June 1, 2020 | By Rupp Seeds
Nitrogen fixation begins in soybean root nodules between the V2 and V3 growth stages, and inoculation can help increase root nodulations in fields newly seeded to soybeans. Adequate populations of nitrogen fixing bacteria (Bradyrhizobia japonicum) are necessary for successful atmospheric N fixation to occur. These bacteria should either be available in the soil or applied to soybean seed to help nodules form on the roots.
Read more to learn about how nodules develop, how to assess their viability, and when inoculants are most important in this issue of SeedScoop.
Soybean Nodulation Process