Polymer Coated Potash (PCK)

Polymer Coated Potash (PCK) is a potassium chloride (MOP) granule that is coated with polymer to help reduce the loss of potassium from leeching. PCK can prolong the release of potassium into the soil over an extensive period of time. The thicker the polymer coating, the longer the potassium nutrients can release nitrogen into the soil.