Sabundjian, M.T., Arf, O., Kaneko, F.H. and Nascimento, V. 2014. SOURCES NITROGEN IN BEAN WINTER IN SUCCESSION TO GRASS WITH AND WITHOUT inoculation Azospirillum brasilense:ECONOMIC ANALYSI. Revista Brasileira de Engenharia de Biossistemas. 8, 2 (Dec. 2014), 139–145. DOI:https://doi.org/10.18011/bioeng2014v8n2p139-145.