Question

why are alluvial soils very fertile ?
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Answer 1

Answer:

Alluvial soil is extremely fertile- It is extremely fertile because it is formed by the sediments transported by rivers and is a mixture of sand, clay and silt. It has a loamy texture and it is rich in humus. It has good water retention and water absorbing capacity.

Answer 2

Answer:

Introduction:

Soil is the uppermost part of the earth's crust which contains organic matter and humus necessary for plant growth.

Alluvial Soil:1. Alluvial Soil is formed due

to deposition of silt and sand brought down by the rivers.

2. They are most important for agricultural because they are formed by the sediments brought down by rivers and are rich in chemical ingredients. 3. Alluvial soil is soft and fertile Because they are rich in potash and lime but deficient in nitrogen and phosphoric acid and humus.

4. They are suitable for growth of Rabi and Kharif crops.