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The Nitrogen Cycle

This video is a combined presentation by Mike Castellano, an Iowa State assistant professor of agronomy, and Matt Helmers, an Iowa State agricultural and biosystems engineering professor. Castellano presents information on the soil nitrogen cycle. Helmers discusses drainage and nitrate loss.

CREP Wetlands with Dr. William Crumpton

Dr. William Crumpton explores a Conservation Reserve Enhancement Program wetland and discusses the role they play in nutrient reduction. A conversation with INRC Director Matt Helmers, for a Conservation Learning Lab project led by the Iowa Learning Farms. More

Conservation Station On The Edge Demonstration

INRC Director Matt Helmers narrates a short video demonstrating nutrient-reduction processes for a saturated riparian buffer and a bioreactor for an Iowa Learning Farms Conservation Station On The Edge Demonstration. 

Nitrate Removal in a Saturated Riparian Buffer

Learn more about nitrate removal in a saturated riparian buffer from Dr. Tom Isenhart, a professor in the Department of Natural Resource Ecology and Management at Iowa State University, one of the developers of this emerging conservation technology.

Wonders of Iowa Wetlands - May 2021

This webinar, which aired May 25, 2021, kicks off the series “Profiles in the Wonders of Iowa’s Wetlands” created by the Iowa Nutrient Research Center and Iowa State University Extension and Outreach. Presenters Kay Stefanik, INRC Assistant Director, and Adam Janke, wildlife specialist for Iowa State University Extension and Outreach and an assistant professor of natural resource ecology and management. They introduce the series and review types of wetlands found in Iowa, their functions and ecology, and the beneficial goods and services they can provide.