Potash example sentences

are some examples; chemically formed — chert, limestone, halite, potash etc.Some examples of fertilisers are— urea, ammonium sulphate, super phosphate, potash, NPK (Nitrogen, Phosphorus, Potassium).In addition, they are rich in soil nutrients, such as calcium carbonate, magnesium, potash and lime.Mostly these soils contain adequate proportion of potash, phosphoric acid and lime which are ideal for the growth of sugarcane, paddy, wheat and other cereal and pulse crops.Another group of sedimentary minerals include gypsum, potash salt and sodium salt.