Muriate of Potash - Potassium Chloride, is the most commonly used potassium fertiliser worldwide. It contains a high concentration of quick-release potassium which encourages vigorous plant growth and increases resistance against disease. Muriate of Potash promotes strong root growth, increases stem strength and flower and fruit quality for all plant types. The chloride content of Muriate of Potash aids disease resistance and increases the yield of flower and fruit plants. The addition of extra chloride can on rare occasions cause toxicity in very dry environments, however, this is unlikely to be a problem as chloride is readily removed from the soil by leaching.