Alluvial Soils:
These soils cover about 45.6% parts of the total geographical area of India. There are two
main areas of these soils :
(a) the great plains of the North, and
(b) the coastal plain, Besides, these soils are also found in the valleys and the deltas of
rivers.
These soils have been formed by deposition of the sediments brought by rivers. Thus,
they are azonal soils.
These soils lack in nitrogen phosphorus and humus however, they contain enough
potash and lime.