FALODUN, E.J. and EGHAREVBA, R. 2018. Influence of Poultry Manure Rates and Spacing on Growth, Yield, Nutrient Concentration, Uptake and Proximate Composition of Onion (Allium cepa L.). Notulae Scientia Biologicae. 10, 1 (Mar. 2018), 117–123. DOI:https://doi.org/10.15835/nsb10110230.