Organic Sulfate of Potash | Protassium+®


Premium Potassium Source for Organic Production

Not all potash meets the USDA National Organic Program standards and requirements for organic food production. And only one brand of sulfate of potash has been used in organic farming in the United States for more than 30 years.

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Approved for Organic Use

OMRI & CDFA Certified

We offer a complete line of  Protassium+ sulfate of potash products for organic production that have passed the National Organic Standards review process and are certified and approved for organic food production by both the Organic Materials Review Institute (OMRI) and the California Department of Food & Agriculture (CDFA).


Earth Smart

Naturally Produced

Protassium+ products are produced through a solar evaporation process. Water from the Great Salt Lake is drawn into specially built ponds and then removed by solar evaporation, leaving sulfate of potash and other minerals for harvest. The process is environmentally friendly because it:

  • Utilizes all natural solar evaporation
  • Generates no toxic waste
  • Safely returns water to the Great Salt Lake

Quality & Convenience

A Variety of Organic Choices

Protassium+  sulfate of potash is available in several formulations and a variety of sizes, including bag, tote, and bulk amounts to better satisfy your specific fertilizer needs for organic farming.