Wood ash and oil palm bunches are rich sources of potassium. Potassium is an essential macronutrient required by plants for their growth and development. It plays a vital role in regulating water balance, strengthening plant cells, and improving resistance to diseases and stress. Wood ash is a byproduct of burning wood, while oil palm bunches are a residue of the oil extraction process from the fruit of the oil palm tree. Both of them are commonly used as organic fertilizers in agriculture due to their high potassium content.