Keyphrases
Nitrogen Status
100%
Spring Maize
100%
Nitrogen nutrition Index
100%
Active Optical Sensing
100%
GreenSeeker
57%
Vegetation Index
57%
N Status
57%
Normalized Difference Vegetation Index
57%
Leaf Area Index
42%
Aboveground Biomass
42%
Plant N Uptake
42%
Status Diagnosis
42%
Newly Established
28%
Northeast China
28%
Response Index
28%
GreenSeeker Sensor
28%
Critical N Dilution Curve
28%
Management Strategy
14%
Nitrogen N
14%
N Rate
14%
Top-N Recommendation
14%
Sensor-based
14%
Sensor Measurement
14%
Diagnostic Accuracy
14%
Farm Conditions
14%
N Supply
14%
Accuracy Rate
14%
Diagnostic Approach
14%
Plant Nitrogen Concentration
14%
Recommendation Algorithm
14%
Efficient Technology
14%
Ratio Vegetation Index
14%
Precision N Management
14%
Crop N Status
14%
Jilin Province
14%
Non-destructive Estimation
14%
Vegetation Ratio
14%
Active Optical Sensor
14%
Reliable Indicator
14%
Four-Field
14%
Agricultural and Biological Sciences
Spring
100%
Vegetation Index
100%
Normalized Difference Vegetation Index
80%
Leaf Area Index
60%
Aboveground Biomass
60%