D. E. Simões Neto, A. C. de Oliveira, F. J. Freire, M. B. G. dos S. Freire, E. C. A. de Oliveira, and A. T. da Rocha, “Phosphorus fertilization for sugarcane in representative soils for cultivating this species in the Brazilian Northeast”, PAB, vol. 50, no. 1, pp. 73–81, Jan. 2015.