Pérez-Escolar, R. and Lugo-López, M.A. 1978. Effect of Depth of Lime Application on Yield of Two Corn Hybrids Grown on a Typical Ultisol of Puerto Rico. The Journal of Agriculture of the University of Puerto Rico. 62, 3 (Jul. 1978), 203–213. DOI:https://doi.org/10.46429/jaupr.v62i3.10357.