YIELD PERFORMANCE OF COWPEA VARIETIES (Vigna unguiculata (L.) Walp) UNDER VARYING PLANT POPULATIONS AND PHOSPHORUS FERTILIZER RATES IN NIGERIAN SAVANNA ZONE. FUDMAJAAT [Internet]. 2026 Jun. 9 [cited 2026 Jun. 13];12(1):144-5. Available from: https://jaat.fudutsinma.edu.ng/index.php/jaat/article/view/529