EN
The objective of this investigations was to verify whether the co-inokulation of maize seedlings with a strain of Rhizobium leguminosarum in combination with the bacteria from the Azospirillum genus can stimulate the development of this plants more than the inoculation of these seedlings only with Azospirillum bacteria. The obtained results indicate a distinctly higher effectiveness of the combined inoculation of maize seedlings as expressed by bacterial counts, nitrogenase activity and weight of plant shoots in comparison with the inoculation only with the bacterial strain from the Azospirillum genus. The increased effectiveness was distinct in the case of the Rhizobium leguminosarum with Azospirillum lipoferum combination.