“  YIELD PERFORMANCE OF COWPEA VARIETIES (Vigna Unguiculata (L.) Walp) UNDER VARYING PLANT POPULATIONS AND PHOSPHORUS FERTILIZER RATES IN NIGERIAN SAVANNA ZONE”. FUDMA Journal of Agriculture and Agricultural Technology 12, no. 1 (June 9, 2026): 144–154. Accessed June 13, 2026. https://jaat.fudutsinma.edu.ng/index.php/jaat/article/view/529.