Bello, W.B., Olla, N.O., Abdul Azeez, S. A. Effect of NPK fertilizer, Poultry manure, compost and their integration under different methods of application on Maize yield . JAESR. 2024;5(1). Accessed October 5, 2025. https://hummingbirdjournals.com/jaesr/article/view/171