Question

Difference between alluvial soil and red soil

Answer 1

alluvial soil is rich in humus but deficient in nitrogen and potash. It is loamy, consisting of firtile slit deposited by the river flow.
red soil is rich in iron content and is formed by the weathering of ancient crystalline and metaphorus rocks. It is porus and friable in nature..

Answer 2

Alluvial soils are highly fertile soils found mostly along the river basins and support a great variety of crops both kharif and rabi.
Red soils are heavily leached soils and hence leave behind good amount of iron in the upper layer of soil profile.