This research empirically determined the cost efficiency of the farmers that participated in the IFAD/VCD programme in Niger State of Nigeria. The study elicited cross-sectional data of the 2018 cropping season viz. well-structured questionnaire complemented with interview schedule from a sample size of 110 respondents selected through a multi-stage sampling technique. https://www.marketingjeunesse.com/product-category/volcanic-ash-paste/