Agronomy MCQs – Set 13 (Conservation Agriculture)
Q1. Conservation agriculture mainly aims at:
A) Maximum tillage
B) Sustainable crop production with resource conservation
C) Heavy fertilizer use
D) Intensive irrigation
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Correct Answer: Sustainable crop production with resource conservation
Q2. Conservation agriculture is based on how many main principles?
A) One
B) Two
C) Three
D) Four
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Correct Answer: Three
Q3. Which is NOT a principle of conservation agriculture?
A) Minimum soil disturbance
B) Permanent soil cover
C) Crop diversification
D) Excessive tillage
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Correct Answer: Excessive tillage
Q4. Minimum soil disturbance refers to:
A) Intensive ploughing
B) Zero or reduced tillage
C) Deep ploughing
D) Summer ploughing
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Correct Answer: Zero or reduced tillage
Q5. Permanent soil cover is achieved by:
A) Removing crop residues
B) Burning residues
C) Retaining crop residues on soil surface
D) Deep ploughing
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Correct Answer: Retaining crop residues on soil surface
Q6. Crop diversification in conservation agriculture helps in:
A) Increasing pests only
B) Improving soil health and reducing risk
C) Increasing monoculture
D) Reducing biodiversity
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Correct Answer: Improving soil health and reducing risk
Q7. Zero tillage is an example of:
A) Conventional agriculture
B) Conservation agriculture
C) Shifting cultivation
D) Intensive farming
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Correct Answer: Conservation agriculture
Q8. Retention of crop residues mainly helps in:
A) Increasing evaporation
B) Conserving soil moisture
C) Increasing soil erosion
D) Soil compaction
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Correct Answer: Conserving soil moisture
Q9. Conservation agriculture reduces:
A) Soil organic matter
B) Soil erosion
C) Soil fertility
D) Soil biodiversity
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Correct Answer: Soil erosion
Q10. Which cropping system supports conservation agriculture?
A) Monocropping
B) Crop rotation
C) Continuous cropping
D) Sole cropping
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Correct Answer: Crop rotation
Q11. Conservation agriculture improves soil structure by:
A) Breaking soil aggregates
B) Increasing organic matter
C) Excess tillage
D) Soil compaction
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Correct Answer: Increasing organic matter
Q12. Which practice is avoided in conservation agriculture?
A) Crop residue retention
B) Zero tillage
C) Burning of crop residues
D) Crop rotation
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Correct Answer: Burning of crop residues
Q13. Conservation agriculture mainly improves:
A) Short-term yield only
B) Long-term sustainability of farming systems
C) Water pollution
D) Soil salinity
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Correct Answer: Long-term sustainability of farming systems
Q14. Which soil property is enhanced under conservation agriculture?
A) Bulk density
B) Infiltration rate
C) Soil compaction
D) Runoff
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Correct Answer: Infiltration rate
Q15. Conservation agriculture is most suitable for:
A) Irrigated rice systems only
B) Dryland and rainfed areas
C) Forest ecosystems
D) Urban farming
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Correct Answer: Dryland and rainfed areas
Q16. Which implement is commonly used in zero tillage?
A) Mouldboard plough
B) Disc plough
C) Zero till seed drill
D) Harrow
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Correct Answer: Zero till seed drill
Q17. Conservation agriculture helps in climate change mitigation by:
A) Increasing carbon emission
B) Reducing carbon sequestration
C) Enhancing carbon sequestration in soil
D) Increasing fossil fuel use
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Correct Answer: Enhancing carbon sequestration in soil
Q18. Which of the following is a benefit of conservation agriculture?
A) Higher soil erosion
B) Reduced soil moisture
C) Improved water use efficiency
D) Increased labour requirement
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Correct Answer: Improved water use efficiency
Q19. Conservation agriculture discourages:
A) Crop rotation
B) Residue retention
C) Intensive tillage
D) Intercropping
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Correct Answer: Intensive tillage
Q20. The ultimate goal of conservation agriculture is to:
A) Maximize short-term profit
B) Reduce crop diversity
C) Achieve sustainable and resilient farming systems
D) Increase chemical input use
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Correct Answer: Achieve sustainable and resilient farming systems
