Oliveira, K. S. de, M. C. Mendes, G. A. Ilibrante, N. Antoniazzi, A. J. Stadler, e A. P. Antoniazzi. “Export of N, P and K in Barley Subjected to Fertilizer Doses Formulated With and Without Humic Substance at Sowing”. Acta Scientiarum. Agronomy, Vol. 41, nº 1, maio de 2019, p. e42690, doi:10.4025/actasciagron.v41i1.42690.