This research was carried out at the Experimental Garden of the Faculty of Agriculture, Riau Islamic University, Jalan Kaharudin Nasution No. 113, Air Winter Village, Bukit Raya District, Pekanbaru which was carried out for 5 months from November 2023 to March 2024. The research aims to determine the main and interaction effects of sugarcane filter cake waste and chitosan on avocado pre-nursery…