Agriculture & Biology
peat soils
100%
forest soils
84%
ammonium
68%
ammonia
61%
oxidation
53%
oxidants
35%
nitrification
28%
mineralization
17%
genes
12%
ammonia monooxygenase
9%
soil
9%
denaturing gradient gel electrophoresis
6%
peat
6%
soil pH
5%
soil organic matter
5%
ribosomal RNA
4%
nucleotide sequences
3%
nitrogen
3%
phylogeny
3%
bacteria
3%
testing
2%
Medicine & Life Sciences
Ammonium Compounds
93%
Forests
87%
Ammonia
82%
Soil
79%
Nitrification
44%
Bacterial Genes
16%
ammonia monooxygenase
12%
Genes
9%
Denaturing Gradient Gel Electrophoresis
8%
rRNA Genes
6%
16S Ribosomal RNA
6%
Nitrogen
5%
Bacteria
4%
Growth
3%
Population
2%
Earth & Environmental Sciences
peat soil
91%
forest soil
73%
ammonium
60%
ammonia
58%
oxidation
47%
gene
29%
nitrification
20%
mineralization
12%
soil
7%
inorganic nitrogen
6%
microcosm
5%
electrokinesis
5%
peat
5%
gel
4%
phylogenetics
4%
organic matter
3%
bacterium
3%
analysis
2%
test
2%
rate
1%
effect
1%