The objective of current research was to study the effect of Rock Phosphate on colonization of indigenous mycorrhizae, P absorption, and growth of maize, upland rice and long bean in lmperata cyl indrical-grown ultisols. The research was conducted from August 2003 to March 2004, using Split Plot Design. The Main plot was crop type (maize, upland rice and long bean); while the sub-plots was Rock…