Research entitled "The Effect of Ketapang Leaf POC and NPK 16:16:16 on the Production of Gambas Plants (Luffa acutangula L.)", was carried out at the Experimental Garden of the Faculty of Agriculture, Islamic University of Riau from September to December 2022. The aim of the research was to determine the effect of interactions liquid organic fertilizer from ketapang leaves and NPK 16:16:16 on t…