April 1, 2013 – March 31, 2015
This project is led by Dr. Chris Gillard, University of Guelph, Ridgetown Campus
- Studies over four years at the Huron Research Station indicate a linear response to nitrogen fertilizer up to 70 kg N ha-1 in some years (unpublished data). The response was consistent over all three market classes evaluated in some years, while in other years the response was evident in only some or none of the market classes.
- In 2012, a preliminary study was conducted to better understand how nitrogen fertilizer use interacts with soil health. Eight on-farm sites were selected to demonstrate the technology to growers and validate treatments using a combination of small plot and field scale experiments. These studies detected differences in soil health between sites, and some relationships between soil health and nitrogen use were observed. However, further research is needed to develop a proper understanding of these relationships.