Purpose: This study made comparisons on the state of Knowledge, attitude and practices of the trained farmers for the year 2017 against the same cohort in the year 2023 with an aim of evaluating the long-term influence of agricultural training in maize farming in Nandi County Kenya. The study also evaluated the state of Knowledge, attitude and practices of the same trained farmers against untrained farmers by the end of the year 2023. Methodology: A previous study was followed up in the year 2023 to evaluate the role and a six-year long-term influence of the training on the practices. The data was collected through farm interviews. The positive responses of the practices obtained from the administered questionnaires were recorded.