Salination of Soil

Increase in salt concentration of soil affects soil productivity and degrades its quality. Inadequate drainage especially in flood ravaged and well irrigated areas leads to accumulation of salt at the soil surface. During summer season salts from lower layers move up by capillary action and get aggravated on soil surface. In India intensive farming with poor drainage has increased soil salinity.

Total saline land in our country-6 million hectares. In Punjab, 6000-8000 hectares.
Nearly 1/6th of arid and semi-arid lands of the world have high salinity.