Soils are of various types depending on various chemicals present.Sodic soils are characterized by a disproportionately high concentration of Sodium (Na) in their cation exchange complex. They are usually defined as consisting an exchangeable Sodium percentage greater than 15%. These soils tend to occur within arid to semi-arid regions and are innately unstable, exhibiting poor physical and chemical properties, which impede water infiltration, water availability, and ultimately plant growth.
Sodic is an adjective of the noun Sodium, a chemical element belonging to the alkali metal group.
Sodic soil or soil sodicity may refer to: