Earth & Environmental Sciences
soil
85%
maize
64%
nitrogen
53%
gene
39%
crop
36%
nitrate
31%
tillage
30%
soybean
28%
bacterium
26%
rice
24%
watershed
24%
fertilizer
23%
canopy
23%
rate
22%
loss
21%
microbial community
21%
ecosystem
20%
phosphorus
20%
effect
19%
nitrous oxide
19%
potato
18%
manure
18%
organic carbon
17%
lake
17%
growing season
17%
water
17%
carbon
16%
DNA
16%
denitrification
16%
leaching
15%
pathogen
14%
soil carbon
14%
sediment
14%
wheat
13%
sensor
13%
water quality
13%
biomass
13%
volatile organic compound
13%
budget
12%
runoff
12%
mercury
12%
nodulation
12%
cropping practice
12%
urea
11%
index
11%
nutrient
11%
hillslope
11%
river
11%
modeling
11%
oxidation
11%
drainage
11%
soil water
11%
analysis
11%
river basin
11%
method
11%
summer
10%
vegetation index
10%
isoprene
10%
winter
10%
ozone
10%
plain
10%
cover crop
10%
atrazine
10%
land use
10%
rhizobacterium
10%
irrigation
10%
eddy covariance
10%
EOS
10%
productivity
10%
aerosol
10%
antibiotic resistance
9%
earthworm
9%
land
9%
formic acid
9%
antibiotics
9%
wetland
9%
removal
9%
indicator
9%
hydrothermal plume
9%
prediction
9%
wastewater
9%
comparison
9%
ammonia
9%
beach
9%
atmosphere
8%
temperature
8%
agriculture
8%
farm
8%
marker
8%
simulation
8%
bioreactor
8%
weathering
8%
isotope
8%
grassland
8%
Agriculture & Biology
soil
79%
nitrogen
59%
corn
52%
potatoes
25%
crops
25%
soybeans
25%
nitrates
24%
Bradyrhizobium japonicum
22%
nitrogen fertilizers
19%
microbial communities
19%
tillage
18%
ecosystems
18%
canopy
17%
phosphorus
16%
carbon
16%
soil carbon
15%
water
15%
grain yield
15%
denitrification
15%
vegetation index
14%
Escherichia coli
13%
fertilizers
13%
soil organic matter
13%
tubers
13%
methodology
13%
nitrous oxide
13%
bacteria
13%
genes
13%
atrazine
12%
soil organic carbon
12%
growing season
12%
China
12%
animal manures
12%
sampling
12%
soil water
11%
remote sensing
11%
nutrients
11%
leaching
11%
nodulation
11%
winter wheat
11%
carbon dioxide
10%
soil quality
10%
soil properties
10%
rice
10%
climate
10%
Zea mays
10%
cover crops
10%
eddy covariance
10%
sediments
10%
no-tillage
9%
water quality
9%
Minnesota River
9%
planting
9%
drainage
9%
biomass
9%
cropping systems
9%
mineralization
9%
weather
9%
potassium
8%
climate change
8%
bacterial communities
8%
nutrient use efficiency
8%
agricultural watersheds
8%
microorganisms
8%
uptake mechanisms
8%
testing
8%
degradation
7%
uncertainty
7%
runoff
7%
agriculture
7%
sandy soils
7%
organic carbon
7%
strip tillage
7%
nutrition assessment
7%
sand
7%
ammonia
7%
Corn Belt region
7%
alfalfa
7%
fertilizer rates
7%
leaves
7%
microbiome
7%
paddy soils
7%
cultivars
7%
Thinopyrum intermedium subsp. intermedium
7%
prediction
7%
land use
6%
Rhizobium
6%
urea
6%
soil temperature
6%
carbon sequestration
6%
evapotranspiration
6%
community structure
6%
crop yield
6%
farmers
6%
rice soils
6%
temperature
6%
sulfur
6%
USDA
6%
hydrology
6%
Medicine & Life Sciences
Soil
100%
Bradyrhizobium
48%
Microbiota
40%
Nitrogen
35%
Bacteria
32%
Soybeans
27%
Atrazine
25%
Genes
23%
Water
21%
Fecal Microbiota Transplantation
20%
Zea mays
19%
Escherichia coli
18%
Rhizobium
17%
Fertilizers
17%
Ecosystem
17%
Denitrification
16%
Manure
16%
Nitrates
15%
Growth
14%
Carbon
14%
Clostridium Infections
14%
Forests
14%
Genome
13%
Nutrients
13%
atrazine chlorohydrolase
13%
Rivers
13%
Pseudomonas
12%
cyanuric acid
11%
Rhizosphere
11%
United States Department of Agriculture
11%
Grassland
11%
Waste Water
11%
Agriculture
11%
Gastrointestinal Microbiome
11%
Herbicides
11%
Solanum tuberosum
10%
Polymerase Chain Reaction
10%
16S Ribosomal RNA
10%
Symbiosis
10%
Triazines
9%
Triticum
9%
Biomass
9%
Oryza
9%
Temperature
9%
Sulfur
8%
Water Quality
8%
rRNA Genes
8%
Sinorhizobium meliloti
8%
Oceans and Seas
8%
Climate Change
8%
Enzymes
8%
Ammonia
8%
Genotype
8%
Fabaceae
8%
Iron
7%
Medicago
7%
Adenosine Diphosphate
7%
Lakes
7%
Nitrous Oxide
7%
DNA
6%
Anti-Bacterial Agents
6%
Plasmids
6%
Minerals
6%
Hydrothermal Vents
6%
Mycobiome
6%
Climate
6%
Nitrification
6%
Population
6%
Medicago truncatula
6%
High-Throughput Nucleotide Sequencing
5%
Bioreactors
5%
Medicago sativa
5%
Serogroup
5%
mesotrione
5%
Bacterial Structures
5%
DNA Fingerprinting
5%
Ecology
5%
Phosphorus
5%
Germination
5%
Nitrogen Fixation
5%
Microbial Drug Resistance
5%
Sinorhizobium
5%
Clostridium difficile
5%
Fungi
5%
Metagenomics
5%
Metals
5%
Farms
5%