Ferrari, S., E. Furlani Júnior, L. J. G. de Godoy, J. V. Ferrari, W. J. O. de Souza, e E. Alves. “<B&gt;Effects on Soil Chemical Attributes and Cotton Yield from Ammonium Sulfate and Cover Crops”. Acta Scientiarum. Agronomy, Vol. 37, nº 1, novembro de 2014, p. 75-83, doi:10.4025/actasciagron.v37i1.17972.