Melo, R.O. de, Baldotto, M.A. e Baldotto, L.E.B. 2015. Corn initial vigor in response to humic acids from bovine manure and poultry litter. Semina: Ciências Agrárias. 36, 3Supl1 (jul. 2015), 1863–1874. DOI:https://doi.org/10.5433/1679-0359.2015v36n3Supl1p1863.