Agricultural and Biological Sciences
Cropping System
100%
Farming System
78%
Europeans
69%
Organic Farming
65%
Grain Legume
59%
Grains
57%
Farm Animal
48%
Pea
36%
Spring
34%
Soil Health
33%
Greenhouse Gas
31%
Trifolium pratense
30%
Crop Production
30%
Clover
28%
Feeds
25%
Land Use
25%
Nutrient Management
24%
Grassland
24%
Cultivar
23%
Sole
22%
Climate Change
22%
Trifolium repens
21%
Cereal Crop
20%
Arable Land
19%
Soil Fertility
19%
Soil Structure
19%
Soil Type
19%
Annuals
18%
Long Term Experiments
18%
Case Study
18%
Lolium perenne
18%
Pollinator
17%
Seeds
17%
Common Wheat
16%
Soil Quality
16%
Vicia faba
16%
Agricultural Policy
15%
Crop Diversity
14%
Biological Nitrogen Fixation
14%
Cover Crop
13%
Spring Barley
13%
Agricultural Soil
13%
Environmental Impact
13%
Species Diversity
13%
Conventional Farming
12%
Weed Control
12%
Forage Legumes
12%
Monoculture
12%
Soil Functions
12%
Topsoil
12%
Earth and Planetary Sciences
Farming System
34%
Emissions
22%
Europe
21%
Land Use
19%
Ecosystem Service
19%
Climate Change
18%
Greenhouse Gas Emission
18%
Nitrous Oxide
17%
United Kingdom
17%
Environmental Impact Assessment
16%
Crop Rotation
15%
Land Use Change
14%
Nitrous Oxide
14%
Intercropping
11%
Crop Production
10%
Environmental Impact
9%
Production System
8%
Greenhouse Gas Mitigation
8%
Germany
7%
Cultivar
7%
Agricultural Management
7%
Self Sufficiency
7%
Grassland
6%
Resource Use
6%
Agricultural Soil
6%
Soil Type
5%
Denitrification
5%
Environmental Cost
5%
Soil Carbon
5%
Climate Change Mitigation
5%
Root System
5%
Food Production
5%
Smallholder
5%
Congo
5%
Research Policy
5%
Soil Degradation
5%
Soil Depth
5%
Soil Process
5%
Air Pollution
5%
Topsoil
5%
Land Degradation
5%
Liming
5%
Surface Water
5%
Stoichiometry
5%
Cover Crop
5%
Agricultural Policy
5%
Field Experiment
5%
Kenya
5%
Soil Microbiology
5%
Carbon Budget
5%
