- Sulfonylurea Tolerance
Soybean products with the designation SR (sulfonylurea ready) in the product name contain a proprietary trait that enhances a soybean plant's natural tolerance to the sulfonylurea family of ALS inhibitor herbicides.Planting a soybean product capable of tolerating the residual effect of ALS herbicides used in wheat may allow for a shorter plant back time after wheat harvest, depending on label restrictions.ALS inhibitor herbicides work by inhibiting the ALS enzyme, which plays an important role in the production of several essential amino acids necessary to build proteins that are required for plant growth and development.