History of Optical Sensing at Oklahoma State University, 1991 to 2001
Nitrogen Use Efficiency, Nitrogen Fertilizers,nitrogen algorithms, NUE, Nitrogen and the Environment
 Trimble Manufacturer of the GreenSeeker Sensor
On October 15, 2001, Oklahoma State University entered into a formal Agreement with NTech Industries to build variable nutrient applicators for cereal production.  President and CEO of NTech, John Mayfield signed the formal agreement with OSU Administrators. 
 
Nitrogen Use Efficiency, Nitrogen Fertilizers,nitrogen algorithms, NUE, Nitrogen and the Environment
N Tech Industries  Trimble Manufacturer of the GreenSeeker Sensor