[1]
Pérez-Escolar, R. 1977. Effect of Soil pH and Related Acidity Factors on Yields of Sweetpotatoes and Soybeans Grown on Typical Soils of the Humid Tropics. The Journal of Agriculture of the University of Puerto Rico. 61, 1 (Jan. 1977), 82–89. DOI:https://doi.org/10.46429/jaupr.v61i1.10482.