Agriculture & Biology
nitrates
100%
animal manures
96%
nitrogen
63%
Netherlands
63%
grasslands
60%
dairy farming
59%
mineral fertilizers
53%
farming systems
48%
leaching
45%
nitrous oxide
42%
fertilizers
40%
nitrous oxide production
40%
cattle manure
37%
sandy soils
35%
Belgium
32%
European Union
30%
corn silage
28%
grasses
28%
forage production
25%
livestock
24%
nutrient utilization
24%
excretion
24%
soil
22%
forage
22%
mineral soils
22%
plowing
21%
methodology
20%
calcium chloride
19%
farms
19%
nutrients
19%
corn
18%
Denmark
18%
Germany
17%
production technology
17%
crops
15%
mineralization
15%
phosphorus
15%
nitrogen fertilizers
15%
simulation models
15%
sward
12%
good agricultural practices
11%
minerals
11%
groundwater
11%
soil minerals
10%
ammonia
9%
application rate
9%
fertilizer application
9%
peat soils
8%
feed composition
8%
Lolium perenne
7%
farm area
7%
France
7%
cropland
7%
potassium chloride
6%
meat production
6%
nutrient management
6%
chemical industry
6%
animal production
6%
autumn
6%
Lolium
6%
laying hens
5%
dissolved organic nitrogen
5%
bioreactors
5%
animal manure management
5%
dairy cattle
5%
soil organic nitrogen
5%
planning
5%
statistical analysis
5%
Earth & Environmental Sciences
leaching
54%
nitrate directive
48%
dairy farming
46%
grassland
44%
manure
43%
peat soil
42%
biological method
38%
sandy soil
34%
chemical method
33%
farming system
31%
fertilizer
31%
nitrous oxide
30%
slurry
27%
maize
26%
solute
25%
nitrate
24%
soil
23%
ammonia
23%
nitrogen
23%
plowing
22%
agriculture
21%
surface water
19%
nutrient
18%
cattle
17%
mineral
16%
mineral fertiliser
16%
sward
15%
peat
15%
grass
14%
silage
11%
index
10%
fertilizer application
9%
mineralization
9%
dry matter
8%
rate
8%
grazing
7%
method
7%
incubation
7%
subsoil
6%
emission factor
6%
loss
6%
potassium chloride
5%
phosphorus
5%
water level
5%