Earth & Environmental Sciences
agricultural application
15%
ammonia
9%
bacterium
7%
biochar
88%
conductivity
9%
ecosystem
6%
effect
19%
electronics
9%
fermentation
10%
fungus
10%
habitat
7%
land
13%
landfill
73%
monitoring
6%
nitrate
8%
nitrification
10%
nitrite
11%
nitrogen
7%
nutrient cycling
13%
organic matter
7%
oxidation
15%
productivity
8%
respiration
31%
restoration
26%
soil
10%
soil amendment
14%
soil condition
12%
soil property
10%
species diversity
22%
species richness
20%
subtropical region
14%
sulfur
8%
topsoil
11%
total organic carbon
11%
water content
9%
Engineering & Materials Science
Agriculture
18%
Ammonia
17%
Bacteria
18%
Biological materials
21%
Chemical analysis
10%
Ecosystems
17%
Fermentation
18%
Fungi
22%
Monitoring
9%
Nitrates
20%
Nitrification
27%
Nitrogen
15%
Nutrients
20%
Organic carbon
25%
Oxidation
29%
Productivity
13%
Restoration
48%
Soils
65%
Sulfur
16%
Water content
17%
Chemical Compounds
Ammonia
15%
Application
6%
Conductivity
13%
Ecosystem
24%
Fermentation
19%
Nitrate
15%
Nitrification
31%
Nitrite
20%
Nitrogen
12%
Nutrient
22%
Organic Carbon
22%
Organic Matter
22%
Oxidation Reaction
18%
pH Value
17%
Plant Growth
28%
Soil
70%
Soil Amendment
35%
Time
7%