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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
Tick the most suitable answer in question
In addition to the rock particles, the soil contains
Name the soil which is good for cultivation of sugarcane.
Name the soil which is acidic in nature.
State the characteristic of each of the soils named below that makes them most suitable for crop cultivation:
Black Soil
Give a geographical reason for each of the following:
Alluvial soil is extremely fertile.
Answer the following questions in about 30 words.
What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil.
Name the following:
Soil that is rich in iron oxide.
Which two types of Soils are the most important Soils?
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.
Which minerals are found in Regur Soil?
Name the important crops grown on it.
How is the Red Soil formed?
Mention any two advantages of the Black Soil.
Define ‘Leaching’? In which region South of the Tropic of Cancer, can one find Soil formed by ‘Leaching’?
Why is Red Soil ideal for dry farming?
State two differences between Khadar and Bhangar Soil.
Name the soil which
Makes up the delta of the River Ganga.
Give a single word for the following:
The loose rock material, together with humus, forming the uppermost layer of the earth’s crust and serving a source of food and moisture for plants.
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 three types of Alluvium Soil.
Name the parent rock of Laterite Soil. Name one area in India which has Laterite Soil.
Which Soil is found suitable to grow coffee in Karnataka?
What is the need and importance of soil testing from the point of view of farmers?
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?
The soil which contains a bigger-sized particle is ______.
How soil is formed?
Which one of the following soil is the best for cotton cultivation?
Which one of the following is responsible for sheet erosion?
Laterite soil is very useful for growing ______.
Soil formed by intense leaching is ______.
