Almeida, D. L. de; Castro, J. A. B. de; Penteado, A. de F.; Granato, S. de S. Corn Fertilization Based on Soil Testing – An Economic Evaluation. PAB 2014, 12 (1), 1-10. https://doi.org/10.1590/S1678-3921.pab1977.v12.16766.