Improvement of N, P, and K availability of post-brick mining soil to increase maize yield by applying different types of biochar
The low fertility of post-brick mining soil may be improved by applying biochar to the soil because biochar is an excellent soil amendment, although its quality varies depending on the raw materials used.Therefore, soil fertility, nutrient availability, and crop Toddler yields are affected by the type and amount of biochar added to soils.This study