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Which of the following is/are correct about the Alluvial soil? I - Humus, lime, and organic matters are present in Alluvial soil. II - New alluvium is termed as Bhangar. III - Alluvial soil is rich in potash

Which of the following is/are correct about the Alluvial soil? I - Humus, lime, and organic matters are present in Alluvial soil. II - New alluvium is termed as Bhangar. III - Alluvial soil is rich in potash Correct Answer Only I and III

The correct answer is Only I and III.

Key Points

  • Alluvial soil contains silt, sand, clay, and gravel as well as humus, lime, and organic matter. Hence statement I is correct.
  • It is usually most extensive in the lower part of a river's course, forming floodplains and deltas, but they may form at any point where the river overflows.
  • Major characteristics of alluvial soil are it is made by the deposition of the river load as it flows from its upper to its lower.
  • On the basis of its ages alluvial soil is divided into Bhangar (Old alluvium) and Khadar (New alluvium). Hence statement II is not correct.
  • It is porous as well as light, so it is easily tillable.
  • They are generally rich in potash but poor in phosphorous. Hence statement III is correct.
  • Alluvial soil is widespread in northern plains and river valleys.
  • Wheat, rice, maize, sugarcane, pulses, oilseed are mainly cultivated in alluvial soil.

Related Questions

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Which of the following statements regarding soil is/are correct? 1. Alluvial soils are rich in nitrogen content. 2. Black soils are rich in iron and lime but deficient in nitrogen. 3. Laterite soils are rich in iron and aluminium but deficient in nitrogen and potassium. Select the correct answer using the code given below.
Which of the following statements regarding soil is/are correct? 1.Alluvial soils are rich in nitrogen content. 2.Black soils are rich in iron and lime but deficient in nitrogen. 3.Laterite soils are rich in iron and aluminium but deficient in nitrogen and potassium. Select the correct answer using the code given below.
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2. In Jalpaiguri it is called Terai soil.
3. It loses fertility due to river bank erosion.
Which of the following is true?