This study examined the institutional factors influencing adoption of recommended practices of agrochemicals among crop farers in Kaduna and Ondo States of Nigeria. A total of 260 crop farmers who have sustained the use of agrochemicals for at least five years were selected for the study using multi-stage sampling technique. Descriptive statistics (mean and percentages) and inferential statistics (Multiple regression) was used for data analysis. Data was collected using pretested, structured interview schedule. The results obtained revealed that adoption of RAPs is positively significantly influenced by degree of exposure to training in both States. This study therefore, recommends that regular training on the use of agrochemical should be organized for farmers by extension agencies in collaboration with relevant stakeholders. Also, all forms of communication through the print and electronic media should be used by extension agencies in appealing to farmers to enhance adoption of RAPs