Agriculture & Biology
savannas
69%
oxidants
67%
ammonia
57%
soybeans
50%
soil
34%
Archaea
24%
methodology
18%
nitrification
18%
agricultural soils
17%
bacteria
16%
cerrado
16%
soil ecosystems
10%
soil biota
9%
gravel
9%
soil management
8%
ammonium nitrate
8%
Neotropics
8%
fallow
8%
isotopes
7%
management systems
7%
soil pH
7%
tillage
7%
microbial communities
7%
ammonium
7%
rhizosphere
6%
ecosystems
5%
genetic markers
5%
crops
4%
Earth & Environmental Sciences
soybean
74%
savanna
72%
ammonia
54%
restoration
51%
soil
29%
molecular analysis
17%
cerrado
16%
bacterium
15%
agricultural soil
12%
nitrification
11%
gravel extraction
10%
soil ecosystem
7%
soil management
7%
fallow
7%
ammonium nitrate
7%
ecosystem process
6%
biome
6%
tillage
6%
rhizosphere
6%
marker
5%
microbial community
5%
ammonium
5%
gene
4%
isotope
4%
crop
4%
rate
2%
effect
1%
method
1%
Medicine & Life Sciences
Grassland
100%
Soybeans
84%
Ammonia
78%
Soil
74%
Archaea
16%
Nitrification
16%
Bacteria
12%
Ecosystem
10%
Microbiota
9%
ammonium nitrate
8%
Rhizosphere
7%
Ammonium Compounds
5%
Isotopes
4%
Fertilization
4%
Genes
1%