Earth & Environmental Sciences
air
9%
arable land
19%
biogas
17%
biomass
10%
byproduct
15%
carbon storage
18%
cereal
76%
cost
9%
cost-benefit analysis
20%
economic analysis
100%
economics
10%
energy use
37%
environmental effect
35%
fertilizer application
20%
fiber
13%
grass
44%
greenhouse gas emissions
15%
land use
23%
leaching
40%
life cycle analysis
22%
nitrogen
41%
pesticide application
24%
pig
52%
production system
18%
profit
17%
refinery
87%
soil
7%
sustainability
13%
tax
19%
transition
54%
Engineering & Materials Science
Air
11%
Biogas
25%
Biomass
19%
Byproducts
22%
Carbon
16%
Cost benefit analysis
27%
Costs
8%
Economic analysis
96%
Economic and social effects
29%
Environmental impact
41%
Feedstocks
21%
Fertilizers
27%
Fibers
14%
Gas emissions
22%
Greenhouse gases
22%
Land use
52%
Leaching
79%
Life cycle
18%
Nitrogen
80%
Pesticides
29%
Profitability
19%
Soils
17%
Sustainable development
19%
Taxation
25%
Chemical Compounds
Application
10%
Byproduct
17%
Carbon Atom
8%
Energy
16%
Fertilizer
21%
Fiber
11%
Green
60%
Leaching
47%
Nitrogen
42%
Pesticide
16%
Soil
14%