Schiavo, J.A. et al. 2012. Carbon management index and chemical attributes of an Oxisol under different management systems. Pesquisa Agropecuaria Brasileira. 46, 10 (Jan. 2012), 1332–1338. DOI:https://doi.org/10.1590/S1678-3921.pab2011.v46.8292.