AMES, Iowa – Do you ever have questions about a water quality research story published by the Iowa Nutrient Research Center?
Much of the information INRC shares through news articles and seminars originate with findings in peer-reviewed research publications. Most of these publications are saved in a digital repository available to the public, hosted by the Iowa State University Library.
“This is an excellent resource that is probably greatly underutilized,” said INRC Director Matt Helmers.
“As part of INRC funded projects, researchers develop reports and scientific articles that explain the nitty-gritty details of projects, including technical methods and nuanced findings that are often more complex than a news release can convey,” Helmers said.
As of December 2025, more than 100 publications are available in the INRC digital repository, documenting findings from studies completed over the last decade. The authors represent Iowa State, the University of Iowa, the University of Northern Iowa and other collaborators in nonprofits, agencies and private businesses. Their work highlights advances in knowledge that often guide future implementation of conservation practices and technologies.
The topics range widely from studying the effectiveness of edge-of-field practices, to sociological studies of landowner attitudes, pest management for cover crops, pilot studies of new geographic information system tools and more.
Not all INRC-supported research is captured here, points out INRC Assistant Director Kay Stefanik, but the repository reflects a major portion of INRC projects.
A sample of publications added this year includes:
- Quantifying the impact of Iowa's flood-mitigation reservoirs on sediment and nutrient loss
- The optimum nitrogen fertilizer rate for maize in the U.S. Midwest is increasing
- Interactions between crop insurance and conservation practices: Insights from analysis of farm surveys and farm program
- The design and testing of a field operations visualizer
- Not ready for a long-term commitment? Analyzing temporal variability in cover crop adoption
INRC invites you to explore the digital repository and dig into a topic that intrigues you related to nutrient reduction and Iowa water quality.
“I hope people will use the repository to learn more about the breadth of INRC-supported research and look for answers to questions they may have long wanted to know,” Helmers said. “If it leads to more questions, that’s not a surprise. That’s what often results from the scientific process.”
##
Contacts
Kay Stefanik, Iowa Nutrient Research Center, 515-294-2525, kcstefan@iastate.edu,