Agriculture & Biology
weeds
100%
soybeans
50%
cover crops
38%
weed control
36%
agriculture
34%
soil
33%
crops
33%
agroecosystems
31%
Amaranthus hybridus
30%
mycorrhizal fungi
29%
corn
28%
prairies
25%
seed shattering
23%
grasslands
21%
ecosystem services
20%
biomass
20%
triazines
19%
invasive species
18%
energy crops
18%
rye
18%
rotational grazing
17%
Diodia
17%
learning
16%
cropping systems
16%
education
16%
tillage
16%
Miscanthus giganteus
16%
Cirsium arvense
16%
seeds
15%
Conservation Reserve Program
14%
curriculum
14%
Eastern United States
14%
ecotypes
14%
conservation tillage
13%
collective action
13%
phenology
13%
students
13%
grasses
13%
commercialization
13%
Panicum virgatum
12%
ridge tillage
12%
nitrogen cycle
12%
simulation models
11%
indigenous species
11%
Rubiaceae
11%
education programs
11%
land use
11%
Glycine max
11%
mutation
11%
Earth & Environmental Sciences
weed
62%
crop
45%
prairie
31%
fitness
28%
cover crop
26%
maize
22%
ecotype
22%
weed control
22%
biomass
21%
agriculture
19%
soil
19%
soybean
19%
triazine
18%
cultivar
17%
restoration
16%
genotype
16%
effect
16%
mutation
15%
tillage
15%
grassland
14%
annual plant
13%
agricultural ecosystem
12%
commercialization
12%
grazing
12%
invasive species
12%
farm
11%
social network
11%
cropping practice
11%
conditioning
10%
survivorship
10%
cost
10%
stakeholder
10%
agricultural land
9%
path analysis
9%
native species
9%
learning
9%
grass
8%
food
8%
education
8%
seed production
8%
seed
7%
decision making
7%
crop rotation
7%
conservation tillage
6%
canola
6%
interspecific variation
6%
plant community
6%
dairy farm
6%
cereal
6%
Medicine & Life Sciences
Agriculture
53%
Soil
40%
Zea mays
32%
Soybeans
22%
Food
16%
Ecosystem
16%
Fungi
15%
Farms
13%
Biomass
11%
Climate
10%
Sustainable Development
10%
Water
10%
Seed Bank
9%
Education
9%
Secale
9%
Crop Production
8%
Cultural Evolution
8%
Ecotype
8%
Seeds
7%
Mycobiome
7%
Microbiota
7%
Growth
7%
Rubiaceae
6%
Volatilization
6%
Climate Change
6%
Fabaceae
6%
Gene Editing
5%
Learning
5%
Nitrogen
5%
Teaching
5%
Nutrients
5%
Economics
5%
Nitrates
5%
Weather
5%
Curriculum
5%
