Analysis of the economic benefits of cassava farming using Cassava NPK fertilizer 17-6-25 Pusri in Tulang Bawang Regency

Specific fertilizers are fertilizers that are specially formulated for certain crops such as NPK Cassava 17-6-25 fertilizer created by PT Pupuk Sriwidjaja Palembang to increase the production of cassava plants which has a direct impact on increasing farmers' income. This study aims to analyze the economic benefits of cassava farming before the implementation of the Demonstration Plot compared to after the implementation of the Demonstration Plot with the use of Cassava NPK fertilizer with a balanced fertilization application. This research will be carried out in Tulang Bawang Regency, Lampung Province in September 2025. Farmers were sampled using a simple random sampling method with a total of 70 samples. The data collected in this study includes primary data and secondary data. The analysis method used is the R/C Ratio. The results showed that the balanced use of Cassava NPK fertilizer was able to increase productivity higher than the use of ordinary NPK fertilizer, with a percentage of 56.65%. This shows that the use of cassava NPK fertilizer provides better economic benefits.