2025. EFFECTS OF NPK 15:15:15 FERTILIER AND SPACING ON THE Physiological Parameters OF OKRO (Abelmoschus esculentus L.) AT DUTSE, JIGAWA STATE. FUDMA Journal of Agriculture and Agricultural Technology. 10, 4 (May 2025), 108–112. DOI:https://doi.org/10.33003/jaat.2024.1004.15.393.