Denise Nunes Pereira, Walmer Bruno Rocha Martins, Vanda Maria Sales de Andrade e Francisco de Assis Oliveira 2017. Influence of litter removal in the content of phosphorus and potassium in Eastern Amazon. Revista Brasileira de Ciências Agrárias. 12, 3 (set. 2017), 380-385. DOI:https://doi.org/10.5039/agraria.v12i3a5458.