What are different between rea and …

<div style="position: absolute; left: -99999px;">Alluvial soil- It is a loose form of soil that consists of sediments made up of eroded rock material. Silt, clay, sand and gravel are some of the constituents of alluvial soil. It is very fertile in nature and suitable for agriculture, particularly crops like rice. Black soil- It consists of large amount of clay and humus and is formed from basic rocks like basalt and in places of lava deposits. This type of soil is suitable for cotton cultivation. In India, it is found in the Deccan Plateau region.

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Black soil :- Important characteristics of black soils are:
a. These soils are black in colour and are also known as regur soils. Black soil is ideal for growing cotton and is also known as black cotton soil.
b. It is believed that climatic conditions along with the parent rock material are the important factors for the formation of black soil.
c. The black soils are made up of extremely fine i.e. clayey material.
d. They are well-known for their capacity to hold moisture.
e. In addition, they are rich in soil nutrients, such as calcium carbonate, magnesium, potash and lime. These soils are generally poor in phosphoric contents.
f. They develop deep cracks during hot weather, which helps in the proper aeration of the soil.
g. These soils are sticky when wet and difficult to work on unless tilled immediately after the first shower or during the pre-monsoon period.
Red soil :-
a. Red soil develops on crystalline igneous rocks in areas of low rainfall.
b. These soils develop a reddish colour due to diffusion of iron in crystalline and metamorphic rocks.
c. It looks yellow when it occurs in a hydrated form.