Abstract
AbstractThe soybean variety ‘Kent’ was planted at 19 sites representing two soil types located on Maryland's Eastern Peninsula. Routine soil tests including soil organic N were performed and correlated with serological distribution of R. japonicum. Nodule samples reacted with 16 Beltsville antisera with no serogroup occupying more than 20% of the total. Beltsville serogroup 110 was positively correlated with several organic N fractions, soil NH4+, and soil NO3‐ for the Sassafras soil. Serogroup 123 showed a positive correlation with soil pH and exchangeable Mg. When the Matapeake soil was considered, serogroup 94 was positively correlated with soil N status much like 110 was for the Sassafras soil.
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