M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Botany
Elective ORGANIC AGRICULTURE
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
Define the following
1. Hedge plants.
2. Shelter belts.
3. Vermicompost.
4. Rhizobium.
5. Mixed cultivation.
6. Intercropping.
7. Pheromones.
8. Bacillus thuringiensis.
9. Plant quarantine act.
10. APEDA.
Sub. Code
4MBO1E2
AFF-4897
2
sp 6
Part B x 5 25)
Answer all questions, choosing either or
11. Examine the relevance of organic farming to Indian
agriculture.
Or
Describe the pasture management.
12. List down the soil biota.
Or
Explain the features of biofertilizers.
13. Explain the multiple cropping systems.
Or
Describe the relay cropping system.
14. How will you control the weeds?
Or
How will you control the diseases in crop plants?
15. Validate the market potential of organic farming.
Or
Explain the certification and accreditation
procedures of organic manures.
Part C x 10 30)
Answer any three questions.
16. Highlight the features and prospects of agro-forestry.
17. Discuss the production of vermicompost.
AFF-4897
3
sp 6
18. Examine the role of crop rotation in the maintenance of
soil fertility.
19. Write an essay on Integrated Pest Management.
20. Critically examine the socio-economic impact of organic
farming.
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