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. wujostec [Internet]. 2026 May 14 [cited 2026 Jun. 1];8(1). Available from: https://www.wujostec.com.ng/index.php/wujostec/article/view/79