Consider the following agricultural practices:

  1. Contour bunding
  2. Relay cropping
  3. Zero tillage

In the context of global climate change, which of the above helps/help in carbon sequestration/storage in the soil?

[UPSC Civil Services Exam – 2012 Prelims]

(a) 1 and 2 only

(b) 3 only

(c) 1, 2 and 3

(d) None of them


Answer: (b)        

Explanation:

  • Contour bunding (or contour bundling), which involves the placement of lines of stones along with the natural rises of a landscape, and contour farming. These techniques help to capture and hold rainfall before it can become runoff. Hence, statement 1 is not correct.
  • Relay cropping is essentially a special version of double cropping, where the second crop is planted into the first crop before harvest, rather than waiting until after harvest as in true double-cropping. Hence, statement 2 is not correct.

Zero tillage:

  • It is the process where the crop seed will be sown through drillers without prior land preparation and disturbing the soil where previous crop stubbles are present.
  • Zero tillage not only reduces the cost of cultivation it also reduces the soil erosion, crop duration, and irrigation requirement, and weed effect which is better than tillage.

Consider the following statements:                                                                   The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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Consider the following statements:                                                         The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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