SAES-422 Multistate Research Activity Accomplishments Report
Sections
Status: Approved
Basic Information
- Project No. and Title: SERA 46 : Framework for Nutrient Reduction Strategy Collaboration: The Role for Land Grant Universities
- Period Covered: 10/11/2024 to 02/04/2026
- Date of Report: 04/27/2026
- Annual Meeting Dates: 02/04/2026 to 02/05/2026
Participants
In-person: Matt Helmers (IA)(Co-Chair), Bin Peng (IL). On-line Attendees: Shannon Speir (AR), Mike Daniels (AR), Beth Baker (MS), Paul Davidson (IL), Amanda Gumbert (KY), Jenny Seifert (WI), Ken Genskow (WI), Jane Frankenberger (IN), Forbes Walker (TN), Kay Stefanik (IA), Lindsay Pease (MN), and Eric Norland (NIFA). Other Attendees on Wednesday (Julie Harrold, Kori Blitch, Brett Galland, Jonathan Jimenez, Rebecca Atkins, David Scheuer, Natalie Segrest, Janette Marsh, Olivia Vargo, Lisa Duriancik, Angelina Freeman, Rachel Buzzeo, Katie Flahive, Corrie Layfield, Amanda Reed, Matt Drewitz, Stacie Wassell, Adam Schienders, Susan Kozak, Matt Lechtenberg, Trevor Sample, Joe Bonnell, Karl Getsch.
AGENDA
February 4, 2026 - https://iastate.zoom.us/j/97818329585?pwd=EsBoOk5D3fPXbkAZ8tPGEXaD4rLzxu.1&from=addon
3:00pm Introductions
3:15pm SERA-46 Communications Strategy – Jenny Seifert
3:45pm SERA-46 Research Needs Survey and Update of Activities – Shannon Spier
4:15pm HTF Research Needs Committee Update – Julie Harrold
5:00pm Adjourn
February 5, 2026 - U.S. EPA EPA William Ruckelshaus Conference Center
Join: https://teams.microsoft.com/meet/2979294934684?p=6aM4Z6d71O61OW29NK
Meeting ID: 297 929 493 468 4
Passcode: bN352oc6
8:30am Introductions and Review SERA-46 objectives – Matt Helmers
9:00am Communications tactics workshop – Jenny Seifert
- Land grant university toolkit focus group (30 min)
- Audience survey (30 min)
10:00am Research discussion, early career workshop (45 min) – Shannon Speir
10:45am Break
11:00am Research/Extension collaboration opportunities (45 min)
11:45pm Reporting (15 min) – Matt Helmers
12:00pm Adjourn
Meeting Summary from Wednesday February 4, 2026.
Quick Recap:
The meeting focused on updates and discussions related to the SERA 46 and Hypoxia Task Force Coordinating Committee workshop. Participants shared their research and communication strategies, including the development of an ambassador's toolkit, a state of the science slide deck, an audience survey, and a podcast initiative. Shannon highlighted the progress on research priorities and upcoming workshops, while Julie discussed the need to identify new co-chairs for the Research Needs Workgroup. The group also explored potential new research needs, including the impact of phosphorus from stream bank erosion and the effectiveness of conservation practices in animal agriculture. Participants discussed the importance of collaboration and communication among states, universities, and other stakeholders to address nutrient reduction strategies effectively.
Summary
SERA 46 Workshop on Water Quality
The meeting began with a technical check-in to ensure audio and video connections were functioning properly for all participants. The group then introduced themselves, with representatives from various state agencies, the EPA, and other organizations attending. The meeting was identified as the SERA 46 and Hypoxia Task Force Coordinating Committee workshop, and participants discussed their roles and responsibilities in water quality and conservation efforts.
Collaborative Science Initiatives Discussion
The meeting began with introductions from various participants, including representatives from NOAA, USDA, universities, and state environmental agencies. Rachel Buzzeo emphasized the importance of collaboration and knowledge-sharing among attendees. The group discussed upcoming topics, including communication strategies, nutrient science, and research needs. They also mentioned the need to find a co-chair to work with Julie on the research needs workgroup following Dave Wall's retirement. The meeting set the stage for more in-depth discussions in the following day's executive session.
EPA Communications Strategy Update
Jenny Seifert from the University of Wisconsin-Madison Division of Extension provided an update on the communications strategy for the EPA cooperative agreement. She outlined three main goals: increasing understanding of hypoxia challenges, encouraging conservation practice adoption, and fostering support for nutrient loss reduction strategies. Jenny presented four fledgling communication tactics: an ambassador's toolkit, a state of the science slide deck, an audience survey, and a podcast through the One Good Idea platform. She sought feedback on these tactics, particularly regarding the ambassador's toolkit and audience survey. Rachel Buzzeo inquired about the ANPC-LGU collaboration tactic, asking for more details on its basin-wide approach and potential outcomes to support state needs.
Hypoxia Task Force Communication Strategy
The group discussed the development of a slide deck and survey about hypoxia task force goals and collaboration in the basin. Jenny explained the survey's purpose as a needs assessment to understand perceptions and identify communication needs. Rachel suggested using state agricultural associations and conservation groups as potential audiences for the survey. The group also discussed using the Hypoxia Task Force newsletter to communicate information about SERA 46 and other state activities.
Gulf Hypoxia Communication Strategies
The group discussed strategies for communicating information about Gulf hypoxia, with Jenny emphasizing the importance of understanding stakeholder perceptions to frame effective messages. Rachel suggested including SERA 46 content in the quarterly newsletter, which typically contains three issues per year. The team considered alternative formats for distributing information, such as email newsletters, and discussed the need to make content digitally accessible. Matt shared insights from surveys and interviews with local government officials, highlighting the importance of connecting hypoxia issues to local concerns before explaining broader impacts.
Research Priorities and Collaboration Update
Shannon presented updates on research agenda development work, focusing on nutrient reduction strategies. She highlighted progress on review and perspective papers, workshops, and building a researcher database. The Early Career Confluence Workshop, held virtually due to weather, involved 35 researchers discussing priority areas and professional development. Key outcomes included refining the top 7 research priorities, identifying the need for scaling and translation across regions, and establishing a framework for addressing priorities incrementally. A white paper on workshop outcomes is being developed, with opportunities for co-authorship.
Sensor Workshop and Research Planning
Shannon discussed the upcoming sensor-based workshop in February, which will bring together 25 water quality sensor and machine learning experts to analyze data across the Mississippi River Basin. She outlined plans to continue refining the top seven research priorities through additional feedback and to replicate the approach with more established researchers. Shannon also introduced a researcher database to facilitate cross-state collaborations and discussed ongoing literature reviews. The group discussed the potential to connect early career researchers with state contacts and to share information about upcoming events and opportunities.
Research Priorities and Membership Gaps
The Research Needs Workgroup discussed the relevance of previously identified research needs from 2020, with members agreeing that several needs, particularly 8 and 9, should be elevated to higher priority due to new information and ongoing state initiatives. The group identified gaps in their current membership, particularly in animal agriculture research, and discussed the need to explore new research topics including stream bank erosion phosphorus contributions and BMP effectiveness for grazing management. The conversation ended with logistics for an upcoming networking event and the following day's schedule, which included a states caucus, executive session, and public session at EPA's East building.
Meeting Summary from Thursday February 5, 2026.
Jenny Seifert led a discussion on the communications strategy associated with the EPA Cooperative Agreement. This included development of a slide deck that can be used by all SERA-46 members. Discussed additional collaboration with stakeholders. The group is planning for more discussions and joint events with the Agriculture Nutrient Policy Council (ANPC)
Shannon Speir provided an update on the research focus of the EPA Cooperative Agreement and the Early Career Workshop. There was great attendance at the workshop despite having to shift to virtual option. An update was provided on the papers coming from the research work groups. Shannon reiterated there was still time to sign up for future papers being planned. A paper on cover crop effectiveness is nearing submission as is a paper on watershed-scale conservation.
Agreement to set up recurring quarterly meetings of the entire SERA-46 groups with more frequent meetings of specific focus groups.
Accomplishments
Outputs and Outcomes
The integrated and collaborative works of SERA-46 have produced multiple significant outputs:
The Early Career Confluence Workshop was held in January 2026 (due to weather conditions had to pivot to virtual) - with ~40 early career researchers from the Mississippi River basin attending. They presented their research and gave feedback on basin-wide research agenda. The participation was beyond Land Grant University system which broadened the impact of the event.
The Basin Breakthrough Seminar was held in three webinar sessions: upper, middle, and lower basins. The zoom-based event allowed 9 early career scientists to present 15–20-minute talks on their current research for ~35-40 participants per session. The three sessions were hosted in Fall 2025 and paved the way for future events and workshops.
A Mississippi River Basin focused water quality sensor workshop was held in February 2026 - 28 participants from across the world (in person in Fayetteville). Outcomes = 1 commentary and 6 research papers
Two manuscripts on cover crop effectiveness and watershed-scale conservation, respectively, are nearing submission.
Developed a basin-wide communications strategy to improve coordinated communications efforts in support of the Hypoxia Task Force goals, which included organizing stakeholder interviews and committee meetings to generate input.
Presented at Gulf Hypoxia Task Force meeting on research agenda development.
Representatives of NGOs working in the Mississippi River basin connected around strategies for increasing nature-based solutions (NBSs) on the landscape.
Technical report: Gumbert, A. and Seifert, J. 2025. Recommendations for a peer learning network for nature-based solutions in the Mississippi River basin
In 2025, organized and facilitated six occurrences of Life Hacks Over Lunch, a virtual peer learning meet-up series for watershed coordinators in cooperation with The Confluence for Watershed Leaders. (https://watershedleaders.org/peer-learning/life-hacks-over-lunch-a-meet-up-series-for-watershed-professionals/)
In 2025, organized and facilitated nine occurrences of Good Idea Shop Talks, a virtual peer learning meet-up series for farmers with a focus on conservation practice adoption and implementation. (https://goodideafarm.org/shop-talks/)
8 new videos and one podcast produced by the Good Idea Mini-grant recipient teams, added to One Good Idea platform
Two blog posts that share insights from Good Idea Mini-grant recipient evaluations to help increase adoption of edge-of-field practices:
Key Ingredients for Edge-of-Field Practice Implementation Include Relationships and Flexible Funding (https://watershedleaders.org/key-ingredients-for-edge-of-field-practice-implementation-include-relationships-and-flexible-funding/)
Selling Edge-of-Field Practices: Farmers’ Perspectives on What Works (https://watershedleaders.org/selling-edge-of-field-practices-farmers-perspectives-on-what-works/)
Curriculum to train farmers in key leadership skills for watershed management: Seifert, J., Bonnell, J., Nardi, A., Simon, E., Gertz, K., & Smith, M. (2025). Skills for Building Farmer Networks for Conservation. https://watershedleaders.org/resources/skills-for-building-farmer-networks-for-conservation/
Good Idea Mini-Grants, a program of One Good Idea funded by FFAR and Walton Family Foundation, awarded funds to seven teams of farmers and farm advisors for edge-of-field practice implementation, resulting in seven edge-of-field conservation practices installed and seven videos produced by the teams to help other farmers learn from their experiences.
New resource collection about watershed engagement programming for watershed and conservation professionals on The Confluence for Watershed Leaders. A collaboration with University of Minnesota and Environmental Initiative.https://watershedleaders.org/resources/skills-for-building-farmer-networks-for-conservation/
A Communications Strategy to Coordinate Nutrient Loss Reduction Efforts in the Mississippi River Basin. 2025. Seifert, J., Genskow, K., Gumbert, A., Hayes, M.P., Peng, Bin. https://www.sera46.org/uploads/1/3/5/1/135182488/basin-wide_communications_strategy_2025_final.pdf
Project team members explored two peer-learning formats (virtual World Café, virtual hackathon) and semi-structured interviews with watershed professionals to capture essential elements necessary to build a successful peer learning network around nature-based solutions; the ultimate goal of a peer learning network is to increase the utilization of nature-based solutions in the Mississippi River basin for ecosystem resiliency.
The Iowa Learning Farms Webinar Series held 50 webinars in 2025. Of these 50 webinars there were 15,962 combined live and archived views. A total of 653 Certified Crop Advisor continuing education units were provided to individuals participating in the live webinars. Participatns represented 35 states and the District of Columbia, Puerto Rico, Canada, Germany, and Israel. Most of these webinars are related to nutrient reduction topics.
In collaboration with the University of Tennessee Beef and Forage Center, a flood recovery team was formed to coordinate research and extension efforts to respond to efforts to recover from the flooding caused by Hurricane Helene in eastern TN. This included conducting numerous site visits to affected farms, collection and analysis of the sediments left on the fields after the floods, germination and greenhouse studies, a successful field day attended by over 200, the establishment of numerous field trials and demonstrate sites and the development of several grants for funding efforts for this important work. This work was recognized by Gamma Sigma Delta by receiving the team award for Tennessee.
Planned and facilitated a farm field day in Central Kentucky to share conservation practice success.
Three conservation practices were installed on one KY farm to reduce erosion in the livestock production system.
Short-term outcomes - SERA-46 has increased awareness of strategies to reduce nitrogen and phosphorus loading to their local surface waters. For example:
From the Iowa Learning Farms evaluation, 99% of attendees that completed an evaluation indicated they had gained knew knowledge from the webinar. In addition, 66% of those completing an evaluation indicated they networked with others about conservation ideas.
Medium-term outcomes - SERA-46 has changed behaviors to reduce nitrogen and phosphorus loading to their local surface waters by emphasizing social science factors in educational methods to increase conservation adoption focused on "farmer to farmer" exchanges.
Stronger peer learning network for farmers doing conservation in the Mississippi River Basin through the Good Idea Shop Talks meet-up series for farmers.
From our Good Idea Shop Talk events, 82% (40) of farmer survey respondents agreed they felt more motivated to do conservation and 81% (40) were more willing to experiment with different ways to do conservation as a result of their participation. When asked about gaining confidence and about feeling less concerned about barriers to implementing conservation practices, 71% (35 respondents) agreed. In terms of intentions, 53% (26 respondents) agreed they learned about a conservation practice they plan to adopt, while 67% (33 respondents) agreed they plan to expand their use of conservation practices as a result of ideas shared in the Shop Talks. Also, most respondents (78%) agreed that they felt more connected to a community of conservation-minded farmers because of their participation.
Long-term outcomes - SERA-46 has changed the conditions that influence nitrogen and phosphorus loading to their local surface waters and the Gulf of Mexico by advancing innovation, demonstrating effectiveness, and facilitating adoption of practices.
The Good Idea Mini-grant Program enabled seven farmers to install edge-of-field practices on their operations. It also improved collaboration between farmers and farm advisors to implement edge-of-field practices.
Impacts
- From our Good Idea Shop Talk events, 82% (40) of farmer survey respondents agreed they felt more motivated to do conservation and 81% (40) were more willing to experiment with different ways to do conservation as a result of their participation.
- The Good Idea Mini-grant Program enabled seven farmers to install edge-of-field practices on their operations. It also improved collaboration between farmers and farm advisors to implement edge-of-field practices.
- From the Iowa Learning Farms evaluation, 99% of attendees that completed an evaluation indicated they had gained knew knowledge from the webinar. In addition, 66% of those completing an evaluation indicated they networked with others about conservation ideas.
Grants, Contracts & Other Resources Obtained
Grants, Contracts and other resources
Saha, D., Walker, F., Adotey, N., and S. Jagadamma. Biochar and ANVOL Synergies to Reduce Fertilizer Needs, Enhance Nitrogen Stewardship, and Improve Soil Health in Tennessee Corn Systems. Tennessee Corn Promotion Board. $44,341
Walker, F., Pedreira, B., McIntosh, D., Wszelaki A. and S. Hawkins. Research on managing/renovating agricultural fields along the Nolichucky River after hurricane Helene. Tennessee Department of Agriculture. Agricultural Resources Conservation Fund (ARCF) $364,848
Pedreira, B., Walker, F., Fidan, E., Ludwig, A., Hawkins, S., Rampold, S., Smith, A., Wszelaki, A. Revegetation Efforts on Hurricane Helene Affected Farmland and Riparian Zones. Governor's Response & Recovery Fund. $919,711.
Baker, B., Hill, M., "In-Stream Water Quality Monitoring Support," Sponsored by B.F. Smith Foundation dba Delta F.A.R.M., Local, $30,267.00. Awarded, Specific MOA. (September 1, 2025 - January 31, 2027).
Gumbert, A. and Seifert, J. Peer Learning Network for Watershed Leaders in the Mississippi River Basin. Walton Family Foundation, $100,000; 01/2024-05/2025.
Seifert, J., Baker, B., Gumbert, A., and Pratsch, S. Novel Farmer-to-Farmer Learning Approaches to Cultivate a Culture of Conservation in the Mississippi River Basin. Foundation for Food and Agriculture Research (FFAR), $262,199; 07/2023-06/2026.
Hayes, M (PI), and Wang, C., Louisiana Pollution Prevention for Food and Agricultural Rural Manufacturers (P2-FARM) Program, Environmental Protection Agency (EPA FY 2024 – FY 2025 Pollution Prevention Grant Program Funded by the Bipartisan Infrastructure Law, $350,000; 05/2025 - 4/2027.
Publications
Publications
Bisangwa, E., Richwine, J.D., P. D. Keyser, Ashworth, A.J., D. M. Butler, Shrestha, U., and F. R. Walker. 2025. Native warm-season grasses show limited response to phosphorus and potassium. Agronomy.
Okai, S., X. Yin, L. A. Duncan, D. C. Yoder, D. Saha, F. R. Walker, S. Logwood, J. Akuaku, and N. Adotey. 2025. In vitro evaluation of enhanced efficiency nitrogen fertilizers using two different soils. Soil Systems 9 (3), 80.
Adotey, N., S. Okai, Blair, R., D. C. Yoder, X. Yin, L. A. Duncan, F. R. Walker, and D. Saha. 2025. Soil Properties that Affect Ammonia Volatilization Loss from Urea Ammonium Nitrate. https://utia.tennessee.edu/publications/wp-content/uploads/sites/269/2025/05/W1322.pdf.
Keadle Emery, A. L. Wszelaki, B. Pedreira, D. McIntosh, and F. R. Walker. 2025. Know Before You Plant: How to Check Soil, Manure or Compost for Possible Chemical Contamination from Herbicides. W1332. UT Extension publication. Extension publication.
Hawkins, S. A., and F. R. Walker. 2025. Series Guide for Tennessee Agricultural Producers Applying Biosolids: Concentration Limits for Heavy Metals. UT Extension Publication, W1365.
Hawkins, S. A., and F. R. Walker. 2025. Series Guide for Tennessee Agricultural Producers Applying Biosolids: Class A vs Class B Pathogen Safety Standards. UT Extension Publication, W1366.
Hawkins, S. A., M. A. McClure, J. McNeal, N. Adotey, L. A. Duncan, F. R. Walker, and G. T. Tabler. 2025. A Row Crop Producers Guide to Applying Poultry Litter to Soybean at Planting. UT Extension Publication, W1292.
Tabler, G. T., S. A. Hawkins, F. R. Walker, A. Rius, T. Thornton, Y. Liang, J. Moon, and J. Urrutia. 2025. Challenges and benefits of managing and utilizing poultry litter inside and outside the broiler house. UT Animal Science Extension Publication No. W 1329 July.
Lunga, D., Brye, K., Mulvaney, M., Daniels, M., de Oliveira, T., Baker, B., Bradford Jr, T., Arel, C. (2025). Cover crop effects on greenhouse gas emissions and global warming potential in furrow-irrigated corn in the Lower Mississippi River Valley. Atmosphere, 16(5), 498. https://doi.org/10.3390/atmos16050498
Lunga, D., Brye, K., Mulvaney, M., Daniels, M., de Oliveira, T., Baker, B., Bradford Jr, T., Arel, C. (2025). Time-series analysis of soil respiration in furrow-irrigated corn with and without cover crop in the Lower Mississippi River Basin. Climate, 13(1), 232. https://doi.org/10.3390/cli13110232 Extension Publications:
Baker, B., Entsminger, E. D., Hill, M., Reed, V., Czarnecki, J. (2026). Soil Health and Conservation: Making Connections for Management (pp. 8). Mississippi State, MS: Mississippi State University Extension, Mississippi State, Mississippi. Publication P4162. Extension
Yang, J., Peng, B., Wang, Y., Ma, Z., Zhao, Q., Liu, L., Jia, X., Kumar, V., Pan, M., Jia, M. and Li, X., 2026. Knowledge-guided graph machine learning for spatially distributed prediction of daily discharge and nitrogen export dynamics. Water Research, p.125613.
Zhao, Q., Peng, B., Ma, Z., Jia, M., McIsaac, G.F., Robertson, D.M., Saad, D.A., Warner, R.E., Wu, X., Zhou, Q. and Guan, K., 2025. How do Hydrological Variability and Human Activities Control the Spatiotemporal Changes of Riverine Nitrogen Export in the Upper Mississippi River Basin?. Environmental Science & Technology, 60(1), pp.1028-1039.
Ma, Z., Guan, K., Peng, B., Zhou, W., Grant, R., Tang, J., Sivapalan, M., Pan, M., Li, L. and Jin, Z., 2025. Soil oxygen dynamics: a key mediator of tile drainage impacts on coupled hydrological, biogeochemical, and crop systems. Hydrology and Earth System Sciences, 29(22), pp.6393-6417.
Ahmed, M., and Hayes, M., Waste to Resource: A Review of Nutrient Removal from Agricultural Runoff using Recycled Byproducts. Journal of Agriculture and Food Research. 2025. 102371. https://doi.org/10.1016/j.jafr.2025.102371
Moni, E., and Hayes, M. Unlocking Soil Health and Surface Water Quality Management: A Review on Fluorescent Dissolved Organic Matter (fDOM) in Agricultural Systems. Journal of Agricultural and Food Chemistry . 2026. 74(3). https://doi.org/10.1021/acs.jafc.5c13863
Hayes, M, Bush, E., and Nolen, R., Be on the Team to Think Downstream: Salinity. Fact Sheets. Lead Author. December 2024. Pub. # P3975-G. Article Link
Hayes, M, Bush, E., and Nolen, R., Be on the Team to Think Downstream: pH. Fact Sheets. Lead Author. December 2024. Pub. # P3975-F. Article Link
Hayes, M, Bush, E., and Nolen, R., Be on the Team to Think Downstream: Nitrogen. Fact Sheets. Lead Author. December 2024. Pub. # P3975-E. Article Link
Hayes, M, Bush, E., and Nolen, R., Be on the Team to Think Downstream: Pesticides. Fact Sheets. Lead Author. December 2024. Pub. # P3975-D. Article Link
Hayes, M, Bush, E., and Nolen, R., Be on the Team to Think Downstream: Fecal Coliform/Enterococcus. Fact Sheets. Lead Author. December 2024. Pub. # P3975-C. Article Link
Hayes, M, Bush, E., and Nolen, R., Be on the Team to Think Downstream: Temperature. Fact Sheets. Lead Author. December 2024. Pub. # P3975-B. Article Link
Hayes, M, Bush, E., and Nolen, R*, Be on the Team to Think Downstream: Dissolved Oxygen. Fact Sheets. Lead Author. December 2024. Pub. # P3975-A. Article Link
Hayes, M., and Bush, E., Be on the Team to Think Downstream: Color. Fact Sheets. Lead Author. January 2026. Pub. # P3975-O. Article Link
Hayes, M., and Bush, E., Be on the Team to Think Downstream: Sulfate. Fact Sheets. Lead Author. January 2026. Pub. # P3975-N. Article Link
Hayes, M., Bush, E., and Nolen, R., Be on the Team to Think Downstream: Total Dissolved Solids. Fact Sheets. Lead Author. January 2026. Pub. # P3975-M. Article Link
Hayes, M., Bush, E., and Nolen, R., Be on the Team to Think Downstream: Total Suspended Solids. Fact Sheets. Lead Author. January 2026. Pub. # P3975-L. Article Link
Hayes, M., Bush, E., and Nolen, R., Be on the Team to Think Downstream: Turbidity. Fact Sheets. Lead Author. January 2026. Pub. # P3975-K Article Link
Hayes, M., Bush, E., and Nolen, R., Be on the Team to Think Downstream: Algae. Fact Sheets. Lead Author. January 2026. Pub. # P3975-J. Article Link
Hayes, M., Bush, E., and Nolen, R., Be on the Team to Think Downstream: Phosphorus. Fact Sheets. Lead Author. January 2026. Pub. # P3975-I. Article Link
Hayes, M., Bush, E., and Nolen, R., Be on the Team to Think Downstream: Metal. Fact Sheets. Lead Author. January 2026. Pub. # P3975-H. Article Link
Gumbert, A., Byers, E., and Messer, T. 2025. HENV-207 Kentucky Wetlands. University of Kentucky Cooperative Extension Service, Lexington, KY. https://publications.mgcafe.uky.edu/sites/publications.ca.uky.edu/files/Wetland-lowliteracy8-page_0.pdf
Barker R.W., Helmers M.J., Mcdaniel M.D. (2025) Cover crops can mitigate no-tillage-induced labile phosphorus stratification. Soil Science Society of America Journal 89. DOI: ARTN e70064 10.1002/saj2.70064.
Baum M.E., Sawyer J.E., Nafziger E.D., Castellano M.J., Mcdaniel M.D., Licht M.A., Hayes D.J., Helmers M.J., Archontoulis S.V. (2025) The optimum nitrogen fertilizer rate for maize in the US Midwest is increasing. Nature Communications 16. DOI: ARTN 404 10.1038/s41467-024-55314-7.
Licht M.A., Comito J., Helmers M.J., Ripley E., Staudt A. (2025) Iowa learning farms: Utilizing research to develop and deliver extension outreach programs across multiple constituencies. Journal of Environmental Quality 54:747-761. DOI: 10.1002/jeq2.70008.
Lyons S.E., Arnall D.B., Ashford-Kornburger D., Brouder S.M., Christian E., Dobermann A., Haefele S.M., Haegele J., Helmers M.J., Jin V.L., Margenot A.J., Mcgrath J.M., Morgan K.T., Murrell T.S., Osmond D.L., Pelster D.E., Slaton N.A., Vadas P.A., Venterea R.T., Volenec J.J., Wagner-Riddle C. (2025) Field trial guidelines for evaluating enhanced efficiency fertilizers. Soil Science Society of America Journal 89. DOI: ARTN e20787 10.1002/saj2.20787.
Menegaz S.T., Fernández F.G., Venterea R.T., Helmers M.J., Pagliari P.H. (2025) Nitrate, Nitrous Oxide, and Ammonia Loss Mitigation with Optimum Rate of Enhanced Efficiency Nitrogen Fertilizer and Application Timing in Corn. Nitrogen Cycling and Soil Health:15-38. DOI: 10.1007/978-981-96-1132-4_2.
Mitchell M.E., Anteau M.J., Pearse A.T., Newcomer-Johnson T., Christensen J., Crumpton W., Dyson B., Canfield T.J., Helmers M., Green D., Forshay K.J. (2025) Modeling Wetland Resources for Spring Migratory Waterbirds Under Different Agricultural Management Scenarios in the Iowa Portion of the Prairie Pothole Region, USA. Wetlands 45. DOI: ARTN 48 10.1007/s13157-025-01930-y.