Question

Which element is responsible for causing soil salinity? At what concentration does the soil become saline?

Answer 1

Soil salinity is the salt content in the soil, which is caused by improper irrigation. The process of increasing salt content is termed salinisation. Causes of Soil Salinity The high salt concentration of soil is caused by improper irrigation method from a salt-laden water table. When salt concentration in soil increased then it gets accumulated due to evaporation. Human activities like fertilising crop are also responsible for the salinity of soil. As fertiliser contain potassium, which can form a naturally occurring salt-sylvite. The salinity of soil degrades soil and vegetation. Normally the pH value of soil comprises between 2.2 − 9.7, while above which the soil is degraded by salt content.