Validation of Emerging Nitrogen Management Technologies for Corn in Wisconsin.

Matt Kortbein SASES Agronomic Study Nitrogen is a known significant nutrient in the growth and development of corn plants. However, knowing the correct amount of N needed in different environments and to ensure different results is a necessary knowledge with large ramifications across the agricultural industry. While other researchers have performed studies to test soil capacity and N needs at different stages, no work has been done using EONR imagery to view N uptake throughout the growing season, and compare the data to yield information in the harvest season. Going forth with the study, our main objective will be to begin to develop a dataset to evaluate the usefulness of the CO2 Burst soil health test to predict N need, and validate Crop Canopy Sensing as a method for determining a sidedress N rate. The setup of the trial involves an environment where a previous crop has been in corn and soybeans with a relatively even soil series and drainage class. It will take place in a randomized block with 3 or 4 replications. Following the trial, I hope to gain more information that will lead our industry to be able to give better and more accurate recommendations for N applications at multiple growing stages.