Research Article

Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria

Number: 1 May 24, 2026
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Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria

Abstract

This study focused on the determinants of technical efficiency of sweet potatoes farming in North West, Nigeria. A simple random sampling technique was used to select 240 farmers using on a well-structured questionnaire. The data were analyzed using descriptive statistics, stochastic production efficiency frontier model, and Kendall’s coefficient of concordance. The results show that sweet potato farmers were predominantly middle-aged (44 years), experienced (14 years), and educated (13 years), with an average household size of 9 persons. The mean technical efficiency score was 0.53, indicating that farmers operated at about 53% of their potential output, leaving a 47% efficiency gap that could be closed through improved resource management. The production frontier estimates showed that farm size, and labour, significantly and positively influenced the output of sweet potato, while technical inefficiency was significantly reduced by education, farming experience, and access to credit. A profitability test revealed a significant difference between production costs (₦548,074) and returns (₦1,125,500). The major constraints faced by farmers include limited access to credit, low education level, poor extension contact, and lack of cooperative memberships. The policy interventions should prioritize farmer education, improved extension contact, credit access, and provision of productivity-enhancing inputs to bridge the efficiency gap and promote sustainable agricultural development in Nigeria’s root and tuber subsector.

Keywords

References

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  5. Ahmed, M. & K. Melesse, (2018). Impact of Off-Farm Activities on Technical Efficiency: Evidence from Maize Producers of Eastern Ethiopia. Agricultural and Food Economics, 6(3), 1-15. https://doi.org/10.1186/s40100-018-0098-0
  6. Alabi, O. O., Oladele, A. O., & Maharazu, I. (2022). Economies of Scale and Technical Efficiency of Smallholder Pepper (Capsicum species) Production in Abuja, Nigeria. Journal of Agricultural Sciences (Belgrade), 67(1), 63–82. https://doi.org/10.2298/JAS.2201063A
  7. Azogu, I & Olomo, V.O (2002). Processing Options for Roots and Tubers under the RTEP Initiative: Constraints and Opportunities. Paper Presented at the PFT Workshop, Makurdi, 17 August, 2002.
  8. Cochran, W.G. (1963). Sampling Techniques, 2nd Ed., New York: John Wiley and Sons, Inc.135pp

Details

Primary Language

English

Subjects

Agricultural Economics, Applied Economics (Other), Agronomy

Journal Section

Research Article

Publication Date

May 24, 2026

Submission Date

November 1, 2025

Acceptance Date

February 24, 2026

Published in Issue

Year 2026 Number: 1

APA
Alabı, O. O., Aluwong, J., Sunday, A., Michael Oguche, A., Abdulsalaam, Z., & Eboh, K. (2026). Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria. Ziraat Fakültesi Dergisi, 1. https://doi.org/10.54975/isubuzfd.1815477
AMA
1.Alabı OO, Aluwong J, Sunday A, Michael Oguche A, Abdulsalaam Z, Eboh K. Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria. ISUBU JAF. 2026;(1). doi:10.54975/isubuzfd.1815477
Chicago
Alabı, Olugbenga Omotayo, Jeremiah Aluwong, Agada Sunday, Abah Michael Oguche, Zinnatu Abdulsalaam, and Kennedy Eboh. 2026. “Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria”. Ziraat Fakültesi Dergisi, no. 1. https://doi.org/10.54975/isubuzfd.1815477.
EndNote
Alabı OO, Aluwong J, Sunday A, Michael Oguche A, Abdulsalaam Z, Eboh K (May 1, 2026) Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria. Ziraat Fakültesi Dergisi 1
IEEE
[1]O. O. Alabı, J. Aluwong, A. Sunday, A. Michael Oguche, Z. Abdulsalaam, and K. Eboh, “Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria”, ISUBU JAF, no. 1, May 2026, doi: 10.54975/isubuzfd.1815477.
ISNAD
Alabı, Olugbenga Omotayo - Aluwong, Jeremiah - Sunday, Agada - Michael Oguche, Abah - Abdulsalaam, Zinnatu - Eboh, Kennedy. “Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria”. Ziraat Fakültesi Dergisi. 1 (May 1, 2026). https://doi.org/10.54975/isubuzfd.1815477.
JAMA
1.Alabı OO, Aluwong J, Sunday A, Michael Oguche A, Abdulsalaam Z, Eboh K. Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria. ISUBU JAF. 2026. doi:10.54975/isubuzfd.1815477.
MLA
Alabı, Olugbenga Omotayo, et al. “Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria”. Ziraat Fakültesi Dergisi, no. 1, May 2026, doi:10.54975/isubuzfd.1815477.
Vancouver
1.Olugbenga Omotayo Alabı, Jeremiah Aluwong, Agada Sunday, Abah Michael Oguche, Zinnatu Abdulsalaam, Kennedy Eboh. Determinants of Technical Efficiency of Sweet Potatoes Farming in North West, Nigeria. ISUBU JAF. 2026 May 1;(1). doi:10.54975/isubuzfd.1815477

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