Keyphrases
Nitrate
100%
Illinois
100%
Subsurface Drainage
100%
Nitrate-N
100%
Drainage Flow
100%
River Drainage
100%
Tile Drain
83%
Nitrate Concentration
66%
Mean Concentration
50%
Effluent
33%
Management System
33%
Application System
33%
Crop Management
33%
Nitrate-N Concentration
33%
Nitrogen Application
33%
Well-defined
16%
No Significant Difference
16%
Seasonal Variation
16%
Management Practices
16%
Sampling Location
16%
Maximum Permissible Concentration
16%
Nitrogen Fertilizer
16%
Fertilizer
16%
Grass
16%
Crop Fields
16%
N Loss
16%
Row-crop Agriculture
16%
Tile Flow
16%
Tiling Systems
16%
Nitrate Load
16%
Seasonal Cycle
16%
Manure Application
16%
Tillage Management
16%
Drinking Water Reservoir
16%
Crop Management Systems
16%
Watershed Size
16%
Minimum Concentration
16%
Drain Discharge
16%
Field Management
16%
River Station
16%
Plant Application
16%
Agricultural and Biological Sciences
Watersheds
100%
Subsurface Drainage
100%
Agricultural Science
20%
Spring
20%
Drinking Water
20%
Nitrogen Fertilizer
20%
Crop Management
20%
Water Reservoir
20%