Alluvial soil is a mixture of sand, silt, clay.
- Alluvial soils are formed mainly due to silt deposited by Indo-Gangetic-Brahmaputra rivers. In coastal regions, some alluvial deposits are formed due to wave action.
- The soil is porous because of its loamy (equal proportion of sand and clay) nature.
- They are the largest soil group covering about 15 lakh sq km or about 46 per cent of the total area.
- They yield splendid rice, wheat, sugarcane, tobacco, cotton, jute, maize, oilseeds, vegetables and fruits.
- They are best suited to irrigation and respond well to the canal and well/tube-well irrigation.