Question

explain the features of alluvial soil?​

Answer 1

Answer:

this soil mainly divides in two types 1st one is bangar and khandar and khandar is more fertile than bangar

Answer 2

Heya mate!✌️☺️

$</h2><p>{\huge{\bf{\pink{\boxed{\boxed{Your Answer}}}}}}$

➡️... Alluvial Soils

• 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.
• Rocks of the Himalayas form the parent material. Thus the parent material of these soils is of transported origin.
• They are the largest soil group covering about 15 lakh sq km or about 46 per cent of the total area.
• They support more than 40% of the India’s population by providing the most productive agricultural lands.

Characteristics of Alluvial Soils

• They are immature and have weak profiles due to their recent origin.
• Most of the soil is Sandy and clayey soils are not uncommon.
• Pebbly and gravelly soils are rare. Kankar (calcareous concretions) beds are present in some regions along the river terraces.
• The soil is porous because of its loamy (equal proportion of sand and clay) nature.
• Porosity and texture provide good drainage and other conditions favorable for agriculture.
• These soils are constantly replenished by the recurrent floods.

Chemical properties of Alluvial Soils

• The proportion of nitrogen is generally low.
• The proportion of Potash, phosphoric acid and alkalies are adequate.
• The proportion of Iron oxide and lime vary within a wide range.

Distribution of Alluvial Soils in India

• They occur all along the Indo-Gangetic-Brahmaputra plains except in few places where the top layer is covered by desert sand.
• They also occur in deltas of the Mahanadi, the Godavari, the Krishna and the Cauvery, where they are called deltaic alluvium (coastal alluvium)
• Some alluvial soils are found in the Narmada, Tapi valleys and Northern parts of Gujarat.

Crops in Alluvial Soils

• They are mostly flat and regular soils and are best suited for agriculture.
• They are best suited to irrigation and respond well to canal and well/tube-well irrigation.
• They yield splendid crops of rice, wheat, sugarcane, tobacco, cotton, jute, maize, oilseeds, vegetables and fruits.
• Geological divisions of alluvial soils
• Geologically, the alluvium of the Great plain of India is divided into newer or younger khadar and older bhangar soils.⬅️

$<marquee>Thnku!❤️</marquee>$