This study aimed at determining the performance of yam farms in Oyo State of Nigeria. Data collection was
through well structured questionnaire administered on 110 respondents selected by simple random sampling
technique. The methods of analysis used were descriptive statistics and stochastic frontier production function
analysis using the Ordinary Least Square (OLS) and Maximum Likelihood Estimates (MLE) criteria to estimate
the parameters of the production function. Results showed that majority of the farmers were middle aged and
quite experienced in yam production. Also, there was moderate level of literacy as 88 % of the respondents had
one form of education or the other. Farming was majorly on small-scale level as the average farm size was
2.5hectares. Result further showed that age, farm size, quantity of yam planted, agro-chemicals and cost on
implements were positively related to output while total labour, education, experience, access to extension and
credit facility carried negative signs. However, farm size, agro-chemicals and quantity of yam have significant
influence on total output. It was recommended that in order to boost yam production more land should be
devoted to its production in the study area.