Relation between Soil Salinity and Productivity of the Agricultural Plants

In the conditions of Shirvan steppe the influence of soil salinity on the cotton productivity was studied. It was determined that the cotton growth shortens, the size and weight of the cotton-bolls decrease, and the productivity reduces when the salt quantity in the soils increases. Accounting the influence of the salt quantity and salt composition on the productivity of the agricultural plants a new classification was offered for the soils of sulphatic type of salinity.