Sara Winnike McMillan, Iowa State University, Antonio Arenas, Iowa State University, Peter Moore, Iowa State University , Keith Schilling, Iowa Geological Survey, Johnathon Swanson, Polk County Conservation , Amanda Brown, Polk County Conservation

Watershed Scaling Effects Measured Via Nested High Frequency Sensors

Investigators:

Marty St. Clair, University of Iowa

2023

An integrated assessment framework to evaluate conservation practices and environmental and economic benefits: A case for central Iowa

Investigators:

Phillip Gassman, Tássia Mattos Brighenti , Yongjie Ji

Can adjustments to nitrogen rates reduce corn yield drag and disease implications following a cereal rye cover crop? 2023

Investigators:

Mark Licht, Marshall McDaniel, Alison Robertson, Fernando Marcos, Rashelle Matthiesen, Peter O’Brien

Co-benefits and possible unintended consequences of restoring wetlands for nutrient reduction

Investigators:

Charlie Loewen

Decoding and leveraging the farmer messenger effect to accelerate the adoption of critical edge-of-field conservation practices

Investigators:

Jacqueline Comito, Wendong Zhang

Effect of winter cereal rye cultivar selection and herbicide choice on seedling disease, pathogen populations, nitrogen dynamics and growth and yield of corn

Investigators:

Alison Robertson

Equipping conservation practitioners with quantitative estimations of sediment and P reduction from BMPs

Investigators:

Eduardo Luquin, Emily Zimmerman, Brian Gelder, Daryl Herzmann, Richard Cruse

IIHR water quality research plan

Investigators:

Marty St. Clair

Linking agricultural practices to water quality improvement: The importance of spatial scale in accurately characterizing nonpoint source nutrient loads in Iowa stream systems

Investigators:

David Green, William Crumpton, Sara McMillan, Tom Isenhart, Peter Moore

Quantifying nutrient load reduction practices and export at field and landscape scales

Investigators:

Keith Schilling, Matthew Streeter, Elliot Anderson, Joe Honings

2022

Assessing the effectiveness of spatial and temporal separation of a cereal rye cover crop from corn on nutrient reduction and corn yield.

Investigators:

Alison Robertson , Rashelle Matthiesen, Peter L. O’Brien

Benefits of winter cereal rye cultivar selection in mitigating corn yield drag

Investigators:

Alison Robertson , Jyotsna Acharya

Evaluating the effectiveness of stacked practices: Utilizing modified blind inlets at terrace sites for N and P load reductions

Investigators:

Matthew Streeter , Keith Schilling

Evaluating the relation of phosphorus to turbidity during high flow events in western Iowa rivers to improve phosphorus load estimates

Investigators:

Keith Schilling

Extending saturated buffers to additional landscape positions

Investigators:

Tom Isenhart , Keith Schilling

IIHR Hydroscience and Engineering Work plan (2022-2023)

Investigators:

Chris Jones

Landowners matter too: Accelerating adoption of in-field and edge-of-field nutrient reduction practices through better-engaged landowners

Investigators:

Chad Hart , Wendong Zhang

Quantifying co-benefits of water quality conservation practices for wildlife of greatest conservation need in Iowa

Investigators:

Adam Janke, Emily Zimmerman, Karen Kinkead, Tyler Harms

Sociological water quality research: quantifying factors at multiple scales that influence farmers to shift from being potential to actual adopters of conservation practices

Investigators:

Suraj Upadhaya , J. Arbuckle, Lisa Schulte Moore

Spatial models for scaling optimal nutrient management research from plot to field and watershed scales

Investigators:

Bradley Miller, Mark Licht, Marshall McDaniel

Spatially delineated carbon credit potential and implied nutrient reduction co-benefit: An assessment with integrated ecological and economic modeling framework

Investigators:

Hongli Feng, Crystal Lu, Paige Frautschy, Wendong Zhang, Zhushan Du

Unlocking the bioreactor microbiome for nutrient management and water quality

Investigators:

Adina Howe, Steven Hall, Michelle Soupir, Jaejin Lee, Lindsey Hartfiel

2021

Building cross-scale predictability of land-to-aquatic nitrogen loads in agriculture-dominated watersheds

Investigators:

Chaoqun Lu, William G. Crumpton, Thomas M. Isenhart, David Green

Can adjustments to nitrogen rates reduce corn yield drag and disease implications following a cereal rye cover crop? 2021

Investigators:

Mark Licht, Marshall McDaniel, Alison Robertson, Fernando Marco , Jyotsna Acharya

Continued assessment of corncobs as an alternative carbon source to enhance bioreactor performance for improved water quality

Investigators:

Michelle Soupir, Tom Isenhart, Ji Yeow Law, Natasha Hoover

Developing design criteria to test a new saturated waterway conservation practice

Investigators:

Keith Schilling, Antonio Arenas-Amado

Furthering our understanding of the interaction of cereal rye allelochemicals with Pythium species and their impact on corn in the cereal rye-corn production system

Investigators:

Alison Robertson , Jyotsna Acharya

Identifying the barriers and strategies to accelerate adoption of critical edge-of-field conservation practices: A farmer-centric integrated research & extension approach

Investigators:

Jacqueline Comito , Wendong Zhang

IIHR Hydroscience and Engineering Work plan (2021-2022)

Investigators:

Chris Jones

Influence of bank stabilization on floodplain sediment and phosphorus storage

Investigators:

Peter L. Moore , Thomas Isenhart