Farias, I., Fernandes, A. de P. M., Lira, M. de A., França, M. P., & Santos, V. F. dos. (2014). Effect of organic fertilizer on production of corn, sorghum and elephant grass forage. Pesquisa Agropecuaria Brasileira, 21(10), 1015–1022. https://doi.org/10.1590/S1678-3921.pab1986.v21.15026