Cornell's Adapt-N: A tool for determining corn's nitrogren needs during the season

Today, I listened in to the excellent overview during an in-depth training session run by the Adapt-N team at Cornell.​ The team made a compelling case for the many benefits of in-season nitrogen application. Specifically, in-season applications are a key to responding to constantly-changing nitrogen needs of a particular field. This was perhaps best explained by a graph showing the increasing predictability of a crop's nitrogen need as the season progresses. The underlying rationale is that, with each day further into the season, there's less chance for significant weather events that will lead to nitrogen loss.