Keyphrases
US Midwest
100%
Nitrogen Fertilizer
100%
N Leaching
100%
Environmental Footprint
100%
Fertilizer Regulation
100%
Economic Cost
40%
N Loss
40%
Policy Scenarios
40%
Environmental Impact
20%
Simulated Dataset
20%
Leaching
20%
Multiple Strategies
20%
Relative Effectiveness
20%
N Input
20%
Government Regulation
20%
Point Source
20%
Exponential Increase
20%
Leaching Loss
20%
Agricultural Systems
20%
Water Quality
20%
Crop Yield
20%
Productivity Loss
20%
N Rate
20%
N Management
20%
Reduction Targets
20%
Potential Trade
20%
Economic Optimum N Rate
20%
N Balance
20%
Economic Loss
20%
Maize Yield
20%
N Use
20%
Voluntary Adoption
20%
Reduction Effect
20%
Source Reduction
20%
Government Payments
20%
Fertilizer Use Efficiency
20%
Conservation Programs
20%
Crop Productivity
20%
Actionable Information
20%
Agriculture Impacts
20%
Political Costs
20%
High Severity
20%
Economic Concepts
20%
Policy Efforts
20%
Process-based Crop Model
20%
Pollution Control Cost
20%
Environmental Impact Cost
20%
Voluntary Reduction
20%
Crop Profitability
20%
Society Welfare
20%
Agricultural and Biological Sciences
Environmental Impact
100%
Nitrogen Fertilizer
100%
Crop Models
100%
Conservation Programs
100%
Pollution Control
100%
Environmental Impact of Agriculture
100%
Earth and Planetary Sciences
Environmental Impact
100%
Crop Yield
100%
Farming System
100%
Environmental Impact of Agriculture
100%
Pollution Control Cost
100%
Engineering
Environmental Impact
100%
Environmental Footprint
100%
Economic Loss
50%
Pollution Control
50%
Source Reduction
50%