Kaneko, F.H. et al. 2015. SOURCES OF NITROGEN AND MODES OF APPLICATION IN MAIZE UNDER NO TILLAGE CROP. Revista Brasileira de Engenharia de Biossistemas. 9, 2 (Jun. 2015), 191–196. DOI:https://doi.org/10.18011/bioeng2015v9n2p191-196.