Enhancing cation exchange capacity ofweathered soils using biochar: Feedstock, pyrolysis conditions and addition rate - Domingues, R. R; Sánchez-Monedero, M. A; Spokas, K. A; Melo, L. C. A; Trugilho, P. F; Valenciano, Murilo Nunes; Silva, C. A (Agronomy, 2020)