The number of biological soybean seed treatments are numerous. Products are typically a fungi, amino acid, bacteria, or combination thereof applied (on seed, in-furrow, or broadcast over the crop) with the hopes of eliciting a yield response. As with any researched products, results can vary significantly, as evidenced in a recent field report from the University of Wisconsin.
Shawn Conley is the University of Wisconsin State Soybean Extension Specialist and part of a multi-state team looking at biological seed treatments in soybeans. His study consisted of evaluation of nine products at 10 sites in Wisconsin during the 2023 growing season. All seeds were pretreated with a common fungicide/insecticide seed treatment with biological treatments then applied according to product label on top of the base seed treatment. Plant populations were done at the V2 growth stage and yield data was collected at harvest.
