Question

Write the characteristics of alluvial soil. ​

Answer 1

Answer:

Alluvial soil:-

• Alluvial soil is the most fertile soil.
• It it is most widely spread and most important soil in India.
• It has been deposited by three important Himalayan River systems called Indus River system, Ganga River system and Brahmaputra River system.
• The Northern plains are mainly made up of this soil.
• It has also been extended in Rajasthan and Gujarat by a narrow corridor.
• It is also find and eastern coastal plains particularly in the river deltas.
• It is formed by the deposit of sand and silt and consists of various proportion of clay too.
• It is coarse near the piedmont region.
• On the basis of size of the grains, we can classify alluvial soil into three types: Duars (big particles), Chos (medium) and terai (marshy land).
• Also, on the basis of the age of the soil we can classified into two types: Old Alluvial (Bangar)(It has high concentration of kankar nodules) and New Alluvial (Khadar)(It has fine particles and is more fertile than the other one).
• The Alluvial soil is rich in phosphoric acid, potash and lime.
• It is deficient in nitrogen.
• Because of it's fertility the plains are densely populated and intensively cultivated

Answer 2

Answer:

Major characteristics of alluvial soil are:

1. It is formed by the deposition of the river load as it flows from its upper to its lower course.

2. It is light and porous, therefore easily tillable.

3. It is a fertile soil as it is rich in minerals, especially potash and lime.

4. It is suitable for the growth of a large variety of rabi and kharif crops.

5. Soils in the drier areas are more alkaline.