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प्रश्न
What are black soils? Describe their formation and characteristics.
उत्तर
Black soils are formed by volcanoes. These soils are also known as the ‘Regur Soil’ or the ‘Black Cotton Soil’.
Features: The black soils are generally clayey, deep, and impermeable. They swell and become sticky when wet and shrink when dried. So, during the dry season, this soil develops wide cracks.
Thus, there occurs a kind of ‘self ploughing’. Because of this character of slow absorption and loss of moisture, the black soil retains the moisture for a very long time, which helps the crops, especially; the rain-fed ones, to sustain even during the dry season.
Chemical Composition: Chemically, the black soils are rich in lime, iron, magnesia, and alumina. They also contain potash. But they lack phosphorous, nitrogen, and organic matter. The colour of the soil ranges from deep black to grey.
Areas: Black soil covers most of the Deccan Plateau which includes parts of Maharashtra, Madhya Pradesh, Gujarat, Andhra Pradesh, and some parts of Tamil Nadu. In the upper reaches of the Godavari and the Krishna, and the northwestern part of the Deccan Plateau, the black soil is very deep.
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संबंधित प्रश्न
Tick the most suitable answer in question
In addition to the rock particles, the soil contains
Why does alluvial soil differ in texture?
With reference to black soil answer the following:
Name one important crop which grows in this soil.
Mention two similarities between red soil and laterite soil.
Giver a geographical reason for the each of the following:
Alluvial soil differs in texture.
State the characteristic of each of the soils named below that makes them most suitable for crop cultivation:
Black Soil
State the geographical term for each of the following processes:
The process by which rainwater, flowing in a definite path, removes the topsoil, thus causing deep cuts to the surface of the land.
Give the geographical reason for black soil being suitable for growth of cotton.
State two differences between Bhangar and Khadar soil.
Name the process by which Laterite soil is formed. Mention one disadvantage of this soil.
Give a geographical reason for each of the following:
Dry farming is preferred in areas with red soil.
name two states of India where this type of soil is found.
What do you understand by Humus?
Name the Soil known for its self-ploughing quality and the capacity to hold moisture. Name any two cash crops for which it is specially suited.
How is Soil formed?
Explain the origin of the Black Soil. Name two States in India, which have Black Soil.
Mention any two advantages of the Black Soil.
How is Red Soil formed?
Define ‘Leaching’? In which region South of the Tropic of Cancer, can one find Soil formed by ‘Leaching’?
Why are Alluvial Soil agriculturally important?
Alluvial soil of the northern plains and the alluvial soil on the coastal plains of India.
Name the three types of Alluvium Soil.
Which one of the following term is used to identify the old and new alluvial respectively?
Which type of soil develops due to high temperature and evaporation?
