Nitrogen fixing effectiveness of selected Bradyrhizobium spp. strains to mungbean, Vigna radiata L. for better quantity and quality of grain and shoot dry matter was investigated in field conditions in two soil types with the aim of introducing of mungbean as a new crop in Republic of Serbia. Seed inoculation was done with four active strains both individually and in combination with fertilization of 20 kg N ha-1. Quantity and quality of yield of grain and shoot dry matter was higher in Fluvisol than in Humofluvisol. On the both soil types, seed inoculation with and without 20 kg N ha-1 produced significantly higher grain yield (11-59%) and shoot dry weight (13-48%) as well as total N content and protein yield in respect to untreated control (Ø). The strains, soil types, mineral N and their interaction significantly influenced shoot dry matter and grain yield. According to high quantity and quality of grain and shoot dry matter yield, application of B. japonicum strain 542 in combination with 20 kg N ha-1 could replace fertilization of 40 kg N ha-1 and would be applied in production of mungbean.