Research entitled "Application of POC Leaf Gamal (Gliricida sepium L.) and Organic NPK on Growth and Production of Cabbage (Brassica oleracea var. capitata L.)". This research was carried out at the Experimental Garden of the Faculty of Agriculture, Riau Islamic University, Pekanbaru, for 4 months, starting from January to April 2021. The purpose of the study was to determine the interaction an…