USMAN, M.; IBRAHIM, F.; OYETOLA, S. O. Sustainable Agriculture in Relation to Problems of Soil Degradation and How to Amend Such Soils for Optimum Crop Production in Nigeria. International Journal For Research In Agricultural And Food Science, [S. l.], v. 4, n. 1, p. 01–17, 2018. Disponível em: https://afs.gpubjournal.com/index.php/afs/article/view/329. Acesso em: 6 dec. 2025.