This is a 1 Ton Super Sac of SOP shipped direct from the manufacturer.
Potassium Sulfate Granular Great Salt Lake Brand (SOP) (0-0-50-Sulfur 17%) - A naturally mined product.
Rates: This rate can vary from 1 to 10 lbs per 1000 sq. ft. It is best to apply according to your soil test. For lower application rates you can mix it into a fertilizer to get a more even distribution.