Alluvial soil is the largest soil group in India. Alluvial soil is formed by the deposition of silt by the Indo-Gangetic-Brahmaputra rivers. This soil group covers around 46% of the total land area. It supports nearly half of the Indian population by providing the most productive agricultural lands. It contains adequate amount of potash, alkalies and phosphoric acid. The soil is most suitable for crops such as rice, sugarcane, wheat, tobacco, maize, fruits, vegetables and jute.