After Nitrogen and Phosphorus, Potash is the only major nutrient required by all crops. Potash (K) is the only essential plant nutrient which selflessly works for plant growth, it enhances the ability of plants to resist disease and pest attack, cold and other adverse conditions. Potash is essential for formation of starch, in production and translocation of sugars, and is thus of special value for sugarcane, potato, beet root. It improves equality of tobacco, citrus and other fruits, makes grain of cereals plumpy and straw strong. Potash corrects the ill effects of excess of nitrogen. Plants fail to absorb potash even if large quantity is available in the soil as it is in insoluble form.