del Valle-González, R. and Beale-Cosío, A. 1991. LACK OF RESPONSE OF PIGEON PEA (CAJANUS CAJAN L. HUTH) TO N AND K FERTILIZER ON A MOLLISOL OF PUERTO RICO’S SOUTHERN COASTAL PLAINS. The Journal of Agriculture of the University of Puerto Rico. 75, 1 (Jan. 1991), 89–92. DOI:https://doi.org/10.46429/jaupr.v75i1.3554.