Agronomy MCQs – Set 03 (Tillage & Tilth)
Agronomy MCQs – Set 03 (Tillage & Tilth)
Q1. Tillage is defined as:
A) Harvesting of crops
B) Mechanical manipulation of soil
C) Application of fertilizers
D) Irrigation management
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Correct Answer: Mechanical manipulation of soil
Q2. The main objective of tillage is to:
A) Destroy soil structure
B) Prepare a good seedbed
C) Increase soil erosion
D) Reduce soil fertility
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Correct Answer: Prepare a good seedbed
Q3. Tilth refers to:
A) Soil fertility status
B) Physical condition of soil
C) Chemical composition of soil
D) Biological activity of soil
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Correct Answer: Physical condition of soil
Q4. Which tillage operation is done before sowing?
A) Inter tillage
B) Off-season tillage
C) Preparatory tillage
D) Post-harvest tillage
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Correct Answer: Preparatory tillage
Q5. Primary tillage is usually carried out by:
A) Harrow
B) Plough
C) Cultivator
D) Roller
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Correct Answer: Plough
Q6. Which plough inverts the soil completely?
A) Disc plough
B) Country plough
C) Mouldboard plough
D) Chisel plough
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Correct Answer: Mouldboard plough
Q7. Secondary tillage is mainly done to:
A) Break hardpan
B) Pulverize soil clods
C) Increase soil depth
D) Remove stubbles only
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Correct Answer: Pulverize soil clods
Q8. Which tillage practice involves minimum soil disturbance?
A) Conventional tillage
B) Intensive tillage
C) Zero tillage
D) Deep tillage
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Correct Answer: Zero tillage
Q9. Deep tillage is mainly useful for:
A) Sandy soils
B) Shallow rooted crops
C) Breaking hardpan
D) Increasing weeds
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Correct Answer: Breaking hardpan
Q10. Which is NOT an objective of tillage?
A) Weed control
B) Soil aeration
C) Seed germination
D) Increase soil salinity
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Correct Answer: Increase soil salinity
Q11. Ideal tilth is important for:
A) Proper root growth
B) Increased runoff
C) Reduced infiltration
D) Soil compaction
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Correct Answer: Proper root growth
Q12. Which implement is used for shallow tillage?
A) Mouldboard plough
B) Disc plough
C) Cultivator
D) Subsoiler
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Correct Answer: Cultivator
Q13. Excessive tillage results in:
A) Improved soil structure
B) Reduced erosion
C) Soil structure degradation
D) Increased organic matter
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Correct Answer: Soil structure degradation
Q14. Which tillage conserves soil moisture?
A) Intensive tillage
B) Deep tillage
C) Conservation tillage
D) Summer ploughing
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Correct Answer: Conservation tillage
Q15. Summer ploughing is mainly done to:
A) Increase soil fertility
B) Kill soil-borne pests and weeds
C) Improve soil colour
D) Reduce soil temperature
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Correct Answer: Kill soil-borne pests and weeds
Q16. Which type of tillage helps in residue retention?
A) Conventional tillage
B) Intensive tillage
C) Conservation tillage
D) Off-season tillage
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Correct Answer: Conservation tillage
Q17. The depth of normal ploughing usually ranges between:
A) 2–5 cm
B) 5–10 cm
C) 15–25 cm
D) 40–50 cm
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Correct Answer: 15–25 cm
Q18. Which factor influences tilth the most?
A) Soil texture
B) Seed rate
C) Fertilizer dose
D) Crop variety
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Correct Answer: Soil texture
Q19. A good tilth soil has:
A) Large clods
B) Poor aeration
C) Adequate pore space
D) High compaction
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Correct Answer: Adequate pore space
Q20. Zero tillage is most suitable for:
A) Rice nursery
B) Wheat after rice
C) Sugarcane planting
D) Transplanted crops
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Correct Answer: Wheat after rice
