Earth & Environmental Sciences
herb
67%
rhizosphere
65%
shrub
58%
plantation
58%
seasonal variation
52%
understory
33%
overstory
20%
soil
16%
effect
14%
chemical property
14%
phosphorus
11%
plant life
10%
functional role
10%
nitrogen
9%
nutrient content
9%
biogeochemical cycle
8%
forest ecosystem
7%
dissolved organic carbon
7%
soil property
7%
ammonium
6%
nitrate
5%
vegetation
4%
ecosystem
4%
sampling
4%
carbon
4%
Agriculture & Biology
herbs
57%
rhizosphere
56%
seasonal variation
55%
shrubs
55%
plantations
54%
understory
32%
overstory
20%
total phosphorus
19%
soil
12%
dissolved organic carbon
10%
ammonium nitrogen
10%
forest plantations
10%
nitrate nitrogen
10%
soil chemical properties
9%
forest ecosystems
9%
biogeochemical cycles
8%
tropical forests
8%
total nitrogen
8%
soil properties
7%
soil pH
7%
nutrient content
7%
physicochemical properties
6%
ecosystems
6%
vegetation
5%
plant growth
5%
carbon
5%
China
5%
sampling
2%
Medicine & Life Sciences
Rhizosphere
100%
Soil
51%
Forests
28%
Ecosystem
17%
Phosphorus
16%
Carbon
15%
Nitrogen
15%
ammonium nitrate
14%
Nutrients
6%
China
6%
Growth
4%