Growth yield of denitrifiers using nitrous oxide as a terminal electron acceptorG. U. Okereke · 1993

Prevalence of nitrous oxide reducing capacity in denitrifiers from a variety of habitatsG. U. Okereke · 1984

Nodulation and biological nitrogen fixation of 80 soybean cultivars in symbiosis with indigenous rhizobiaG. U. Okereke; D. Unaegbu · 1992

Crop storage losses in southern Nigeria caused by the activities of micro-organismsG. U. Okereke; V. C. Nwosu · 1987

Short communication: Screening of native and foreignBradyrhizobium japonicumstrains for high N2fixation in soybeanG. U. Okereke; C. C. Onochie · 1996

Effectiveness of foreign bradyrhizobia strains in enhancing nodulation, dry matter and seed yield of soybean (Glycine max L.) cultivars in NigeriaG. U. Okereke; C. Onochie; A. Onunkwo; E. Onyeagba · 2001

[WORLD SCIENTIFIC Proceedings of the II International Conference on Environmental, Industrial and Applied Microbiology (BioMicroWorld2007) - University of Seville, Spain (28 November – 1 December 2007)] Current Research Topics in Applied Microbiology and Microbial Biotechnology - Effect of water dilution and nutrient supplements (wood ash, urea and poultry droppings) on biogas production from brewers spent grainOnwosi, C. O.; Okereke, G. U.