Corn & Small Grain Management

Corn Nitrogen Algorithm Development

Calibration and development of VA corn algorithm

A series of over 40 N rate/response studies were conducted to develop and calibrate the relationship between YPI and yield, some of which is shown below.

Large scale strip trials were conducted to validate algorithm performance. Results from eleven sites are below. STD is the fixed rate the farmer would have applied, based on management experience and yield goal. GS is the rate prescribed by the Virgina algorithm.