Agronomy MCQs – Set 12 (Organic Farming)
Q1. Organic farming mainly emphasizes on:
A) Use of chemical fertilizers
B) Use of synthetic pesticides
C) Use of organic inputs and ecological balance
D) Maximum use of irrigation
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Correct Answer: Use of organic inputs and ecological balance
Q2. Which of the following is NOT allowed in organic farming?
A) Farmyard manure
B) Green manure
C) Chemical fertilizers
D) Compost
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Correct Answer: Chemical fertilizers
Q3. Organic farming aims at maintaining:
A) Soil fertility and biodiversity
B) High chemical residue
C) Monocropping system
D) Maximum short-term yield
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Correct Answer: Soil fertility and biodiversity
Q4. Which input is commonly used as organic manure?
A) Urea
B) DAP
C) Vermicompost
D) MOP
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Correct Answer: Vermicompost
Q5. Green manuring mainly helps in:
A) Increasing soil erosion
B) Improving soil organic matter
C) Increasing soil salinity
D) Increasing pest population
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Correct Answer: Improving soil organic matter
Q6. Which crop is commonly used for green manuring?
A) Wheat
B) Sunhemp
C) Rice
D) Maize
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Correct Answer: Sunhemp
Q7. Organic farming discourages the use of:
A) Crop rotation
B) Biological pest control
C) Synthetic chemicals
D) Mixed cropping
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Correct Answer: Synthetic chemicals
Q8. Vermicomposting involves the use of:
A) Bacteria only
B) Fungi only
C) Earthworms
D) Algae
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Correct Answer: Earthworms
Q9. Which practice is essential in organic farming?
A) Monocropping
B) Crop rotation
C) Heavy fertilizer use
D) Continuous irrigation
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Correct Answer: Crop rotation
Q10. Organic farming is also known as:
A) Chemical farming
B) Industrial farming
C) Ecological farming
D) Intensive farming
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Correct Answer: Ecological farming
Q11. Which biofertilizer is used for nitrogen fixation?
A) Azotobacter
B) PSB
C) Mycorrhiza
D) VAM
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Correct Answer: Azotobacter
Q12. Organic farming mainly improves:
A) Soil physical, chemical and biological properties
B) Soil salinity
C) Soil compaction
D) Soil erosion
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Correct Answer: Soil physical, chemical and biological properties
Q13. Which pest control method is preferred in organic farming?
A) Chemical pesticides
B) Biological control
C) Synthetic insecticides
D) Systemic herbicides
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Correct Answer: Biological control
Q14. Neem-based products are used in organic farming as:
A) Chemical fertilizers
B) Bio-pesticides
C) Herbicides
D) Growth regulators
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Correct Answer: Bio-pesticides
Q15. Organic farming avoids the use of:
A) Compost
B) Green manure
C) Genetically modified organisms (GMOs)
D) Crop residues
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Correct Answer: Genetically modified organisms (GMOs)
Q16. Which practice enhances nutrient recycling in organic farming?
A) Burning crop residues
B) Incorporation of crop residues
C) Excess irrigation
D) Soil compaction
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Correct Answer: Incorporation of crop residues
Q17. Organic farming is more sustainable because it:
A) Uses more chemicals
B) Degrades soil fertility
C) Maintains long-term soil health
D) Depends on monocropping
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Correct Answer: Maintains long-term soil health
Q18. Which certification is required for organic produce?
A) ISO certification
B) Organic certification by authorized agency
C) Fertilizer control order
D) Seed certification
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Correct Answer: Organic certification by authorized agency
Q19. The major limitation of organic farming is:
A) High input cost
B) Lower initial yield
C) Soil degradation
D) Increased pollution
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Correct Answer: Lower initial yield
Q20. Organic farming mainly contributes to:
A) Environmental pollution
B) Sustainable agriculture and food safety
C) Soil salinity
D) Reduced biodiversity
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Correct Answer: Sustainable agriculture and food safety
