The study looked at how adding biochar to podzolic soil affects its properties. They tested different types of soil, biochar, and application rates. The results showed that using 2% powdered biochar improved the soil the most. It reduced soil density, increased nutrient levels, and made the soil hold more water. The biochar also made the soil less acidic and improved its ability to retain water. Overall, adding 2% powdered biochar is the best way to enhance the quality of podzolic soil.