ABSTRACT This study aims to identify the effect of fertilizer interaction kascing and NPK, as well as fertilizer single factor Kascing and NPK on the growth of upland rice plants and get the best treatment. This research was carried out at the Experimental Garden of the Faculty of Agriculture, University of Riau, Jalan Bina Widya km 12.5 Pekanbaru. The study was conducted from March 2023 to Ju…