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Environment
Sustainable Agriculture
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UPSC Prelims 2020 Paper-1 📅 04 Oct, 2020

In the context of India, which of the following is/are considered to be practice(s) of eco-friendly agriculture?
1. Crop diversification
2. Legume intensification
3. Tensiometer use
4. Vertical farming
Select the correct answer using the code given below:

A
1, 2 and 3 only
B
3 only
C
4 only
D
1, 2, 3 and 4
Result Summary
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UPSC Prelims
2020 • 04 Oct, 2020 • Paper-1
In the context of India, which of the following is/are considered to be practice(s) of eco-friendly agriculture?
1. Crop diversification
2. Legume intensification
3. Tensiometer use
4. Vertical farming
Select the correct answer using the code given below:
Correct Answer
1, 2, 3 and 4
Soil Health Management: Crop diversification prevents the exhaustion of specific soil nutrients caused by monocropping. Legume intensification integrates pulse ......
Ref/Book : UPSC Prelims 2020
Ref. Subject Environment
Chapter -
Ref. Topic Sustainable Agriculture
Pg. No -
💡 Analysis & Explanation
Soil Health Management ▼
Crop diversification prevents the exhaustion of specific soil nutrients caused by monocropping. Legume intensification integrates pulse crops that naturally fix atmospheric nitrogen, drastically reducing the ecological need for harmful synthetic fertilizers. Both 1 and 2 are eco-friendly.
Water Conservation ▼
A tensiometer is a specialized scientific instrument inserted into the soil to continuously measure moisture tension. It tells farmers exactly when the soil is dry enough to require watering, preventing the massive environmental damage of over-irrigation and groundwater depletion. Statement 3 is eco-friendly.
Land Use Optimization ▼
Vertical farming involves growing crops in stacked layers in controlled environments. It uses a fraction of the land, minimizes water consumption through hydroponics, and heavily reduces the need for pesticide spraying, thus preserving natural ecosystems. Statement 4 is eco-friendly.
Conclusion ▼
All four modern practices actively contribute to sustainable, eco-friendly agriculture.
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