Earth & Environmental Sciences
soil emission
100%
tillage
78%
grassland
61%
cultivation method
55%
pasture
54%
crop
53%
greenhouse gas
48%
land use change
33%
cost
29%
mulch
24%
life cycle analysis
23%
bioenergy
20%
sheep
20%
biofuel
19%
nitrous oxide
19%
planting
18%
alternative energy
17%
harvest
16%
grazing
16%
method
16%
seed
16%
grass
15%
soil
15%
ammonium
15%
nitrate
13%
land use
12%
decision
11%
policy
11%
carbon
10%
comparison
7%
Agriculture & Biology
Miscanthus
96%
reduced tillage
95%
nitrous oxide
85%
grasslands
64%
soil
37%
greenhouse gases
29%
tillage
23%
Miscanthus giganteus
23%
methodology
20%
land use change
20%
pastures
19%
energy crops
18%
life cycle assessment
10%
crop management
9%
renewable energy sources
9%
land use
8%
production costs
7%
biodegradability
7%
ammonium
7%
soil sampling
7%
nitrates
6%
grazing
6%
carbon dioxide
6%
planting
6%
grasses
6%
sheep
5%
carbon
5%
crops
4%
seeds
4%
Engineering & Materials Science
Crops
82%
Land use
67%
Soils
58%
Greenhouse gases
56%
Fluxes
45%
Nitrates
23%
Costs
21%
Biofuels
20%
Seed
19%
Life cycle
16%
Oxides
15%
Renewable energy resources
14%
Carbon
14%