Mas-ud Mustapha; Imoro Surazu; Ahmed Seidu. Potassium Uptake As Influenced by Neem (Azadirachta Indica L.) Cake, Neem Oil and NPK on Grain Yield of Maize (Zea Mays L.) in Guinea Savannah Zone of Ghana. ASRJETS-Journal 2023, 96, 123-138.