Relationship between RI (determined at harvest) and the nitrogen use efficiency observed over time, Experiment 502, 1971-2005.

The relationship between RI NDVI and the final N recommendation using SBNRC is listed above.

The Ramped N Reference Strip will allow researchers to refine mid-season fertilizer N rates by knowing exactly what the RI was (NDVI Max, divided by NDVI Min), and by integrating the area under the curve over the distance included within the ramp (currently set at 150 feet, but than can be altered to increased rate change intervals).

Click on the Question to See the VIDEO.

Tom Denker, Farmer near Enid, OK
Question: What is the benefit of GreenSeeker Technology?
Question: What do you think about OSU working with private industry to make this type of technology available to producers?
Question: Would you like to add anything?

Jerrel Powell, Farmer near Council Hill, OK
Question: How have you used GreenSeeker Technology?
Question: Why is Nitrogen Important?
Question: What would you like to tell producers in OK about GreenSeeker Technology?

Response Index Picture Page

Response Index (Defined)

Managing N Fertilizer Using a N-Rich-Strip: Projected Profitability

Reducing N fertilizer field losses by managing spatial and temporal response variability (GVJ_Chem_Society)

• Net Revenue Estimates