This study aims to determine the interaction and main effect of Nasa POC concentration and KCl fertilizer dose on the growth and yield of honey gourd plants. This research was conducted at UIRA Farm Agro, Faculty of Agriculture, Islamic University of Riau, Jalan Teropong No. 62, Kubang Jaya Village, Siak Hulu District, Kampar Regency for four months starting from January to April 2021. The desi…