Agriculture & Biology
arable soils
58%
soil organic carbon
57%
no-tillage
50%
nitrogen content
48%
tillage
48%
discing
43%
microbial biomass
33%
plowing
23%
soil bacteria
22%
community structure
19%
deep tillage
13%
minimum tillage
13%
total organic carbon
12%
carbon sinks
12%
conventional tillage
11%
homogenization
10%
microbial activity
10%
bacterial communities
10%
restriction fragment length polymorphism
8%
barley
7%
sampling
7%
nitrogen
5%
DNA
5%
soil
5%
methodology
2%
Earth & Environmental Sciences
tillage
53%
zero tillage
40%
nitrogen
30%
organic carbon
24%
plowing
23%
soil
21%
biomass
11%
community structure
10%
barley
7%
carbon stock
6%
polymorphism
6%
microbial activity
6%
respiration
5%
DNA
5%
disturbance
4%
substrate
4%
bacterium
3%
sampling
3%
loss
3%
distribution
2%
effect
1%
method
1%
Chemical Compounds
Tillage
100%
Soil
42%
Nitrogen
30%
Organic Carbon
25%
Microbial Biomass
22%
Homogenization
5%
Sampling
3%
Length
2%
Engineering & Materials Science
Organic carbon
48%
Nitrogen
46%
Soils
39%
Biomass
17%
Polymorphism
7%
Bacteria
7%
DNA
6%
Substrates
4%
Sampling
4%