G. U. Okereke

Microbial conversion of agricultural wastes as a source of energy for developing countries: a case study in Nigeria.

C. Ejike, G. U. Okereke, K. A. Malik, 1991 .

Selection of the most appropriate reference crop for the assessment of nitrogen fixation by soya bean in Anambra state, Nigeria

G. U. Okereke, D. Dauda, D. Ayama, 1991 .

Growth yield of denitrifiers using nitrous oxide as a terminal electron acceptor

G. U. Okereke, 1993, World journal of microbiology & biotechnology.

Response of introduced Bradyrhizobium strains infectinga promiscuous soybean cultivar

G. U. Okereke, C. Onochie, G. Ekejindu, 2000 .

Effectiveness of foreign bradyrhizobia strains in enhancing nodulation, dry matter and seed yield of soybean (Glycine max L.) cultivars in Nigeria

G. U. Okereke, C. Onochie, E. Onyeagba, 2001, Biology and Fertility of Soils.

Nodulation and biological nitrogen fixation of 80 soybean cultivars in symbiosis with indigenous rhizobia

G. U. Okereke, D. Unaegbu, 1992, World journal of microbiology & biotechnology.

IMMEDIATE IMMOBILIZATION OF LABELED AMMONIUM SULFATE AND UREA NITROGEN IN SOILS

G. U. Okereke, V. Meints, 1985 .