Effect of Integrating Poultry Manure and Inorganic NP Fertilizers on Growth, Yield and Yield Component of Maize (Zea mays L.) at Ambo, Ethiopia. J. sci. sustain. dev. [Internet]. 2016 Jul. 5 [cited 2026 Oct. 28];4(2):69-86. Available from: https://ojs-dev.ethernet.edu.et/index.php/jssd/article/view/61