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With reference to the alluvial soils of India, consider the following statements:
1. They are depositional soils, transported and deposited by rivers and streams.
2. They are generally rich in phosphorus but poor in potash.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
With reference to the alluvial soils of India, consider the following ...
- Alluvial soils are widespread in the northern plains and the river valleys. These soils cover about 40 percent of the total area of the country. They are depositional soils, transported and deposited by rivers and streams. Hence statement 1 is correct.
- The alluvial soils vary in nature from sandy loam to clay. They are generally rich in potash but poor in phosphorous. Hence statement 2 is not correct.
- In the Upper and Middle Ganga plain, two different types of alluvial soils have developed, viz. Khadar and Bhangar. Khadar is the new alluvium and is deposited by floods annually, which enriches the soil by depositing fine silts.
- Bhangar represents a system of older alluvium, deposited away from the flood plains. Both the Khadar and Bhangar soils contain calcareous concretions (Kankars). These soils are more loamy and clayey in the lower and middle Ganga plain and the Brahmaputra valley.
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With reference to the alluvial soils of India, consider the following ...
Explanation:
Depositional Nature of Alluvial Soils:
- Alluvial soils in India are indeed depositional soils that have been transported and deposited by rivers and streams over time.
- These soils are formed as a result of the deposition of sediments brought down by rivers from the Himalayas and other mountain ranges.
Nutrient Composition of Alluvial Soils:
- Alluvial soils are generally rich in a variety of nutrients, including phosphorus.
- However, they are often deficient in potash, which is an essential nutrient for plant growth.
- This imbalance in nutrient composition can affect the fertility of the soil and the productivity of crops grown in these regions.
Correct Statement:
- Therefore, statement 1 is correct as alluvial soils are indeed depositional soils transported and deposited by rivers and streams.
- Statement 2, however, is incorrect as alluvial soils are generally rich in phosphorus but may be deficient in potash.
Therefore, the correct answer is option 'A' - 1 only.
Depositional Nature of Alluvial Soils:
- Alluvial soils in India are indeed depositional soils that have been transported and deposited by rivers and streams over time.
- These soils are formed as a result of the deposition of sediments brought down by rivers from the Himalayas and other mountain ranges.
Nutrient Composition of Alluvial Soils:
- Alluvial soils are generally rich in a variety of nutrients, including phosphorus.
- However, they are often deficient in potash, which is an essential nutrient for plant growth.
- This imbalance in nutrient composition can affect the fertility of the soil and the productivity of crops grown in these regions.
Correct Statement:
- Therefore, statement 1 is correct as alluvial soils are indeed depositional soils transported and deposited by rivers and streams.
- Statement 2, however, is incorrect as alluvial soils are generally rich in phosphorus but may be deficient in potash.
Therefore, the correct answer is option 'A' - 1 only.
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With reference to the alluvial soils of India, consider the following statements:1. They are depositional soils, transported and deposited by rivers and streams.2. They are generally rich in phosphorus but poor in potash.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?
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