• E.O. A. OLUWALANA Department of Agricultural economics and Farm Management, Federal University of Agriculture, Abeokuta, Nigeria.
  • S. O. OLADEJI Department of Agricultural economics and Farm Management, Federal University of Agriculture, Abeokuta, Nigeria.
  • A. F. BELLO Department of Agricultural economics and Farm Management, Federal University of Agriculture, Abeokuta, Nigeria.



Yam flour processing, Yam Processors, Budgetary analysis, Saki


The study examined the economics of yam flour processing in Saki, Oyo State, Nigeria. Primary data were obtained using questionnaire. A multistage sampling procedure was used in selecting one hundred and twenty (120) yam processors. Data were analysed using descriptive statistics, budgetary analysis and multiple regressions. Results revealed that 86.5% of yam flour processors were female, 71.2% were married, and 41.4% had primary education. In addition, mean age, household size and production experience of the processors of yam flour were 40 years, 6 persons and 15 years respectively. The gross margin and net farm income were N146,770.03 and N141,536.79 per processing cycle, while the return on investment was 3.25 for every N1 invested which implies that yam flour processing is profitable. Multiple regression revealed that the coefficient of labour cost, transportation cost, cost of storage and packaging and distance to market were negatively significant at 5%, 1%, 1%, and 1% probability level. Also, year of processing experience and membership of association were positively significant at 1% and 5% probability level respectively. The main constraints facing processors of yam flour in the study area were inadequate storage facilities, lack of infrastructural facilities and problem associated with climate change. It is therefore recommended that policies that would enhance large processing capacity so that at the long-run, output and profit can be maximized.




Alinnor, I.J., Akalezi, C.O. 2010. Proximate and Mineral Compositions of Dioscorearotundata (White Yam) and Colocasiaesculenta (White Cocoyam), Pak. J. Nutr. 9(10): 998-1001.

Ayanwuyi, E., Akinboye, A.O., Oyetoro, J.O. 2011. Yam production in Orire local government area of Oyo State, Nigeria: farmers perceived constraints. World Journal of Young Researchers 1(2): 16–19.

Banmeke, T.O.A. 2010. Accessibility and utilization of Agricultural Information in the Economic Empowerment of Women Farmers in South Western Nigeria.Unpublished PhD Thesis, Department of Agricultural Extension and Rural Development, University of Ibadan, Nigeria.

Brunnschweiler, J., Luethi, D., Escher, F., Conde-Petit, B. 2004. Isolation and characterization of yam starch (Dioscoreaalata and Dioscoreacayenensisrotundata) from the Ivory Coast in comparison to other tuber starches. Starch/Stärke submitted.

Dumnnt, R., Vernier, P. 1997. Domestification of yam (D. cavensis and D. rotundata) within the Bariba ethnic group of Benin. Out Look on Agric. 29: 137-142.

Ike, P.C., Inoni, O.E. 2006. Determination of yam production and economic efficiency among small-holder farmers in south-eastern Nigeria. Journal of Central European Agriculture, 7(2):337-342.

International Institute for Tropical Agriculture 2009. Yam production in Africa. International Institute of Tropical Agriculture (IITA), Nigeria.

International Institute for Tropical Agriculture 2013. Healthy yam seed production.IITA Publications. Retrieved from IITA Website

Kay, D.E. 1987. Root Crops Tropical Development and Research Institute. London. Pp 122 -144.

Kleih, U., Phillips, D., Mignouna, D., Ogbonna, M., Siwoku, B. 2012. Yam improvement for income and food security in West Africa, Nigeria: scoping yam value chain analysis. Ibadan: IITA. Retrieved from

Lebot, V., Malapa R., Molisade, T., Machad J.L. 2005. Physicochemical characterization of yam (D. alataL.) tubers from Vanuatu. Genetic Resources and Crop Evolution.

Migap, J. P., Audu, F. 2012. Empirical study on yam cultivation and economic development of Taraba State: Case study of Wukari local government area. Journal of Business and Organizational Development 4:32–52.

National Bureau of Statistics 2012. LSMS – integrated surveys on agriculture: general household survey panel 2010/11. Available at: (Accessed: 17th January 2014).

Njoku, J.E., Odii, M.A.C.A 1991. Determinants of Loan Repayment under the Special Emergency Loan Scheme (SEALS) in Nigeria; A case study of Imo state. African review of money, finance and banking in Africa, Milano, Italy.

Philip, T.P., Taylor, D.S., Sanni, L., Akorada, M.O. 2004. Cassava Industrial revolution in Nigeria “The potential for a new industrial crop”. International Institute of tropical agriculture, Ibadan, Nigeria. Pp 43.

Salawu, M.B., Ibrahim, A.G., Lamidi, L.O., Salau, M.A., Ogunleye, B.T. 2014. Economic Analysis of yam processing in Oyo State. European Journal of Business management 6(39)

Scott, G.J, Rosegrant M.W., Ringler, C. 2000. Roots and Tubers for the 21st Century Trends, Projections, and Policy Options Food, Agriculture, and the Environment Discussion Paper 31, International Food Policy Research Institute. Washington: DC USA.

Zaknayiba, D.B., Tanko, L. 2013. Costs and returns analysis of yam production among small scale farmers in Karu local government area, Nasarawa State, Nigeria. PAT 9(1): 73–80.