Agriculture & Biology
mine tailings
83%
acetylene reduction
73%
pioneer species
72%
heavy metals
50%
rhizosphere
50%
Paenibacillus
45%
nitrogen-fixing bacteria
41%
Haplopappus
40%
growth promotion
39%
Azospirillum lipoferum
35%
nitrogen
33%
bacteria
31%
assays
30%
Bradyrhizobium japonicum
28%
Lygodesmia
25%
plant growth
24%
Gymnocephalus
21%
Paenibacillus azotofixans
21%
Aster (Asteraceae)
17%
Juniperus
15%
nutrient deficiencies
12%
microbial activity
11%
nitrogen fixation
11%
minimum inhibitory concentration
11%
organic matter
10%
Mexico
9%
culture media
8%
Medicine & Life Sciences
Nitrogen-Fixing Bacteria
100%
Rhizosphere
89%
Acetylene
66%
Paenibacillus
52%
Heavy Metals
49%
Haplopappus
37%
Azospirillum lipoferum
34%
Nitrogen
24%
Bradyrhizobium
13%
Juniperus
13%
Extreme Environments
12%
Nitrogen Fixation
12%
Growth
12%
Asteraceae
11%
Mexico
8%
Microbial Sensitivity Tests
8%
Culture Media
7%
Nutrients
7%
Poisons
6%
Earth & Environmental Sciences
rhizosphere
58%
acetylene
56%
tailings
55%
assay
40%
bacterium
36%
heavy metal
34%
nitrogen
34%
plant species
17%
biological nitrogen fixation
14%
organic matter
6%
nutrient
6%