What are the characteristic of Alluvial soil

Alluvial soil is considered the most fertile soil ...

Alluvial soil contains sand, silt and clay.

According to age, the alluvial soil is classified as Bangar (old alluvial) and Khadar (new alluvial).

Alluvial soil contains an ample amount of potash, phosphoric acid and lime.

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

(Answer was from google)