Agriculture & Biology
emissions factor
100%
nitrous oxide production
99%
cattle manure
84%
fertilizer application
70%
grasslands
63%
nitrous oxide
50%
fertilizers
39%
Netherlands
14%
animal manures
13%
soil injection
12%
calcium ammonium nitrate
11%
grasses
10%
animal manure management
10%
agricultural soils
8%
surpluses
8%
sandy soils
7%
application rate
7%
liquids
5%
injection
5%
crops
3%
methodology
1%
Earth & Environmental Sciences
nitrous oxide
76%
cattle
74%
slurry
69%
emission factor
65%
fertilizer
63%
grassland
60%
manure
17%
grass
10%
shallow soil
7%
fertilizer application
7%
ammonium nitrate
7%
surplus
6%
agricultural soil
6%
sandy soil
6%
rate
6%
field experiment
5%
calcium
4%
crop
4%
liquid
3%
effect
1%
method
1%