TY - SER AU - Busato,J.G. AU - Zandonadi,D.B. AU - Dobbs,L.B. AU - Façanha,A.R. AU - Canellas,L.P. TI - Humic substances isolated from residues of sugar cane industry as root growth promoter KW - CANA DE AÇUCAR KW - RESÍDUO INDUSTRIAL KW - REGULADOR DE CRESCIMENTO KW - RAIZ ER -