“EFFECTS OF NPK FERTILIZER AND SPACING ON THE GROWTH PARAMETERS OF OKRO (Abelmoschus Esculentus L.)”. FUDMA JOURNAL OF SCIENCES 6, no. 2 (June 11, 2022): 200–202. Accessed September 17, 2025. http://162.254.38.185/index.php/fjs/article/view/953.