UPSC Prelims 2020 · Question 63 of 100

UPSC Prelims 2020 question on Zero Tillage Advantages

What is/are the advantage/advantages of zero tillage in agriculture?

1. Sowing of wheat is possible without burning the residue of previous crop.

2. Without the need for nursery of rice saplings, direct planting of paddy seeds in the wet soil is possible.

3. Carbon sequestration in the soil is possible.

Select the correct answer using the code given below:

  1. 1 and 2 only
  2. 2 and 3 only
  3. 3 only
  4. 1, 2 and 3
Show answer

Answer: D. 1, 2 and 3

Verdict

Correct statements: 1, 2 and 3 → Option (d).

Statement by statement

Statement 1 – CORRECT: Zero-till farming is a way of growing wheat crops without tillage or disturbing the soil in harvested fields. Happy Seeder is one of the unique techniques which is used for sowing seed without any burning of crop residue. Hence statement 1 is correct.

Statement 2 – CORRECT: Direct seeded rice (DSR) has received much attention because of its low-input demand. It involves sowing pre-germinated seed into a puddled soil surface (wet seeding), standing water (water seeding) or dry seeding into a prepared seedbed (dry seeding). Hence statement 2 is correct.

Statement 3 – CORRECT: Adopting no-tillage in agro-ecosystems has been widely recommended as a means of enhancing carbon (C) sequestration in soils. Hence statement 3 is correct.

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