Afr Crop Sci J 7(4):415–422
Place F, Wangila J, Rommelse R, de Wolf J (2000) Economics of Agro-forestry technologies in the pilot project area in Western Kenya. ICRAF, Nairobi, Kenya
Republic of Kenya (2002) Interim poverty Reduction strategy paper for the period 2002–2003. Government printer, Nairobi
Rommelse R (2000) Economic Assessment of Biomass Transfer and Improved fallow trials in Western Kenya. Natural Resource Problems, Priorities and Policies Programme Working Paper 2001-3. International Centre for Research in Agroforestry, Nairobi, Kenya
Sanchez PA, Jama BA (2000) Soil fertility replenishment takes off in East and Southern Africa. ICRAF, Nairobi, Kenya
World Bank (1996) African development indicators. World bank, Washington, DC
Acknowledgements
We are so grateful to the Tropical Soil Biology and Fertility Programme and the Rockefeller Foundation’s Forum for Agricultural Resource Husbandry for the financial support that made this work possible.
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Maithya, J.M., Kimenye, L.N., Mugivane, F.I. et al. Profitability of agro-forestry based soil fertility management technologies: the case of small holder food production in Western Kenya. Nutr Cycl Agroecosyst 76, 355–367 (2006). https://doi.org/10.1007/s10705-006-9062-6
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DOI: https://doi.org/10.1007/s10705-006-9062-6