Optimizing Soybean Yield in the Sub-humid Savanna of Nigeria: A Study on Poultry Manure and Phosphorus Fertilizer Effects. Frontiers of Agriculture and Food Technology, [S. l.], v. 14, n. 1, p. 61–67, 2024. Disponível em: https://kevinpage.org/index.php/FAFT/article/view/1362. Acesso em: 28 oct. 2026.