EFFIOM, D. O.;  IREN, O. B.; AMALU, U. C. NPK FERTILIZER EFFECT ON SOIL PROPERTIES AND YIELD OF PINEAPPLE (Ananas comosus L. (Merr.) IN CALABAR, SOUTHERN AGRO-ECOLOGICAL ZONE OF CROSS RIVER STATE. Faculty of Agriculture International Conference Book of Proceedings, Nigeria, p. 202–208, 2026. Disponível em: https://jafe.net.ng/index.php/bookofproceedings/article/view/207. Acesso em: 17 jun. 2026.