The study found that medium sand bottom ash soil is best for growing corn. Nitrogen fertilizer has the biggest impact on yield, followed by potassium and then phosphorus. The amount of nitrogen, phosphorus, and potassium applied can be optimized using a quadratic equation. Combining nitrogen, phosphorus, and potassium has a synergistic effect on corn yield. To achieve a target output of 11,000-13,000 kg/hm2, it is recommended to use 240-300 kg/hm2 of pure nitrogen, 75-90 kg/hm2 of P2O5, and 75-90 kg/hm2 of K2O.