Breda, F.A. da F. et al. 2016. Productivity of maize in the presence of nitrogen levels and inoculation with <i>Herbaspirillum seropedicae</i>. Pesquisa Agropecuaria Brasileira. 51, 1 (Feb. 2016), 45–52. DOI:https://doi.org/10.1590/S1678-3921.pab2016.v51.21219.