Subfield
- Agronomy and Crop Science60
- Soil Science57
- Plant Science28
- General Agricultural and Biological Sciences17
- Forestry11
- Horticulture9
- Insect Science7
- Nutrition and Dietetics7
- Animal Science and Zoology6
- Pollution5
- Waste Management and Disposal3
- Aquatic Science2
- Ecology, Evolution, Behavior and Systematics2
- Infectious Diseases2
- Water Science and Technology2
- Accounting1
- Biotechnology1
- Complementary and alternative medicine1
- Development1
- Environmental Chemistry1