Bioreactor field day set for August 23rd near Brooklyn

July 31, 2018

AMES, Iowa—Iowa Learning Farms, in partnership with Poweshiek County Soil and Water Conservation District, Iowa Soybean Association, Poweshiek County Farm Bureau and Iowa Corn, will host a bioreactor field day on Thursday, August 23rd from 5:30-7:30pm at Roger and Louise Van Ersvelde’s farm, rural Brooklyn. The event is free and open to the whole family and includes a complimentary meal.

Edge of field practices like wetlands, saturated buffers and bioreactors are key to reducing nitrate loss from agricultural land in Iowa. Through a natural biological process microorganisms living in the systems use the incoming nitrate for respiration and reduce the nitrate levels from incoming tile drainage. Together with in-field practices like cover crops and no-tillage, these practices will help reach the Iowa Nutrient Reduction Strategy goals.

Field day attendees will have the opportunity to view and learn about the bioreactor installed on the Van Ersvelde farm as part of their conservation and land stewardship goals. A demonstration by the Iowa Learning Farms Conservation Station On The Edge trailer will discuss what is happening beneath the surface in bioreactors and saturated buffers. Keegan Kult, Iowa Soybean Association, will discuss the site selection process and technical design of bioreactors.  Landowner Roger Van Ersvelde will share information about the design, installation, and performance of  his bioreactor. Little Bear Creek Watershed Improvement Project Coordinator, Mindy Sieck, will provide an update on the project and share opportunities to get involved.

The field day will be held at Roger and Louise Van Ersvelde’s farm located at 3864 200th St., Brooklyn. From I-80, take exit 197 toward V18 Rd/Brooklyn. Travel north on V18 for 2 miles. Turn right to head east on Old 6 Rd for 2.5 miles. Turn left to head north on 200th St. The farm is located on the west side of the road and will be marked with a field day sign. The field day is free and open to the whole family, but reservations are suggested to ensure adequate space and food. To RSVP and for any reasonable accommodations please contact Mindy Sieck at 641-528-4115 ext. 3 or, by Thursday, August 16, 2018.  

Additional sponsors for the field day include: Monsanto and USDA/NRCS.

For more information about Iowa Learning Farms, visit

Established in 2004, Iowa Learning Farms is building a Culture of Conservation by encouraging adoption of conservation practices. Farmers, researchers and ILF team members are working together to identify and implement the best management practices that improve water quality and soil health while remaining profitable. Partners of Iowa Learning Farms include the Iowa Department of Agriculture and Land Stewardship, Iowa State University Extension and Outreach, Leopold Center for Sustainable Agriculture, Iowa Natural Resources Conservation Service, and Iowa Department of Natural Resources (USEPA section 319).


Liz Juchems

Conservation Outreach Specialist



Mindy Sieck

Little Bear Creek Watershed Improvement Project Coordinator

641-528-4115 ext 3