O K L A H O M A S T A T E U N I V E R S I T Y Precision Agriculture Oklahoma State University NTech Industries Redball

O K L A H O M A S T A T E U N I V E R S I T Y Plant Reflectance Wavelength (nm) Reflectance (%) Visible Near Infrared Photosynthetic Potential Measure of living plant cell’s ability to reflect infrared light Indicator of Available Chlorophyl

O K L A H O M A S T A T E U N I V E R S I T Y GreenSeeker TM Sensor Light Detection and Filtering Detection of Reflected NIR and RED +Sun Target NIR and RED Modulated Illumination Direction

O K L A H O M A S T A T E U N I V E R S I T Y

Nitrogen RAMPS

O K L A H O M A S T A T E U N I V E R S I T Y Fall 2006, 586 Ramps Fall 2007, 512 Ramps, > 2000 Nrich

O K L A H O M A S T A T E U N I V E R S I T Y 70: RT200 >500 Greenseeker 100 dealers 150 units in inventory

O K L A H O M A S T A T E U N I V E R S I T Y ArgentinaAustralia MexicoCanada IndiaPhilippines ChinaTurkey UzbekistanZimbabwe Kenya, Uganda, Ethiopia

O K L A H O M A S T A T E U N I V E R S I T Y Value to Oklahoma 5,000,000 acres of wheat $10.00 minimum savings per acre on N fertilizer (RAMP, SBNRC, VRT) 50% adoption = $25,000,000/year

O K L A H O M A S T A T E U N I V E R S I T Y Variable Rate Technology Treat Temporal and Spatial Variability Returns are higher but require larger investment