Adoption Intensity Determinants for Improved Sweet Potato Varieties among Farmers in Nigeria
الموضوعات :راشد آداولا 1 , کهینده اوگونلی 2 , ویلیامز ادئوله 3
1 - گروه ترویج کشاورزی و توسعه روستایی، دانشگاه علوم کشاورزی، دانشگاه لادوک آکینتولا، اوگبوموسو، نیجریه
2 - گروه ترویج کشاورزی و توسعه روستایی، دانشگاه علوم کشاورزی، دانشگاه لادوک آکینتولا، اوگبوموسو، نیجریه
3 - گروه ترویج کشاورزی و توسعه روستایی، دانشگاه علوم کشاورزی، دانشگاه لادوک آکینتولا، اوگبوموسو، نیجریه
الکلمات المفتاحية: Tobit, transformation, adoption, factors, varieties,
ملخص المقالة :
Sweet potato (Ipomoea batatas) is one of the stable tuber crops consumed by many households in Nigeria. It can be found in different varieties and exist in many colours of skin and flesh. The production of this important crop is still very low, thereby compromising food security. Sweet potato is one of the target commodity crops under the Nigerian Agriculture Sector Investment Opportunities. However, improved sweet potato production has not been widely adopted among farmers Oyo state hence, the need to investigate factors affecting the adoption of improved sweet potato varieties among farmers in Oyo state. Data were collected from 350 farmers randomly selected from two agricultural zones in the state. The data collected were presented using descriptive statistics and analysed using Tobit regression model. Results showed that farm size, age, years of formal education, early maturing, high yield potential, market availability, resistant to pests and diseases and availability of vines significantly influenced the adoption of improved sweet potato varieties. Availability of vines of improved varieties, high yield potential, early maturity, resistant to pests and diseases and market availability were the technology-specific attributes that influenced both the adoption of improved sweet potato varieties and its use intensity. The study, therefore suggests that attribute preferences of farmers need to be integrated into the development of improved sweet potato varieties by the researchers to enhance its adoption and use intensity.
Akinola, A. A., Alene, A. D., Adeyemo, R., Sanogo, D., Olanrewaju, A. S., Nwoke, C., Nziguheba, G., & Diels, J. (2010). Determinants of adoption and intensity of use of balanced nutrient management systems technology in the Northern Guinea Savanna of Nigeria. Journal of International Agriculture, 49(1), 25-45.
Amengor, N.E., Owusu-Asante, B. Adofo, K., Acheampong,P .P., Nsiah-Frimpong, B.
Nimo-Wiredu, A., Adogoba, D., Haleegoah, J., Adu-Appiah, A., Baafi, E., & Sagoe, R. (2018). Adoption of improved sweet potato varieties in Ghana. Asian Journal of Agricultural Extension, Economics & Sociology, 23(3), 1-13.
Ayoade, M.A. (2017). Suitability assessment and mapping of Oyo State, Nigeria, for rice cultivation using GIS. Journal of Theoretical and Applied Climatology, 129, 1341-1354.
Bello, M., Daudu, S., Galadima, O. E., Anzaku, T. K. A., & Abubakar, A. A. (2012). Factors influencing adoption of crop-based technologies in Jekwe Development Area of Nassarawa State, Nigeria. Global Advanced Research Journal of Agricultural Science, 1(8), 250-256.
Benue State Agricultural and Rural Development Authority (BNARDA), (2007). Annual Report for year 2007. Makurdi, Nigeria.
Bergh, K., Orozco, P., Gugerty, M. K., & Anderson, L. (2012). Nigeria Sweet Potato
Value Chain Highlights. Evans Sch Nationsool of Policy Analysis and Research (EPAR) Washington, US. EPAR Brief No. 220.
Berhanu, G., & Swinton, S. M. (2003) Investment in soil conservation in northern Ethiopia: The role of land tenure security and public programme. Agricultural Economics, 29, 69-84.
Chukwuji, O.C., & Ogisi, O.D. (2006). Tobit analysis of fertilizer adoption by smallholder cassava farmers in Delta State. Nigeria Agricultural Journal, 1(4), 240-248.
Centro Internacional de la Papa (CIP) (2000). The effect of women farmers’ adoption of orange fleshed sweet potatoes: Stories from the field: International Potato Centre (CIP) Peru.
Feder, G., Just, R. E., & Zilberman, D. (1985). Adoption of agricultural innovations in developing countries: A survey. Journal Economic Development Cultural Change, 33(2), 255-298.
Food and Agriculture Organization of United Nations (FAO). (2011). Crop Statistics FAOSTAT Database. Rome, Italy. Retrieved December 15, 2017 from www.http://faostat.fao.org/default.aspx]
Food and Agriculture Organization of United Nations (FAO). (2018). FAOSTAT Database. Crop Statistics Rome, Italy. Retrieved May 20, 2018 from http://www.fao.org/faostat/en/#data/QC
Ehirim, N. Onyeagocha, S., Ben-Chendo, G., Essien, U., Osuji, E. & Okwara, M. (2016): Farming techniques, environmental challenges, and technical efficiency of sweet potato production in Abia State, Nigeria. International Journal of Agricultural Management and Development, 6(4), 409-420.
Fufa, B., & Hassan, R. M. (2006). Determinants of fertilizer use on maize in Eastern Ethiopia: a weighted endogenous sampling analysis of the extent and intensity of adoption. Agrekon, 45(1), 38-49.
Idrisa, Y. L., Ogunbameru, B.O., & Madukwe, M.C. (2012). Logit and Tobit analyses of the determinants of likelihood of adoption and extent of adoption of improved soybean seed in Borno State, Nigeria. Greener Journal of Agricultural Sciences,
2(2), 37-45.
International Potato Center (CIP) (2012). Sweet potato facts and figures. Retrieved October 18, 2013 from http://cipotato.org/sweetpotato/facts
International Trade Centre (ITC) (2012). Trade competitiveness map. Retrieved November 16, 2013, from http://www.trademap.org
Kaguongo, W., Ortmann, G., Wale, E., Darroch M., & Low, J. (2012). Factors influencing adoption and intensity of adoption of orange flesh sweet potato varieties: Evidence from an extension intervention in Nyanza and Western provinces, Kenya. African Journal of Agricultural Research, 7(3), 493-503.
Kudi, T. M., Bolaji, M., Akinola M. O., & Nasa’I D. H. (2011). Analysis of adoption of improved maize varieties among farmers in Kwara State, Nigeria. International Journal of Peace and Development Studies, 1(3), 8-12.
Nchinda, V. P., Ambe, T.E., Nathalie, H., Leke, W., Che, M.A., Nkwate, S.P., Ngassam, S.B., & Njualem, D.K. (2010). Factors influencing the adoption intensity of improved yam (Dioscorea spp.) seed technology in the western highlands and high guinea savannah zones of Cameroon. Journal of Applied Biosciences, 36, 2389- 2402.
Nkonya E., Schroeder, T., & Norman, D. (1997). Factors affecting the adoption of improved maize seeds and fertilizer in Northern Tanzania. Journal of Agricultural Economics, 48(1), 1-12.
Wale, E., & Yallew A. (2007). Farmers’ variety attribute preferences: Implications for breeding priority setting and agricultural extension policy in Ethiopia. African Development Review, 19(2), 379-396.
