Agriculture & Biology
cattle manure
71%
grasslands
53%
animal manures
43%
degradation
37%
nitrogen
35%
dairy farming
30%
sand
25%
forage
23%
animal manure management
21%
peat soils
21%
farms
20%
forest ecosystems
17%
agroecosystems
16%
peat
16%
application rate
15%
soil types
15%
growing season
12%
history
11%
ecosystems
11%
grasses
11%
habitats
8%
Medicine & Life Sciences
Manure
100%
Grassland
89%
Nitrogen
60%
Cattle
49%
Farms
35%
Ecosystem
34%
Soil
33%
Sand
21%
Fertilization
16%
Poaceae
9%
Forests
9%
Earth & Environmental Sciences
cattle
62%
manure
59%
grassland
50%
decomposition
44%
nitrogen
36%
dry matter
27%
dairy farm
21%
farm
13%
peat soil
9%
sand
9%
mesh size
9%
agricultural ecosystem
8%
forest ecosystem
7%
litter
7%
soil type
7%
peat
7%
growing season
7%
grass
6%
rate
5%
habitat
4%
ecosystem
4%
history
4%
experiment
3%