Virtual Field Day November 5: Exploring Impacts of Cover Crops, Tillage and N-Inhibitors on Crop Performance and Water Quality

October 22, 2020

AMES, Iowa—Iowa Learning Farms, in partnership with the Iowa Nutrient Research Center, and Conservation Learning Group (CLG), is hosting a free virtual field day exploring impacts of cover crops, tillage and nitrogen-inhibitors on crop performance and water quality on Thursday, November 5th at 1 p.m. CST. Join us for a live conversation with Matt Helmers, Director of the Iowa Nutrient Research Center, Emily Waring, Graduate Research Assistant, and Carl Pederson, Agricultural Specialist in Agricultural and Biosystems Engineering at Iowa State University.

Since 1989, research focused on the effects of nitrogen (N) management on crop production and tile drainage water quality has been conducted in north-central Iowa near Gilmore City. In 2010, the treatments were changed to examine the impacts of cereal rye winter cover crop vs. no rye (with and without tillage), conventional tillage vs. no-till, and timing of N-application and use of nitrification inhibitor. Through extensive data collection and monitoring the team is measuring the impact of these practices on nitrogen and phosphorus loss and crop yield.

“This long-term dataset allows us to examine the impacts of conservation practices under a range of weather conditions. We have measured cover crops as an effective practice in reducing N loss from the cropping system,” says Helmers.

To participate in the live virtual field day at 1:00 pm CDT on November 5th, click this URL: or visit and click “Join Live Virtual Field Day”. 

Or, join from a dial-in phone line:

    Dial: +1 312 626 6799 or +1 646 876 9923

    Meeting ID: 914 1198 4892

The field day will be recorded and archived on the ILF website so that it can be watched at any time. The archive will be available at

Participants may be eligible for a Certified Crop Adviser board-approved continuing education unit (CEU). Information about how to apply to receive the credit (if approved) will be provided at the end of the live field day.

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, USDA Natural Resources Conservation Service, and Iowa Department of Natural Resources (USEPA section 319) and GROWMARK, Inc.



Liz (Juchems) Ripley

Conservation Outreach Specialist