Grain proximate compositions of two sorghum (Sorghum bicolor Moench (L.) ) varieties as affected by Cow dung and inorganic Nitrogen Fertilizer in northern Guinea savanna ecological zone. Wudil Journal of Science and Technology Education, [S. l.], v. 8, n. 1, 2026. Disponível em: https://www.wujostec.com.ng/index.php/wujostec/article/view/79. Acesso em: 1 jun. 2026.