1. General Agriculture
2. Agricultural Meteorology
3. Soil Fertility
4. Soil Conservation and Watershed Management
5. Dryland Agriculture
6. Water Management
7. Weed Management
8. Conservation Agriculture
9.Agricultural Microbiology
10. Crop Physiology
11. Plant Breeding
12. Seed Biology
13. Seed Health
14. Seed Production
15. Seed Certification and Quality Control
16. Seed Processing
17. Seed Storage and Seed Treatment
18. Plant Pathology
19. Agricultural Entomology
20. Agricultural Economics
21. Agricultural Extension
22. Horticulture 
23. Agroforestry
24. Artificial Intelligence in Agriculture
25. Agricultural Statistics
26. Animal Husbandry and Dairy Science 
27. Agricultural Chemicals 
28. Soil Testing