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प्रश्न
What are black soils? Describe their formation and characteristics.
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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.
संबंधित प्रश्न
Give one geographical reason for each of the following:
Red soil requires irrigation.
Name the soil which is good for cultivation of sugarcane.
Giver a geographical reason for the each of the following:
Alluvial soil differs in texture.
Name the following:
Soil that is rich in iron oxide.
name two states of India where this type of soil is found.
Which subject deals with the study of Soil?
What do you mean by ‘Soil’?
Mention the types of Soils found in India.
Or
Name the four major Soil types found in India, leaving out desert and mountain Soils.
Or
Name four major groups of Soil found in the Indian Plains and Plateaus.
Which two types of Soils are the most important Soils?
What is meant by ‘in Situ’?
Which minerals are found in Regur Soil?
How we define Soil from agricultural point of view?
How is Alluvial soil formed? Why is this soil agriculturally important?
What is Black Soil?
Where is Red Soil found?
Why Black Soils are also called ‘Black Cotton Soil’?
State two differences between Black soil and Alluvial soil.
Alluvial soil and red soil.
Give a single word for the following:
The process of percolation by which valuable mineral nutrients are washed down from the top layer of the Soil only to deposit them in the lower layers, making the top Soil infertile.
Name the parent rock of Laterite Soil. Name one area in India which has Laterite Soil.
What are the various uses of soil?
Give information on:
Measures of soil conservation.
Maharashtra -Types and Overall Distribution of Soil
Observe the map given above and answer the following questions:
- Which soil occupies most of the area in Maharashtra?
- In which areas are laterite soils found?
- Which soil is found in the river valleys of Maharashtra?
- Which soil is found in parts of the Sahyadri ranges?
- In which region is alluvial soil found?
Which one of the following soil is the best for cotton cultivation?
Laterite soil is very useful for growing ______.
What is the difference between Khadar and Bhangar?
