entire northern plains are made up of alluvial soil. These have been deposited by three important HimalayaThe n river systems – the Indus, the Ganga and the Brahmaputra.
Alluvial soil is a very fertile soil. Mostly these soils contain an adequate proportion of potash, phosphoric acid and lime which are ideal for growth of sugarcane, paddy, wheat, and other cereal and pulse crops.
Due to its high fertility, regions of alluvial soils are intensively cultivated and densely populated. Soil in drier areas is more alkaline and can be productive after treatment and irrigation.
Final Answer:
Alluvial soil is a very fertile soil. Mostly these soils contain an adequate proportion of potash, phosphoric acid and lime which are ideal for growth of sugarcane, paddy, wheat, and other cereal and pulse crops.