Potassium Chloride is huge in the world of agriculture. In general, the world as well. Potassium chloride is a vital ingredient in a certain type of fertilizer that is called potash. The potassium chloride in potash represents 96% of the ingredients. Potassium chloride functions the exact same way in fertilizer as it does in our bodies. KCL is the majority ingredient in fertilizer because it only serves to help the growth of plants and provide them with adequate potassium levels. The international agriculture community relies heavily on potassium chloride to ensure healthy and profitable crops and therefore potassium chloride takes its place to help drive the world economy.