Agriculture & Biology
nitrogen cycle
100%
grasslands
65%
legumes
61%
fine roots
57%
ecosystems
57%
root shoot ratio
56%
taxonomy
55%
biomass
46%
grasses
37%
forbs
30%
warm season
29%
cold season
29%
nitrogen
29%
biogeochemical cycles
28%
sandy soils
26%
aboveground biomass
25%
mineralization
24%
leaves
22%
biomass production
22%
principal component analysis
22%
plant growth
18%
stems
15%
soil
12%
tissues
11%
Earth & Environmental Sciences
grassland
62%
productivity
52%
nitrogen
45%
root-shoot ratio
23%
fine root
19%
effect
17%
fixation
14%
biomass
13%
grass
12%
monoculture
9%
ecosystem
8%
inorganic nitrogen
8%
ecosystem process
8%
nutrient cycling
8%
aboveground biomass
8%
sandy soil
7%
organ
7%
stem
6%
principal component analysis
6%
tissue
5%
soil
3%
parameter
2%