I.D, Edem; O.EDEM, Stephen; J IJAH, Christiana. Relationship of Landscape Positions with Soil Properties on Maize Yield in Ultisol. American Journal of Agricultural Science, Engineering, and Technology, [S. l.], v. 2, n. 1, p. 21–40, 2018. DOI: 10.54536/ajaset.v2i1.29. Disponível em: https://journals.e-palli.com/home/index.php/ajaset/article/view/29. Acesso em: 16 apr. 2026.