Earth & Environmental Sciences
inorganic nitrogen
74%
organic nitrogen
71%
seedling
65%
pine
48%
oak
31%
morphotype
28%
fungus
21%
phytochemistry
13%
effect
9%
shoot
8%
relative abundance
7%
colonization
7%
ammonium
6%
nitrate
5%
acid
5%
in situ
4%
biomass
4%
nitrogen
4%
experiment
3%
rate
2%
Agriculture & Biology
organic nitrogen
78%
root tips
49%
Pinus
41%
seedlings
39%
nitrogen
37%
Quercus velutina
25%
morphs
23%
Quercus
22%
fungi
14%
pine barrens
13%
Pinus rigida
12%
fungal biomass
10%
plant biochemistry
9%
glutamic acid
8%
ammonium
7%
nitrates
6%
shoots
5%
Medicine & Life Sciences
Seedlings
100%
Meristem
75%
Nitrogen
63%
Pinus
25%
Fungi
21%
ammonium nitrate
14%
Quercus
13%
Biomass
9%
Glutamic Acid
7%
Regression Analysis
5%