ABSTRACT This study aims to determine the effect of the interaction between the application of P fertilizer and AMF, a single factor, and to obtain the best combination of P and CMA for the growth and yield of peanut (Arachis hypogaea L.) in Ultisol medium. This research was conducted at the experimental garden of the Faculty of Agriculture, University of Riau, Bina Widya Campus, Simpang Baru …