EZEAKU, Peter Ikemefuna; IFEYINWA, Onyeishi; VICTOR, Ezeaku. LAND DEGRADATION IN THREE LOCATIONS AND SAMPLING PERIODS IN PHYSIOGRAPHIC UNITS UNDER ARABLE CROP PRODUCTION IN SUB- HUMID TROPICS OF NIGERIA. International Journal of Agricultural and Natural Sciences, [S. l.], v. 13, n. 2, p. 62–82, 2020. Disponível em: https://ijans.org/index.php/ijans/article/view/497. Acesso em: 12 oct. 2025.