The study looked at how different types of fertilizers affect potato yield in acidic soil in Ethiopia. They tested five fertilizer sources on two potato varieties in four districts. The results showed that the blended NPSB fertilizer was best in two locations, while urea and DAP were better in another. The location and fertilizer type had a big impact on total tuber yield. The study found that the location and fertilizer source significantly influenced the yield and yield components of potatoes in both limed and unlimed soil conditions.