greenseeker tm variable rate applicator equipment and applications
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GreenSeeker TM Variable Rate Applicator Equipment and Applications. GreenSeeker TM Variable Applicator: Equipment and Applications. How the GreenSeeker TM works NDVI GreenSeeker TM RT200 & RT500 Corn and other applications. Variable Rate Nozzle System. Decision Making - PowerPoint PPT PresentationTRANSCRIPT
GreenSeekerTM Variable Rate Applicator
Equipment and Applications
GreenSeekerTM Variable Applicator: Equipment and Applications
• How the GreenSeekerTM works
• NDVI• GreenSeekerTM RT200
& RT500• Corn and other
applications
Sensor-BasedNitrogen Management
Variable RateNozzle System
Directionof Travel
Computer andSensor
Assembly
Decision MakingAnd Agronomic Strategy
Plant
GreenSeekerTM Sensor Light Detection and Filtering
Detection ofReflected
NIR and RED+Sun
Target
NIR and REDModulated
Illumination
Direction
Sensor Function
Lightgeneration
Light signal
Lightdetection
Valve settingsCalculate NDVILookup valve settingApply valve settingSend data to UI
“Sensor”Valves
andNozzles
GREENSEEKERTM Applicator
• Sense and treat each 2 ft by 2 ft area
• Apply one of seven fertilizer rates based on the crops yield potential
• Accomplish this while driving 15 mph
• Operate day or night
• Provide the capability to detect and treat other plant problems
• Record and georeference sensor data for GIS analysis
• Sense and spot spray weeds (current Patchen technology)
Tri-valve Set for Varying Rate• 8 Stepped rates
– OFF to 7x
• Treats 24”x 24” area applying the target rate on 85% of that area
Valve Rate
1x 2x 4x Total
0 0 0 0
1 0 0 1
0 2 0 2
1 2 0 3
0 0 4 4
1 0 4 5
0 2 4 6
1 2 4 7
1x 2x 4x
User Interface/Central Computer
Flow ControllerPower Supply
Pressure Controller
Flow Control Valve
Flow Meter and Pressure Sensor
Wavelength (nm)
Ref
lect
ance
(%
)R
efle
ctan
ce
(%)
0.25
0.5VisibleVisible Near InfraredNear Infrared
450 550 650 750 850 950 1050500 600 700 1000900800
0.00
Plant ReflectancePhotosyntheticPotential
Measure of living plant cell’s ability to reflect infrared light
Normalized Difference Vegetative Index - NDVI
• Calculated from the red and near-infrared bands
• Equivalent to a plant physical examination
• Correlated with:– Plant biomass– Crop yield– Plant nitrogen– Plant chlorophyll– Water stress– Plant diseases– Insect damage
NRich Strip for Determining Benefit of Added Fertilizer
NRich Strip
Field RateSensor data mapped and images vectorized with SST “Toolbox” GIS software
IKONIS Satellite
Image of a Wheat Field
Near Covington,
Oklahoma
NDVI Image of the NRich Strip
Bottom Formerly in Alfalfa
Eroded Hillside
N-Rich 140 lb/acN-Rich 140 lb/ac
Farm Rate 70 lb/acFarm Rate 70 lb/ac
44 bu/ac farm 44 bu/ac farm
Alfalfa Field Yield Alfalfa Field Yield bu/acbu/ac
IKONIS Satellite
Image of a Wheat Field
Near Covington, Oklahoma
NDVI Map
Wheat - Hennessey, Ok
NDVI Map
As Applied Map
0.77 to 0.85 NDVI &
52 to 59 lb/ac N
0.2 to 0. 3 NDVI &
10 to 17 lb/ac
IKONIS False Color Imagery Cassidy, OK P Strip and 2 NRich Strips
NRich Strips
No P Strip
NDVI Cassidy, OK - Wheat P Strip and 2 NRich Strips
No P Strip NRich
Strips
GreenSeeker RT500
GreenSeeker RT200
RT200 and RT 500 Specifications
• Estimated Price $15,000 for 60 ft applicator
• Senses and treats boom width by 20 to 30 feet
• Utilizes existing variable rate sprayer controllers and valves
• Combination Sense and Treat, and Sense, Predict, and Treat strategies
• Reaction time limited by existing controller and valves
• Estimated Price $60,000 for 60 ft applicator
• Senses and treats each 2 ft by 2 ft area
• Uses NTech high speed and resolution controller and valves
• Sense and Treat strategy
• Reaction time < 0.1 s
RT200 RT500
Sensing and Treatment Scale and Strategy
2 ft by 2 ft
30 ft by 60 ft
Sensed Area
Treated Area
Sense, Predict, and Treat StrategySense, Predict, and Treat Strategy
High Resolution Sense and Treat Strategy
RT200 RT500
Sensing and
Treatment Scale
RT200 and RT 500 Specifications
• 6 sensors on 60+ ft boom• Can readily be mated with
existing dry fertilizer and anhydrous ammonia applicators
• Fast installation with minimal modifications
• System intended for fertilizer only
• 30 sensor on 60 ft boom• Existing dry fertilizer
applicators cannot be used with this system
• System custom installed on each manufacturer’s sprayer /boom
• Can detect and spray weeds in fallow/no-till as well as apply fertilizer
• System can be used for other crops and materials
RT200 RT500
•Sense and treat every 2 plants•Sense and treat every 2 plants
Hagie Sprayer - Corn
Weed Spraying with GreenSeeker Applicator
GreenSeekerTM N-Fertilizer Handheld Optical Sensor
• The same active lighting optical sensor used on the variable rate fertilizer applicator
• Optically measures plant biomass, total nitrogen in the crop, and plant stress
• Can sample scan a wheat field (or other crop)
• Data can use to calculated response index for added nitrogen fertilizer
Questions