Akinmutimi ALA, Anyanwu CC. Effects Of Biochar And Npk Fertilizer On Soil Chemical Properties, Growth And Yield Of Cucumber (Cucumissativus) In An Ultisol, Southeastern Nigeria. JAFE. 2025;8(1):20-34. Accessed April 19, 2025. https://jafe.net.ng/index.php/home/article/view/96