This study is to examine the decision-making process of cassava farmers in Banjar Margo Regency, Tulang Bawang Regency, Lampung Province, in choosing to use or not to use NPK 17-6-25 Pusri cassava fertilizer. Cassava NPK Fertilizer is a product newly developed by PT. Pupuk Sriwidjaja since 2016. Pupuk Indonesia prioritizes the production of NPK in the fertilizer industry because it is considere…