Soares, P.F.C., Zuchello, F., Anjos, L.H.C. dos, Pereira, M.G. and Pessim de Oliveira, A.P. 2015. Soil attributes and c and n variation in histosols under different agricultural usages in the state of Rio de Janeiro, Brazil . Bioscience Journal. 31, 5 (Sep. 2015), 1349–1362. DOI:https://doi.org/10.14393/BJ-v31n5a2015-26365.