2) Soil salinity has become a major problem in recent times.This has rendered a huge tract of soil unfit for use. What are the reasons for soil salinity in India? What steps can be taken to improve the soil quality?

Protected: 2) Soil salinity has become a major problem in recent times.This has rendered a huge tract of soil unfit for use. What are the reasons for soil salinity in India? What steps can be taken to improve the soil quality?