Soybean yield response to <i>Bradyrhizobium</i> inoculation on southeastern coastal plain soils

Biological nitrogen fixation (BNF) in soybean [Glycine max (L.) Merr.] is an important process to supply (N) for the crop. However, N capacity of varies widely among soils and climatic conditions. The potential purportedly minimum that do not have any prior history cultivation, application inoculum reported as necessary facilitate this process. Rhizobium inocula can be applied at planting promote BNF; however, their efficacy remains highly variable. A field experiment was conducted irrigated dryland sites 2017 2018, where cultivated preceding 10+ years. Bradyrhizobium liquid, dry, a combination liquid dry formulations. results showed addition, formulation or combination, did significantly increase yield compared with untreated control site. This study consistently fields without previous crop rotation Future research needed identify soils, varieties, management practices, environmental conditions inoculation which net farm profits.