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Improving the flexibility of the Iowa Nutrient Reduction Strategy
INRC Assistant Director Kay Stefanik shares information about the Iowa Nutrient Reduction Strategy (INRS) N-Load model and recent revisions made to to allow for a finer scale in estimating nitrate loss.
Researchers show weather variability impedes ability to assess trends in Iowa’s water quality
AMES, Iowa – When can we expect to see reduced levels of nutrients in our water if we make positive changes on the landscape? New Iowa State University research shows how complicated it is to give a sound answer to that question.
The research is featured in a recent article in the peer-reviewed Journal of Environmental Quality, co-authored by Ph.D. student Gerasimos J. Danalatos, Professor Michael Castellano and Associate Professor Sotirios V. Archontoulis, in Iowa State’s Department of Agronomy, and Calvin Wolter, a Geographic Information Systems analyst with the Iowa Department of Natural Resources.
Iowa Nutrient Research Center announces funding for new water quality projects
AMES, Iowa — The Iowa Nutrient Research Center at Iowa State University announces funding of just over $1.4 million to support a dozen new water quality and nutrient management projects for 2022-2023.
Research helps develop remote sensing as tool to assess conservation implementation
Solving the complex puzzle of dissolved phosphorus loss from farmland
AMES, Iowa — A research project by Iowa State University soil scientists provides new insight into the complex picture of phosphorus loss from farmland and evidence proving phosphorus runoff is often underestimated.
Iowa State University agronomist predicts the future through modeling
Trammo teams with Iowa State University and Hart Family to improve nitrogen management and boost crop yield
By Madeleine Resener, GeoPols
Nitrogen, one of the most plentiful gases in our environment, is both a friend and foe to our planet and to ourselves.
It makes up 45% of the nutrients used in fertilizers to grow corn, wheat, and soybeans. That’s why it is essential to crop output. However, nitrogen can be a pollutant – especially when it seeps into water supplies through agricultural run-off or leaching.
Researchers have been exploring various techniques to reduce the nitrogen that ends up in lakes, streams, and other bodies of water.