How do you add potassium to soil effectively?

To add potassium to soil effectively, you can use potassium-rich fertilizers like potassium sulfate or potassium chloride. These can be applied directly to the soil or mixed into compost before adding it to the soil. Another method is to use potassium-containing organic materials like wood ash or banana peels. Regular soil testing can help determine the appropriate amount of potassium needed for your specific soil conditions.