Potash is important for agriculture because it improves water retention, yield, nutrient value, taste, color, texture and disease resistance of food crops. It has wide application to fruit and vegetables, rice, wheat and other grains, sugar, corn, soybeans, palm oil and cotton, all of which benefit from the nutrient’s quality-enhancing properties.
Potash is a general term used to describe a variety of K-containing fertilisers used in agriculture. Potassium chloride (KCl) also frequently referred to as Muriate of Potash, or MOP, is the most commonly used potash fertiliser, with over 55 million tonnes being sold and used annually. It can be used to farm a variety of foods, particularly chloride-loving vegetables such as sugar beets, corn, celery and Swiss chard. It can be beneficial for soil that is low in chloride, building the plants’ disease resistance.
MOP is primarily used as a source of K nutrition.
Plants deficient in potassium can appear scorched on the leaves, be stunted in growth, and have less water circulation resulting in heat and drought susceptibility. They will also have poor resistance to pests and weak roots.
MOP may be blended with virtually all other fertiliser products.
Nutrient Source Specifics (No. 3), International Plant Nutrition Institute.