Formation and function of the bean-rhizobium symbiosis in soy plants upon introduction of strains of Azotobacter and Bacillus species

The effects of bacteria belonging to the genera Azotobacter and Bacillus in a mixed culture with Bradyrhizobium japonicum strains on formation and function of the legume-rhizobium symbiosis of soybean plants were studied. The data showed that the bacterial compositions B. japonicum 634b + B. subtilis 5, B. japonicum 634b + A. chroococcum 20, and B. japonicum 10k + A. vinelandii 56 with a cell ratio of 1:0.1 increased the number and weight of root nodules as well as the height and weight of the aboveground plant parts in almost all the cases by 22-105% compared with the control variants. These binary microbial cultures may be used for development of combined bacterial preparations for soybean.     

Formation and Function of the Legume–Rhizobium Symbiosis of Soybean Plants while Introducing Bacterial Strains from the Genera Azotobacter and Bacillus

The effects of bacteria belonging to the genera Azotobacter and Bacillus in a mixed culture with Bradyrhizobium japonicumstrains on the formation and function of the legume–rhizobium symbiosis of soybean plants were studied. The data showed that the bacterial compositions B. japonicum 634b +B. subtilis 5, B. japonicum 634b + A. chroococcum 20, and B. japonicum 10k + A. vinelandii56 with a cell ratio of 1 : 0.1 increased the number and weight of root nodules as well as the height and weight of the aboveground plant parts in almost all cases by 22–105% compared with the control variants. These binary microbial cultures may be used for the development of combined bacterial preparations for soybean.