Projects

2018

New Technologies to Reduce Barriers to Implementation of Nutrient Loss Reduction Strategies

Investigators: Michael Castellano, Liang Dong, Peter Kyveryga

Quantifying Hotspots of Nitrate and Dissolved Phosphorus Losses from Cropped Depressions and Impacts at the Catchment Scale

Investigators: Steven Hall, William Crumpton, Matthew Helmers

Quantifying the Effects of BMPs on Sediment and Phosphorus Delivery to a Range of Eastern Iowa Rivers

Investigators: Keith Schiling, Matthew Streeter, Calvin Wolter

Understanding Farmer and Landowner Decision-Making and Message Preference Concerning Conservation Practice Adoption in the Clear Creek Watershed

Investigators: Mary Losch, Andrew Stephenson

Using the Agricultural Conservation Planning Framework (ACPF) to Optimize the Allocation of Scarce Conservation Funding

Investigators: John Tyndall , Adriana Valcu-Lisman , Yongjie Ji , Emily Zimmerman

2017

Amounts and Forms of Dissolved Phosphorus Lost with Surface Runoff as Affected by Phosphorus Management and Soil Conservation Practices

Investigators: Antonio Mallarino, Mazhar U. Haq

Baseline Assessment of Geisler Farm Site: Collection of Pre-BMP Monitoring Data

Investigators: Keith Schilling, Chris Jones, David DeGeus, Anthony Seeman, Jake Geisler

Delivery-Scale Evaluation and Modeling of Nutrient Reduction Practices

Investigators: Chaoqun Lu, William Crumpton, Matt Helmers

Does Quantity and Quality of Tile Drainage Water Impact In-stream Eutrophication Potential? Evidence from a Long-term Biofuel Cropping Systems Experiment

Investigators: Marshall McDaniel, Mriganka De, Michael Thompson, Matt Liebman, Matthew Helmers

Impacts of Cover Crops on Phosphorus and Nitrogen Loss with Surface Runoff

Investigators: Antonio Mallarino, Matthew Helmers, Richard Cruse, John Sawyer, Dan Jaynes

Improving the Effectiveness of Conservation Programs through Innovative Reverse Auctions and Sensible Enrollment Restrictions

Investigators: Wendong Zhang, Gregory Howard

Limiting Nitrogen Immobilization in Cover Crop Systems

Investigators: Michael Thompson, Matt Liebman, Matthew Helmers

Successful Voluntary Watershed Improvement Projects: Do Short-Term Adoption and Outreach Lead to Attitude Changes and Long-Term Sustainable Practice Adoption?

Investigators: Jacqueline Comito, Jamie Benning

Total Phosphorus Loads in Iowa Rivers and Estimation of Stream Bank Phosphorus Contribution

Investigators: Keith Schilling, Calvin Wolter, Tom Isenhart

Water Quality Evaluation of Prairie Strips Across Iowa

Investigators: Matthew Helmers, Lisa Schulte Moore, Matt Liebman

Woodchip Bioreactors for Improved Water Quality

Investigators: Michelle Soupir, Natasha Hoover, Thomas Moorman, Thomas Isenhart

2016

Building Cost-Effective Prairie for Multiple Nutrient Reduction Practices

Investigators: Justin Meissen, Ashley Kittle

Establishment and Monitoring of Saturated Buffers

Investigators: Thomas Isenhart, Dan Jaynes

Evaluating the Nutrient Processing Capacity of Roadside Ditches

Investigators: Keith Schilling, Matthew Streeter, Laura Jackson, Marty St. Clair

Evaluation of Measurement Methods as Surrogates for Tile-Flow Nitrate-N Concentrations

Investigators: John Sawyer, Matthew Helmers

Impacts of Prairie Pothole Hydrology on Field-Scale Losses of Nitrogen and Dissolved Phosphorus

Investigators: Steven Hall, Amy Kaleita, Michelle Soupir

Improving the Capacity to Detect Load Reductions

Investigators: Michael Castellano, Sotirios Archontoulis, Bill Crumpton, Matthew Helmers, Chris Jones, Fernando Miguez, Keith Schilling

Land Tenure and Nutrient Management Practices: Identifying Economic Barriers and Incentives for Landowners and Tenants to Meet Growing Soil and Water Conservation Needs

Investigators: Wendong Zhang, Alejandro Plastina

Phosphorus Contributions from Eroding Iowa Stream Banks

Investigators: Peter Moore, Thomas Isenhart, John Thomas, Keith Schilling, Calvin Wolter, John Kovar, Richard Schultz, Jason Palmer

Potential Monomethylmercury Production in Bioreactors and Wetlands Intercepting Elevated Nitrate Loads in Iowa

Investigators: William Crumpton, Michelle Soupir, Casey Judge

Woodchip Bioreactors for Improved Water Quality

Investigators: Michelle Soupir, Natasha Hoover, Thomas Moorman, Thomas Isenhart

2015

Conservation Practices Inventory for Select Iowa HUC 12 Watersheds

Investigators: Robin McNeely, Josh Obrecht, Amy Logan, Calvin Wolter, Adam Schnieders

Cover Crops Influence Nutrient Cycling, Yield and Diseases of Corn and Soybean

Investigators: Alison Robertson, Leonor Leandro, Andrew Lenssen, Tom Kaspar, Tom Moorman

Evaluation of Stacked Conservation Practices on Phosphorus and Sediment Loss

Investigators: Richard Cruse, Daryl Herzmann, Brian Gelder, Amy Kaleita, Robin McNeely, Amy Logan, Thomas Isenhart, Calvin Wolter

Identifying and Quantifying Nutrient Reduction Benefits of Restored Oxbows

Investigators: Keith Schiling, Nathan Young, Christopher Jones, Keegan Kult, Karen Wilke

Impacts of Cover Crops on Phosphorus and Nitrogen Loss with Surface Runoff

Investigators: Antonio Mallarino, Matthew Helmers, Richard Cruse, John Sawyer, Dan Jaynes

Linking Nutrient Reduction Practices with Biomass Energy: Quantifying Thermal Energy Demand and Supply Capacity for Representative Farms in Eastern Iowa

Investigators: Laura Jackson, Kamyar Enshayan

Quantification of Nutrient Reduction Practices Benefits from the Hillslope to the Watershed Scale

Investigators: Antonio Arenas, Keith Schilling, Larry Weber

Quantifying Temporal and Spatial Variability in NO3-N Leaching Across Iowa

Investigators: Sotirios Archontoulis, Matthew Helmers, Michael Castellano, Peter Kyveryga, Adam Kiel, Roger Wolf

Reducing Nutrient Losses While Increasing Farm Profit Through Precision Conservation

Investigators: Andy VanLoocke, Emily Heaton, Dave Muth, Lisa Schulte Moore, Sotirios Archontoulis, Ingrid Gronstal Anderson

Scientific and Technological Tools to Implement Iowa Nutrient Reduction Strategy

Investigators: Doug Schnoebelen, Larry Weber, Adam Ward

Utilizing Beef Stocker Cattle to Enhance the Value of Cover Crops

Investigators: Mahdi Al-Kaisi, David Kwaw-Mensah

Water Quality Performance of Prairie Strips

Investigators: Matthew Helmers, Todd Sutphin, Anthony Seeman

Woodchip Bioreactors for Improved Water Quality

Investigators: Michelle Soupir, Natasha Hoover, Tom Moorman, Thomas Isenhart

2014

Developing Remote Sensing Protocols for Inventory of Nutrient Management Practices

Investigators: Brian Gelder, Sarah Porter, Amy Kaleita, Calvin Wolter, Richard Cruse, Thomas Isenhart, Mark Tomer, Peter Wolter, David James

Developing Remote Sensing Protocols for Inventory of Permanent Vegetative Practices

Investigators: James Giglierano, Amy Logan, Sarah Porter, David James, Thomas Isenhart

Drainage Water Quality Impacts of Current Future Agricultural Management Practices

Investigators: Matthew Helmers, Michelle Soupir, Antonio Mallarino, Carl Pederson

Measuring the Effectiveness of Stacked Nutrient Reduction Practices

Investigators: Keith Schilling, Wren Almitra, Doug Schnoebelen

Modeling of Nitrate Loads and Concentrations in the Raccoon River

Investigators: Gabriele Villarini, Christopher Anderson, Christopher Jones, Keith Schilling

Nutrient Trading in Iowa: A Pilot Study in the Catfish Creek Watershed

Investigators: Larry Weber, Chad Drake

Phosphorus Loss from Ephemeral Gully Formation and Sediment Transport

Investigators: Richard M. Cruse, Eric Hurley, Antonio Mallarino, Matthew Helmers

Prairie Seed Mixes for Contour Buffer Strips: On-Farm Demonstration and Workshops

Investigators: Daryl Smith

Scientific and Technological Tools to Implement Iowa Nutrient Reduction Strategy

Investigators: Doug Schnoebelen, Larry Weber, Adam Ward

Stream Nitrate Trends Affected by Farming Practices in the Walnut Creek Watershed

Investigators: David Peters, Dan Jaynes

2013

Bioreactor Research and Assessment of Woodchip Tile Denitrification Bioreactors: Optimal Design/Performance and Experimental Bioreactor Installation and Study

Investigators: Michelle Soupir, Roger Wolf

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