GSL Sulfate of Potash — The Right Choice
As sure as the sun rises every day over the Great Salt Lake in Utah, GSL continues to produce the world's safest and most effective form of potassium — Sulfate of Potash (SOP) — naturally.

Utilizing a production process activated by solar evaporation, GSL removes valuable and naturally crystallized nutrients from two 20,000-acre ponds fed by the nutrient-rich brine of the Great Salt Lake. Powered by the rays of the sun, this solar-evaporation technique is unique to GSL and results in an incredibly pure dual nutrient that is high in K2O and low in chlorides. SOP from GSL is so safe and natural that it is listed as an approved source for potassium and sulfur by many organic grower organizations.

The unique characteristics of our SOP — low chloride content, low salt index, highly soluble, bonus source of sulfur — make this potassium source not only essential to agricultural crops, but to high-use turfgrasses and industrial applications, as well.

• Growing at GSL

• Production Process