Many Montana soils have adequate potassium. So why should I consider potash? Potash
commonly refers to potassium chloride. Chloride is also an essential plant nutrient for which
cereals have a particularly high requirement. Great Plains soils are typically low in chloride
unless potash has been applied. Past research has identified significant responses to
chloride fertilization. Some of the pioneering work on chloride nutrition occurred at Montana
State Univ. Are there areas of Montana that may also respond to potassium? The
presentation looks back at the chloride story and current potash needs.