This research aims to determine the effect of interactions and main factors of trichocompost and organic NPK on the growth of oil palm (Elaeis guineensis Jacq.) in pre-nursery on PMK media. This research was carried out in the experimental garden of the Faculty of Agriculture, Islamic University of Riau, Jalan Air Tepi Tepi, Kelurahan Kunci, Bukit Raya sub-district, Pekanbaru city. This researc…