After reading this article you will learn about the nature and sources of soluble salts found in soil. Nature of Soluble Salts: Soluble salts, as referred to in soil science, are those inorganic chemicals that are more soluble than gypsum (CaSO4.2H2O), which has a solubility of 0.241 gm. per 100 ml of water at 0°C. […]