Poultry Manure Rate for Pot-Plant Bitter Leaf (Vernonia amygdalina Del.) Production in a Humid Rainforest Zone of Nigeria. Agr. Foo. Nat. Res. J. [Internet]. 2022 Dec. 1 [cited 2026 Sep. 11];1(1):25-30. Available from: https://journals.unizik.edu.ng/afnrj/article/view/8751