KURAYEMEN, C.; AGBER , P. I.; AMINU, A. ASSESSMENT OF SOIL MANAGEMENT PRACTICES ON SOIL PRODUCTIVITY USING RIQUIER PRODUCTIVITY INDEX MODEL IN MAKURDI, BENUE STATE, NIGERIA. Academic Journal of Current Research, [S. l.], v. 7, n. 4, p. 46–53, 2020. Disponível em: http://cirdjournals.com/index.php/ajcr/article/view/308. Acesso em: 31 may. 2026.