This project is part of a multi-state effort examining the effects of mineral nutrition on the incidence and severity of soybean diseases, including Asian rust. Several elements, including soil-applied potassium chloride (KCl), foliar manganese (Mn), foliar copper (Cu), and foliar boron (B), are being studied to see how they compare or interact with a fungicide treatment. Fungicide applications are the most commonly-used approach to combatting Asian rust.