|Mead, NE RC Experiment (1983-1969), Conducted by Professor Robert A. Olson|
Relationship between the estimated responsiveness to applied N or response index (RI-NDVI) from sensor readings (RI-NDVI = NDVI in the N Rich strip divided by the NDVI in the farmer practice) and the response index determined at harvest (Grain yield in the N rich strip plot divided by the N Rich strip in the farmer practice), 2004 Corn Trials. The responsiveness to N can be determined from mid-season sensor measurements collected between V8 and V9.
Relationship between INSEY (NDVI divided by the # of days from planting to sensing) collected at V8, and final corn grain yield.
Corn grain yields in the check (0 kg N/ha) and the N adequate or N rich (180 kg N/ha) plots, and the associated response index (grain yield N rich, divided by the grain yield in the check) from 1969 to 1983 in the RC-RS long-term corn experiment conducted by Professor R.A. Olson near Mead, Nebraska.
Yield level (180 lb N/ac) versus the response index (yield at 180 kg N/ha divided by yield at 0 kg N/ha), Mead, NE 1969-83
Optimum N rate (N uptake max yield minus N uptake check, divided by .5) versus yield level, 180 kg N/ha, Mead, NE, 1969-83.