New farming practices transform soil health

By Blake Jackson

On a cool fall evening, nearly 30 people gathered for a Field Day in northeastern Wisconsin, hosted by the Wisconsin Demonstration Farm Network, to explore innovative agricultural technology implemented by Kinnard Farms.

Lee Kinnard, a member of the Door-Kewaunee Demonstration Farms Network (DK Demo Farms) and Peninsula Pride Farms, has introduced a groundbreaking system that combines a denitrifying bioreactor and a Phosphorus Removal System (PRS) on the same tile system. This collaboration with the USDA Natural Resources Conservation Service (NRCS) and the United States Geological Survey (USGS) makes Kinnard Farms one of the first in the nation to use this paired technology.

For the first time, the USGS will monitor water quality at three stages: as it exits the field, after passing through the PRS, and after leaving the bioreactor. This detailed data collection aims to assess the system’s overall impact on reducing nutrient loss. Initially installed in 2018 with funding from the Great Lakes Restoration Initiative (GLRI) and NRCS support, the bioreactor has been a key step in improving water quality.

Kinnard emphasizes the importance of protecting local water resources, such as Green Bay and Lake Michigan, by adopting regenerative practices like cover cropping and no-till farming. However, he believes incorporating tile systems is essential for addressing nutrient runoff. The combination of the bioreactor and PRS has the potential to significantly reduce dissolved phosphorus, offering a transformative solution for the region.

The Wisconsin Demonstration Farm Network supports farmers in achieving conservation goals by providing technical assistance and promoting practices that enhance soil health and water quality. Events like Field Days allow farmers to share experiences and learn from one another. Barry Bubolz, NRCS Wisconsin GLRI Field Coordinator, notes that stacking conservation practices, such as cover crops and no-till farming, amplifies their effectiveness.

Looking ahead, over 20 phosphorus removal systems funded through GLRI grants will be installed across northeastern Wisconsin, addressing both tile and surface water runoff. Edge-of-field monitoring at multiple sites will provide valuable insights into the effectiveness of these systems. Farmers at the Field Day expressed optimism about the potential of these technologies to foster sustainable farming and protect regional water resources.

Photo Credit: usda