Bradyrhizobium and azospirllum interaction in soybean cultivars (Glycine Max (l.) Merrill) and their effects on productivity

Brazil is a major producer of soybeans and a model in the use of biological nitrogen fixation, however, few authors are investigating the use of more than one genus of bacteria acting alone and / or together. An example is the use of the diazotrophic bacteria of the genus Bradyrhizobium and Azospirillum, the latter besides the fixation presents growth promoting function. Thus, the objective of this bibliographic review and to verify the influence on the productive performance Bradyrhizobium japonicum and Azospirillum brasilense, in the soybean crop.