The College of Agriculture and Life Sciences Department at Cornell University have created a internet tool to more successfully assess necessary rates of nitrogen application throughout the season. A decent amount of land use history is necessary, such as soil type, prior crop, and date of nutrient applications. However, mid-season soil sampling is not necessary. One of the great advantages of Cornell’s Adapt-N management, is that it takes into account weather variations that affect nitrogen mineralization specific to farm location. You can find out more here and sign up to use this management system.
The following images are from the Adapt-N webpage’s “About” tab.
Figure 1. The influence of early season weather on optimal N rates.
Figure 2. Risking greater losses with pre-plant application.
Figure 3. Risking greater losses with pre-plant application.
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