Farm Progress

Managing nitrogen loss from Iowa landscapes is focus of upcoming webinar.

October 9, 2018

1 Min Read
STAYING PUT: Keeping nitrogen in fields and out of creeks and rivers is the topic of the Oct. 17 ILF webinar.

Iowa Learning Farms will host a webinar on managing nitrogen losses from hydric soil landscapes at noon Oct. 17.

The leaching of nitrate and emissions of nitrous oxide, a potent greenhouse gas, are key environmental impacts of Corn Belt agricultural systems. Iowa State University assistant professor Steven Hall, a specialist in ecology and biology, is leading a research group that studies the biological and geochemical processes that control the cycling of organic matter and nutrients across the plant-soil-water-atmosphere continuum. 

One of their focus areas is the interactions across that continuum in former prairie potholes. These occasionally flooded hydric soils in topographic depressions can contribute disproportionately to nitrogen losses at the landscape scale, suggesting the promise of management interventions that specifically target these features.

Target soil, crop management practices
One of their focus areas is the interactions across that continuum in former prairie potholes. These occasionally flooded hydric soils in topographic depressions can contribute disproportionately to nitrogen losses at the landscape scale, suggesting the promise of using management interventions and practices that specifically target these areas.

“Crop nitrogen-use efficiency, farm profitability and environmental impacts of nitrogen loss are intimately connected,” Hall says. “Innovative management of cropped hydric soils could yield disproportionate environmental and economic benefits.”

Webinar archived
The Iowa Learning Farms webinar series takes place on the third Wednesday of the month. To watch, go to iowalearningfarms.org/page/webinars and click the link to join the webinar shortly before noon Oct. 17 to download the Zoom software and log-in option. The webinar will be recorded and archived on the ILF website for watching at any time.

Source: Iowa Learning Farms

 

Subscribe to receive top agriculture news
Be informed daily with these free e-newsletters

You May Also Like