Medicine & Life Sciences
Nitrification
100%
Archaea
66%
Ammonia
62%
Soil
59%
Bacteria
37%
ammonia monooxygenase
32%
Gene Dosage
15%
Denaturing Gradient Gel Electrophoresis
13%
Ammonium Compounds
12%
Forests
3%
Polymerase Chain Reaction
3%
Dermatoglyphics
3%
Genes
1%
Agriculture & Biology
nitrification
65%
acid soils
59%
Archaea
57%
ammonia
45%
bacteria
30%
ammonia monooxygenase
29%
soil
27%
China
25%
gene dosage
17%
denaturing gradient gel electrophoresis
12%
ammonium
10%
forest soils
4%
land use
3%
quantitative polymerase chain reaction
2%
environmental factors
2%
genes
1%
Earth & Environmental Sciences
nitrification
50%
ammonia
43%
bacterium
34%
soil
23%
gene
13%
electrokinesis
9%
gel
8%
ammonium
8%
incubation
5%
microcosm
3%
forest soil
3%
environmental factor
2%
land use
2%
land
1%
product
1%
effect
1%
experiment
1%
rate
1%