A Threat to Quality
Avoiding Chloride Issues
Because onions are sensitive to chloride, it is important to use a potassium source that doesn't add to the chloride and salinity levels of the soil. Excess salts and chloride can build in the soil causing root damage and limiting key nutrient uptake. Protassium+ is virtually chloride-free and has the lowest salt index of all the major potash fertilizers. Protassium+ won't create or contribute to a salinity or chloride problem.
Put your trust in the premium K source that brings more to the table for your onions and your bottom line: Protassium+.