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Q116 (CDS-I/2021) Geography › Indian Physical Geography › Indian soil types Answer Verified

Alluvial soils vary in nature from sandy loam to clay. They are generally

Result
Your answer: —  Â·  Correct: D
Explanation

Alluvial soils, covering approximately 43.4% of India's land area, are formed by the deposition of sediments from Himalayan and Peninsular rivers [2]. These soils exhibit a texture ranging from sandy loam to clay and are generally characterized by high fertility [1]. Chemically, alluvial soils are typically rich in potash (potassium), lime, and phosphoric acid [1]. However, while they contain adequate phosphoric acid for many crops, they are widely recognized in Indian geography as being relatively poor in phosphorus and nitrogen compared to other nutrients [2]. Specifically, while some sources mention adequate phosphoric acid [1], the general classification for competitive exams and standard geographical texts identifies them as rich in potash but poor in phosphorus [2]. This nutrient profile makes them ideal for cultivating wheat, rice, sugarcane, and pulses when supplemented with appropriate fertilizers [3].

Sources

  1. [2] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 6: Soils > 1. Alluvial Soils > p. 5
  2. [1] NCERT. (2022). Contemporary India II: Textbook in Geography for Class X (Revised ed.). NCERT. > Chapter 1: The Rise of Nationalism in Europe > Fig. 1.6: Alluvial Soil > p. 9
  3. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 9: Agriculture > c) Soils > p. 20
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SIMILAR QUESTIONS

CDS-I · 2023 · Q11 Relevance score: 0.66

Consider the following characteristics of a soil type: 1. These soils consist of various proportions of sand, silt and clay. 2. These soils contain adequate proportions of potash, phosphoric acid and lime. 3. These soils can be further classified on the basis of their age. Identify the type of soil on the basis of the given characteristics.

CDS-II · 2016 · Q45 Relevance score: 0.38

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.

CDS-II · 2023 · Q80 Relevance score: -0.65

Identify the type of soil on the basis of given characteristics: 1. They contain a large proportion of sodium, potassium and magnesium, and thus, they are infertile. 2. Their texture ranges from sandy to loamy. 3. They are more widespread in western Gujarat, deltas of the eastern coast and in Sunderban areas of West Bengal.

CDS-I · 2012 · Q26 Relevance score: -0.71

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