Earth & Environmental Sciences
pig
80%
slurry
75%
life cycle
65%
nutrient
52%
centrifuge
43%
environmental impact
41%
land
37%
farm
33%
ammonia
31%
resource use
29%
composting
27%
eutrophication
23%
phosphorus
19%
animal
18%
livestock farming
16%
liquid
16%
crop production
14%
carbon storage
14%
nitrous oxide
13%
soil carbon
13%
acidification
12%
ranking
12%
sensitivity analysis
11%
natural resource
11%
fossil
9%
policy
8%
nitrogen
7%
climate change
7%
cost
6%
simulation
5%
Engineering & Materials Science
Nutrients
100%
Life cycle
68%
Environmental impact
50%
Centrifuges
48%
Eutrophication
44%
Ammonia
42%
Composting
40%
Farms
38%
Phosphorus
32%
Animals
25%
Acidification
19%
Liquids
17%
Field emission
16%
Natural resources
15%
Crops
14%
Climate change
14%
Nitrogen
12%
Sensitivity analysis
11%
Oxides
11%
Soils
10%
Carbon
10%
Costs
5%
Chemical Compounds
Nutrient
85%
Eutrophication
82%
Ammonia
60%
Phosphorus(.)
44%
Liquid
28%
Field Emission
26%
Application
25%
Soil
22%
Donor
18%
Simulation
16%
Nitrogen
16%
Environment
15%
Carbon Atom
12%
Amount
11%