Agronomy MCQs – Set 06 (Crop Geometry & Plant Population)
Agronomy MCQs – Set 06 (Crop Geometry & Plant Population)
Q1. Crop geometry refers to:
A) Shape of crop canopy
B) Arrangement and spacing of plants in a field
C) Size of plant leaves
D) Height of plants
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Correct Answer: Arrangement and spacing of plants in a field
Q2. Plant population is defined as:
A) Number of seeds sown per hectare
B) Number of plants per unit area
C) Number of tillers per plant
D) Number of leaves per plant
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Correct Answer: Number of plants per unit area
Q3. Optimum plant population ensures:
A) Maximum vegetative growth
B) Minimum competition among plants
C) Maximum yield per unit area
D) Minimum fertilizer requirement
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Correct Answer: Maximum yield per unit area
Q4. Too high plant population generally results in:
A) Increased tillering
B) Severe competition for resources
C) Better light interception
D) Increased seed size
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Correct Answer: Severe competition for resources
Q5. Too low plant population causes:
A) Lodging
B) Poor utilization of resources
C) Increased weed competition
D) Both B and C
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Correct Answer: Both B and C
Q6. Which factor mainly determines optimum plant population?
A) Seed colour
B) Crop variety and growth habit
C) Market price
D) Fertilizer cost
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Correct Answer: Crop variety and growth habit
Q7. Closer spacing is generally recommended for:
A) Spreading type varieties
B) Tall and vigorous crops
C) Erect and short duration varieties
D) Perennial crops
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Correct Answer: Erect and short duration varieties
Q8. Wider spacing is suitable for:
A) Dwarf varieties
B) Erect growing crops
C) Spreading and long duration crops
D) Close tillering crops
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Correct Answer: Spreading and long duration crops
Q9. Which spacing reduces inter-plant competition?
A) Very close spacing
B) Optimum spacing
C) Random spacing
D) Broadcasting
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Correct Answer: Optimum spacing
Q10. Plant population is directly influenced by:
A) Seed rate and spacing
B) Fertilizer dose
C) Irrigation frequency
D) Weed density
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Correct Answer: Seed rate and spacing
Q11. Which method ensures uniform plant population?
A) Broadcasting
B) Dibbling
C) Line sowing with proper spacing
D) Random sowing
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Correct Answer: Line sowing with proper spacing
Q12. Crop geometry mainly affects:
A) Soil pH
B) Light interception and aeration
C) Seed viability
D) Soil texture
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Correct Answer: Light interception and aeration
Q13. Which spacing is commonly followed in transplanted rice?
A) 10 × 10 cm
B) 20 × 10 cm
C) 30 × 30 cm
D) 45 × 45 cm
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Correct Answer: 20 × 10 cm
Q14. Square planting has the advantage of:
A) Difficult interculture
B) Easy intercultural operations in both directions
C) Higher seed rate
D) More lodging
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Correct Answer: Easy intercultural operations in both directions
Q15. Rectangular planting differs from square planting because:
A) Row spacing equals plant spacing
B) Row spacing is more than plant spacing
C) Plant spacing is more than row spacing
D) No fixed spacing is followed
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Correct Answer: Row spacing is more than plant spacing
Q16. Which crop generally requires wider spacing?
A) Wheat
B) Rice
C) Cotton
D) Mustard
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Correct Answer: Cotton
Q17. Closer spacing usually results in:
A) Increased tillering per plant
B) Reduced tillering per plant
C) Increased individual plant yield
D) Larger seed size
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Correct Answer: Reduced tillering per plant
Q18. Optimum crop geometry helps in:
A) Increasing weed growth
B) Efficient use of light, water and nutrients
C) Increasing pest incidence
D) Delayed maturity
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Correct Answer: Efficient use of light, water and nutrients
Q19. Which planting pattern is followed in paired row planting?
A) Equal spacing between all rows
B) Two close rows followed by wider space
C) Random arrangement of rows
D) Zig-zag arrangement
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Correct Answer: Two close rows followed by wider space
Q20. Improper crop geometry mainly leads to:
A) Higher seed quality
B) Lodging and yield reduction
C) Better root growth
D) Increased soil fertility
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Correct Answer: Lodging and yield reduction
