Chapter : 1. Resource & Development

Alluvial soil

1. Alluvial soil :
Formation : Most of the soil are derived from the sediments deposited by rivers as in the Indo-Gangetic plain. It consists of sand silt and clay.
Features :
1. This is the most wide spread soil in India.
2. It is the most fertile soil.
3. Due to high fertility, they are intensively cultivated and are densely populated.
4. They are very fine grained, rich in potash and phosphoric acid but deficient in nitrogen and humus.
5. According to age alluvial soil is classified into :
(A) Old alluvial or Bhangar
(B) New Alluvial or Khadar

Crops : Rice, Wheat, Sugarcane, Tobacco, Jute, Fruits and Vegetables.
Regions : Extends over Northern plains, small parts of Rajasthan & Gujarat, Eastern Coastal plains particularly deltas of Mahanadi, Godavari, Krishna & Kaveri.

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