Sul-Po-Mag brand of fertilizer, lang-beinite, potassium magnesium sulfate, and double sulfate of potash and magnesium all refer to the unique 3-in-1 combination of highly available sulfur, potassium and magnesium source. Present in the water-soluble sulfate form, these three plant nutrients are essential for plant growth and are vital to profitable crop production.

Sul-Po-Mag supplies three vital plant nutrients — potassium, magnesium and sulfur. It is easy to blend and helps balance soil fertility for improved profits.