Trio is a naturally mined crystalline mineral that supplies three vital plant nutrients- potassium, magnesium, and sulfur- all in water soluble sulfate form. Its neutral pH does not alter soil acidity and its maximum chlorine content is less than 3.0 percent, minimizing the potential for fertilizer “burn”. It is widely used on sensitive vegetable and food crops that require high fertilization rates but do not tolerate high levels of chlorine or soluble salts. Trio is an excellent source of readily available sulfur, potassium and magnesium.   

Guaranteed Analysis

Soluble Potash (K2O)………….22.00%

Magnesium (Mg)……………….11.00%

Sulfur (S)…………………………22.00%

Chlorine (Cl) Max………………...3.00%