It is our pleasure to inform you that as of Jan 1, 2010, GSLM began marketing our OMRI listed sulphate of potash (SOP) products under the brand name, "organic K+."
GSLM's sulfate of potash has been accepted for use in organic farming in the United States for more than 30 years. It is used by itself as a potash fertilizer and as an ingredient in many formulated brands of organic fertilizers.
The Organic Materials Review Institute (OMRI) reviews and lists products that are approved for use in certified organic production, handling, and food processing. Here are the OMRI certifications for each GSL product.
The OMRI Certificates are in PDF Format (Adobe Acrobat Reader Required)