Earth & Environmental Sciences
maize
84%
tillage
81%
harvest
70%
production system
58%
farm
52%
crop residue
47%
fossil
46%
wind power
45%
inoculation
44%
prairie
41%
greenhouse gas emissions
41%
soil
38%
life cycle
38%
energy
38%
energy balance
37%
soil organic matter
37%
soil property
34%
fungus
34%
greenhouse gas
33%
fertilizer
33%
hydrology
33%
ammonia
31%
restoration
29%
soybean
28%
aggregate size
24%
removal
23%
global warming
23%
nitrogen
23%
hydraulic property
20%
colonization
18%
organic carbon
15%
rate
14%
alternative energy
12%
pregnancy
12%
fossil fuel
12%
recolonization
11%
infiltration
10%
effect
9%
physical property
8%
environmental performance
8%
supply and demand
8%
treatment residue
8%
seed
8%
soil depth
8%
root colonization
7%
heating
7%
productivity
7%
environmental footprint
7%
sandy loam
7%
Business & Economics
Renewable Energy
90%
Energy Supply
89%
Life Cycle
84%
Energy
68%
Planning
63%
Nitrogen Fertilizer
63%
Greenhouse Gas Emissions
62%
Swine
58%
Energy Balance
56%
Ammonia
54%
Corn
53%
Wind Power
50%
Supply Chain
46%
Greenhouse Gases
44%
Bioenergy
34%
Heating
34%
Logistics
29%
Farm
27%
Global Warming
27%
Fossil Fuels
20%
Biofuels
20%
Alternative Fuels
17%
Costs
17%
Sustainable Energy
16%
Capital Equipment
16%
Life Cycle Assessment
16%
Gilts
14%
Economic Incentives
14%
Scenarios
12%
Co2
10%
Expenditure
9%
Rural Communities
9%
Cultural Practices
8%
Fertilizer
8%
Labor
8%
External Costs
8%
Modeling
7%
Demand and Supply
7%
Manure
7%
Environmental Performance
7%
Substitute
6%
Survey Data
6%
Cooling
6%
Natural Gas
6%
Pork
6%
Agriculture & Biology
stover
100%
tillage
61%
hydrology
52%
roadsides
48%
corn stover
44%
prairies
43%
crop residues
42%
suckling
40%
piglets
39%
soil properties
39%
drinking water
38%
sows
38%
mycorrhizal fungi
37%
corn
37%
soil organic matter
36%
heat stress
33%
soil
30%
farms
26%
soil organic carbon
22%
heat
21%
no-tillage
20%
soybeans
18%
soil hydraulic properties
18%
clay loam soils
17%
inoculum
16%
farrowing
16%
infiltration rate
15%
Glycine max
14%
litter weight
12%
Zea mays
12%
posture
11%
video recording
10%
litters (young animals)
10%
strip tillage
9%
water stable soil aggregates
9%
discing
9%
drinking
9%
deep tillage
9%
landscape restoration
8%
weaning
8%
soil depth
8%
plows
7%
carbon sinks
7%
sandy loam soils
7%
vegetation
7%
breathing
7%
duration
6%
ecological succession
6%