Soybean associated to inoculation and co-inoculation of Bradyrhizobium and Azospirillum after autumn-winter crops

The objective of this study was to evaluate the development and productivity components of soy with and without inoculation of Bradyrhizobium japonicum and the co-inoculation of B. japonicum and Azospirillum brasilense after autumn-winter crops. The experimental design was in randomized blocks, with subdivided plots. The main plots were autumn-winter crops (Cowpea, Brachiaria ruziziensis, single corn and corn intercropping with B. ruziziensis), and in the subplots BRS 360 RR cultivar, without inoculation (BRS 360-0), inoculated with B. japonicum (BRS 360-CB) and co-inoculation with B. japonicum + A. brasilense (BRS 360-CB+ A), in four replicates. The data were submitted to analysis and the means were compared by the Tukey test (p < 0.05). There was no difference in the yield of green plants and number of grains per plant. The soy no-inoculated after single corn showed higher yield (2,573 kg ha(-1)) with increases in leaf area index (5.4 m(2)); and corn intercropping with B. ruziziensis (2,511 kg ha(-1)) were observed to be higher when B. japonicum was inoculated with B. japonicum and A. brasilense. Autumn-winter crops with corn provide higher crop productivity inoculated not.