pHusion KMS 0-0-12 supplies four vital nutrients critical for proper soil chemistry — potassium, calcium, magnesium and sulfur. When soils are deficient in these nutrients, other primary and secondary nutrients can become unavailable which prevents the plant from efficiently utilizing the nutrients within in the soil. pHusion KMS 0-0-12 contains pHusion Organic Acid which aids in releasing tied up nutrient complexes. In turn, these nutrients become available to the plant.