Co-benefits and possible unintended consequences of restoring wetlands for nutrient reduction Jan 2025


Researchers created secondary data organization and repository file containing all identifiable and relevant public data on Iowa water quality concerns. Assessed and chose relevant data; created ARC GIS file and analyses compiling and layering data onto map of Iowa. Read more about Rural Iowa Communities' Water Quality Awareness, Engagement and Policy Preferences Jan 2025
Following initial funding in August, during the fall semester, the project team developed two interview protocol guides: one for farmers who continued using cover crops between 2020 and 2022; and one for farmers who discontinued cover crops during this time. The investigators applied for ISU Institutional Review Board (IRB) approval, which was granted in December. The investigators then developed a participant recruitment protocol using the Iowa Farm and Rural Life Poll. Read more about Incentivizing Conservation: Understanding Opportunities and Barriers That Influence Iowa Farmers’ Decisions to Adopt Nutrient Management Conservation Practices Over Time Jan 2025
Administration of the online survey began the first week of July 2024. We sent out to 7,500 farmers and landowners, hoping for a 16% response rate. We got a 10.9% response rate and 764 completed (or partially completed but usable) surveys. Data has been cleaned up and analysis is beginning. We met in mid-December to have a first look at the data and discuss findings. Very excited about what we are seeing in the survey. There are no concerns about results based on fixing several language issues and the treatments seem to have had an impact. Read more about Decoding and leveraging the farmer messenger effect to accelerate the adoption of critical edge-of-field conservation practices Jan 2025
FINAL REPORT
The research findings which occurred as a result of this grant include ongoing efforts to develop a statewide nutrient budget, evaluation of the effectiveness of edge-of-field practices at a small watershed level, evaluation of new nutrient reduction practices and development of new cyberinfrastructure techniques to improve data management and communication. These areas are described in more detail in the publications listed below. Read more about IIHR water quality research plan Dec 2024
FINAL REPORT
The key question for this project was to explore the impact of CR biomass accumulation on the corn yield drag. To do that, researchers planned to evaluate the effect of N at planting on: (i) corn seedling disease (ii) soil N dynamics, and (iii) corn growth, development and yield. Read more about Can adjustments to nitrogen rates reduce corn yield drag and disease implications following a cereal rye cover crop? Nov 2024
We completed a first analysis and presentation of Objective 1 and presented the findings at the national meeting of The Wildlife Society. We focused the analysis on regional Species of Greatest Conservation need identified by midwestern states involved in the Midwestern Landscape Initiative. This list includes species with widespread concern across the region. Our analysis classified these species into habitat guilds, which indicated that 70% of vertebrates stand to benefit from agri-environmental conservation schemes. Read more about Quantifying co-benefits of water quality conservation practices for wildlife of greatest conservation need in Iowa Dec 2024
This is the first article in an INRC series highlighting partnerships that help advance water quality research.
Read the others:
NGOs can play important roles to expand capacity, outreach
Collaboration is worth the investment
Read more about Water quality research is 'team sport': Partnerships with private sector help get ideas on the ground
For our ecological simulation, we built on Cao et al. (2023, citation provided at the end), we have conducted some additional simulations to examine the N loading reduction potential under alternative management practices (e.g., reduced fertilizer use, chemical fertilizer replaced with manure, etc.) We have some preliminary results. Read more about Spatially delineated carbon credit potential and implied nutrient reduction co-benefit: An assessment with integrated ecological and economic modeling framework Jul 2024
All of the treatments for the new survey were created: four videos (male, female farmers with and without wildlife) and five infographics (male, female farmers with and without wildlife, and traditional extension publication).
We completed the new online survey design and questionnaire and determined a larger sample to ensure adequate response. The survey went out the first week of July. The survey will continue to be administered through summer up to harvest. We will analyze data and arrange for presentations, writing of the report and possible journal articles. Read more about Decoding and leveraging the farmer messenger effect to accelerate the adoption of critical edge-of-field conservation practices Jul 2024