Alluvial soil has been deposited
by flowing rivers.
It generally consists of minute particles
of soil of various kinds mixed with salts and other minerals, and
contains animal and vegetable matters in a state of complete decay.
Old alluvium is called Bhangar. It
contains calcareous deposits locally known as 'Kankar'. Soil is not very
fertile. And hence not suitable for agriculture.
Newer alluvium is called Khadar. It contains
new alluvium. Used extensively for agriculture. Has no calcareous deposits.