Kwaghe International Journal of Sciences and Technology
Kwaghe International Journal of Sciences and Technology aims to publish rigorous, peer-reviewed scholarship that advances natural sciences, agriculture, and technology through high-quality quantitative, qualitative, and mixed-methods research. The journal prioritizes methodological transparency, scholarly relevance, and contributions that strengthen scientific knowledge and applied innovation. • Natural Sciences: promote robust research that advances knowledge in core scientific fields and their applications. • Agricultural Development: support scholarship that strengthens agriculture, food systems, environmental sustainability, and rural productivity. • Scientific Methods: welcome research using quantitative, qualitative, or combined approaches, provided the design and analysis are clearly justified. • Technology and Application: encourage work that connects scientific findings to technological innovation, practical implementation, and real-world problem-solving. Submissions should clearly state the research problem, explain the methodological approach transparently, present defensible evidence, and demonstrate a meaningful contribution to science, technology, and/or agriculture. Scope KIJST welcomes articles in natural sciences, agriculture, and related scientific fields. The journal accepts research employing surveys, experiments, content analysis, observation, interviews, focus groups, documentary analysis, and other acceptable approaches, provided the analytic logic is rigorous and clearly reported. • Natural Sciences: physics, biology, chemistry, and related scientific disciplines. • Agriculture: soil science, animal husbandry, crop protection, fisheries, and allied agricultural studies. • Life and Environmental Sciences: ecology, environmental science, biological systems, and applied natural-science research. • Technology and Applied Science: scientific and technological studies with clear practical, industrial, environmental, or agricultural relevance. • Interdisciplinary Research: studies bridging science, agriculture, and technology to address complex societal, environmental, or development-related issues. Priority is given to original research articles that contribute clearly to the body of knowledge, demonstrate appropriate methodological rigor, and offer implications for scientific advancement, agricultural improvement, or technological application.
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Evaluation of Economics Efficiency of Yam Production in Wukari Local Government Area of Taraba State
P. J. Tsokwa
Kwaghe International Journal of Sciences and Technology Vol 3 No 3 (2026): Kwaghe International Journal of Sciences and Technology
Publisher : Darul Yasin Al Sys
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DOI: 10.58578/kijst.v3i3.12027
Improving resource-use efficiency is essential for enhancing the profitability and sustainability of yam production. This study assessed the costs and returns and evaluated the technical and economic efficiency of yam production in Wukari Local Government Area, Taraba State, Nigeria. Primary data were collected from 120 yam farmers selected through a multistage sampling procedure and analyzed using net farm income analysis and stochastic frontier models. The results indicate that yam production was profitable, generating an average gross margin of ₦217,441.67, with a total variable cost of ₦628,830.25 and a return of ₦0.30 per naira invested. Seed represented the largest variable-cost component (49%), followed by labour (38%). The stochastic production frontier yielded a gamma estimate of 0.87, indicating that 87% of the composite-error variance was attributable to technical inefficiency. The economic efficiency analysis similarly attributed 92% of the observed variation to differences in farmers’ economic efficiency. Farm size, seed quantity, fertilizer application, and labour positively influenced yam output, whereas agrochemical use had a negative association, suggesting possible overapplication or inappropriate use. Educational attainment, household size, farming experience, and age significantly reduced economic inefficiency, demonstrating the importance of farmers’ socioeconomic characteristics and human capital. The study concludes that although yam production in the study area is profitable, considerable scope remains for improving technical and economic efficiency through more effective resource allocation, greater access to credit, and the adoption of improved farming practices. These findings provide empirical guidance for policies that prioritize subsidized production inputs, strengthened agricultural extension services, farmer education, and expanded credit access to improve the productivity and sustainability of yam production.