This study aims to increase the production of sweetcorn on peat land by giving rice husk ash formula with rice straw compost and phosphorus fertilizer. This research was conducted on peatland jl.Madina RT 01 RW 01, Kelurahan Tuah Madani, Tampan, from February - May 2017. This study used a RBD with 2 factors and 3 replications. Factor I is the formula of rice husk ash with rice straw compost (to…