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UPSC Prelims 2020 Paper-1 📅 04 Oct, 2020

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:

A
1 and 2 only
B
2 and 3 only
C
3 only
D
1, 2 and 3
Result Summary
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UPSC Prelims
2020 • 04 Oct, 2020 • Paper-1
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:
Correct Answer
1, 2 and 3
Stubble Management: Zero tillage utilizes specialized seed drills (like the Happy Seeder) that allow seeds to be sown directly into the undisturbed soil through......
Ref/Book : UPSC Prelims 2020
Ref. Subject Economy
Chapter -
Ref. Topic Agriculture
Pg. No -
💡 Analysis & Explanation
Stubble Management ▼
Zero tillage utilizes specialized seed drills (like the Happy Seeder) that allow seeds to be sown directly into the undisturbed soil through the heavy stubble of the previous rice crop, entirely eliminating the need to burn the residue. Statement 1 is correct.
Direct Seeding Innovation ▼
This technique enables Direct Seeded Rice (DSR), where rice seeds are drilled straight into the un-puddled, wet field, completely bypassing the labor-intensive requirement of raising and transplanting nursery saplings. Statement 2 is correct.
Environmental Impact ▼
Because the soil structure is not aggressively broken up by constant plowing, the natural organic matter trapped inside is not rapidly oxidized. This undisturbed state actively promotes long-term carbon sequestration in the soil profile. Statement 3 is correct.
Conclusion ▼
All three statements outline the scientifically proven benefits of this conservation agriculture technique.
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