Question
Download Solution PDFWhich of the following soil types is also known as 'Usara Soils'?
This question was previously asked in
OSSC TGT Official Paper (Held On: 11 Mar, 2023 Shift 3)
Answer (Detailed Solution Below)
Option 1 : Saline Soils
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OSSC TGT: Full Test 1
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Detailed Solution
Download Solution PDFThe correct answer is Saline Soils.
Key Points
- Saline soils are also known as 'Usara soils' in India.
- These soils contain a high amount of soluble salts, primarily sodium chloride and other chlorides and sulfates.
- Saline soils are typically found in arid and semi-arid regions where evaporation exceeds precipitation.
- These soils are characterized by white crusts on the surface due to salt accumulation.
Important Points
- Saline soils require special management practices such as leaching, gypsum application, and proper irrigation to improve their fertility and productivity.
- The presence of excessive salts in saline soils can adversely affect plant growth by causing osmotic stress and nutrient imbalances.
- Saline soils are often found in regions with poor drainage and high water table levels.
- Reclamation of saline soils involves the removal of excess salts through improved drainage and soil amendments.
Additional Information
- Laterite Soils
- Laterite soils are rich in iron and aluminum, formed in hot and wet tropical areas.
- They are typically red or yellow in color and are used for building material due to their hardness when dried.
- Red Soils
- Red soils are formed from the weathering of ancient crystalline and metamorphic rocks.
- They contain high iron oxide content, giving them a reddish color.
- These soils are found in regions with a warm, temperate, and moist climate.
- Regur Soils
- Also known as Black Cotton Soils, regur soils are derived from volcanic rocks and are known for their high fertility.
- They are particularly suitable for growing cotton and are found in the Deccan Plateau region of India
Last updated on Oct 28, 2023
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