EFFIOM DO,  IREN OB, AMALU UC. NPK FERTILIZER EFFECT ON SOIL PROPERTIES AND YIELD OF PINEAPPLE (Ananas comosus L. (Merr.) IN CALABAR, SOUTHERN AGRO-ECOLOGICAL ZONE OF CROSS RIVER STATE. FAICBR. Published online March 16, 2026:202-208. Accessed June 15, 2026. https://jafe.net.ng/index.php/bookofproceedings/article/view/207