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Extension Publications

Overview

2025 is shaping up to be an exciting year for perennial groundcover research! RegenPGC is a research project, but we’re more than just that. Our mission is to share our findings with the agricultural community and all other interested parties. As we delve deeper into how to establish and maintain perennial groundcovers within existing corn and soybean production systems, we’re eager to share our progress with anyone interested in understanding how perennial groundcover increases cropping system complexity.
As we enter the fourth year of our five-year USDA-NIFA-funded research project, we’re gaining valuable insights into managing the interaction between the primary row crop and the perennial groundcover to ensure competitive yields while maintaining traditional crop production methods.

In 2025, we’re ready to take our research to the next level. We’re excited to share our findings with farmers, crop advisors, technical service providers, government agencies (NRCS/DNR), and other agricultural scientists who are eager to explore the possibilities and challenges of integrating perennial groundcovers into their row crop agriculture.
The publications listed on this page were created through a collaborative effort between our researchers and our Extension Objective. We hope you’ll share them with anyone who might find them helpful.

As we enter the fourth year of our five-year USDA-NIFA-funded research project, we are gaining more and more insight into managing the interaction between the primary crop and the perennial groundcover to ensure competitive yields with traditional crop production methods.

In 2025, we have reached a point where we are ready to more comprehensively share our research with farmers, crop advisors, technical service providers, government agencies (NRCS/DNR), and other agricultural scientists eager to understand the possibilities and challenges of integrating perennial groundcovers into their row crop agriculture.

The publications listed on this page were created through a working partnership between our researchers and our Extension Objective. We hope that you will share them with any interested audiences.

2025

  • Bartel, Cynthia. (2025, February 11). Field Notes: Perennial groundcover: A missing piece in the USDA farm bill puzzle. 2025 Lunch & Learn Webinar Series: Week 5. Quantifying and Valorizing Ecosystem Service Benefits for Perennial Groundcover in Corn & Soybean Production, Ames, IA, United States. https://iastate.box.com/s/gnvea9xsvet9o17wq6rf4024g49c56cg. (See accompanying Video & Presentation).*
  • McDaniel, Marshall. (2025, February 11). Field Notes: Soil moisture & nitrogen competition in perennial ground cover systems. 2025 Lunch & Learn Webinar Series: Week 5. Quantifying and Valorizing Ecosystem Service Benefits for Perennial Groundcover in Corn & Soybean Production, Ames, IA, United States. https://iastate.box.com/s/9ny6zcynelahryb45xwvqcepyx1v4p3e. (See accompanying Video & Presentation).*
  • Oluwatuyi, Olowoyeye. (2025, February 11). Field Notes: PGC impacts on runoff & soil erosion in corn & soybean production. 2025 Lunch & Learn Webinar Series: Week 5. Quantifying and Valorizing Ecosystem Service Benefits for Perennial Groundcover in Corn & Soybean Production, Ames, IA, United States. https://iastate.box.com/s/vxw1pvwmljmzopbekrcvznss3673ag34. (See accompanying Video & Presentation).*
  • Rockson, Philip. (2025, February 11). Field Notes: PGC impacts on runoff & soil erosion in corn & soybean production. 2025 Lunch & Learn Webinar Series: Week 5. Quantifying and Valorizing Ecosystem Service Benefits for Perennial Groundcover in Corn & Soybean Production, Ames, IA, United States. https://iastate.box.com/s/muu0ah82x5v6csa2rw768i1l24l4g4fy. (See accompanying Video & Presentation).*
  • Lira, Sara. (2025, February 4). Field Notes: Selecting commercial corn hybrids for use in well-managed PGC systems. 2025 Lunch & Learn Webinar Series: Week 4. Corn Hybrid Performance within Perennial Groundcover Systems, Ames, IA, United States. https://iastate.box.com/s/rrr49zptsyd4ftc997wqdhsyiyhkecw0. (See accompanying Video & Presentation).*
  • Lübberstedt, Thomas & Bilgici, Memiş. (2025, February 4). Field Notes: Should we breed corn for use in perennial ground cover production systems? 2025 Lunch & Learn Webinar Series: Week 4. Corn Hybrid Performance within Perennial Groundcover Systems, Ames, IA, United States. (See accompanying Video & Presentation).*
  • Raman, D. Raj. (2025, February 4). Field Notes: Taxonomy of perennial groundcover production systems: Breeding to manage brittleness. 2025 Lunch & Learn Webinar Series: Week 4. Corn Hybrid Performance within Perennial Groundcover Systems, Ames, IA, United States. https://iastate.box.com/s/aku08r0t8ens3i20pl9clk324g8zsfwf. (See accompanying Video & Presentation).*
  • Fei, Shui-zhang. (2025, January 28). Field Notes: Perennial Groundcovers – Designing options that work. 2025 Lunch & Learn Webinar Series: Week 3. Selecting Perennial Groundcovers for Corn & Soybean Production Systems & Their Ideal Characteristics, Ames, IA, United States. https://iastate.box.com/s/v99gvyopnbsi0mt33dr3vkvmep1i6u48. (See accompanying Video & Presentation).*
  • Galland, Patrick. (2025, January 28). Field Notes: Evaluating unsuppressed groundcover systems. 2025 Lunch & Learn Webinar Series: Week 3. Selecting Perennial Groundcovers for Corn & Soybean Production Systems & Their Ideal Characteristics, Ames, IA, United States. https://iastate.box.com/s/9t24vxduixjqb6lq8dfo718xxb7xiayb. [See accompanying Video & Presentation].*
  • Moran, Jack. (2025, January 28). Field Notes: Improving groundcover establishment with nurse crops, seeding rates, and hydrophilic coating. 2025 Lunch & Learn Webinar Series: Week 3. Selecting Perennial Groundcovers for Corn & Soybean Production Systems & Their Ideal Characteristics, Ames, IA, United States. Ames, IA, United States. https://iastate.box.com/s/zc592vfgvsg7djxpwyjtr3bdtfpfi611. (See accompanying Presentation & Video).*
  • Schlautman, Brandon. (2025, January 28). The role of on-farm trials in advancing perennial ground cover systems. 2025 Lunch & Learn Webinar Series: Week 3. Selecting Perennial Groundcovers for Corn & Soybean Production Systems & Their Ideal Characteristics, Ames, IA, United States. Ames, IA, United States. https://iastate.box.com/s/qap2xz8yhav09zurit2esw3t73xc07a4. (See accompanying Presentation & Video).*
  • Haramoto, Erin & Searcy, Kiera. (2025, January 21). Field Notes: Chemical weed control options in perennial groundcover production systems. 2025 Lunch & Learn Webinar Series: Week 2. Perennial Ground Cover Suppression & Weed Management within Corn & Soybean Production Systems, Ames, IA, United States. https://iastate.app.box.com/file/1752511662346?s=l5kbkp5vft2h25rcmv8dg1zkri7e23jx. [See accompanying Video & Presentation].*
  • Wilson, Brent. (2025, January 21). Field Notes: Maintaining a crop growth zone in perennial ground cover (PGC) systems. 2025 Lunch & Learn Webinar Series: Week 2. Perennial Ground Cover Suppression & Weed Management within Corn & Soybean Production Systems, Ames, IA, United States. https://iastate.app.box.com/file/1752514019636?s=0tjfrm4rax5imc6krb2tqxd5nufak47z. [See accompanying Video & Presentation].*
  • Moro, Amina. (2025, January 21). Field Notes: Crop growth zone requirements in perennial groundcover corn systems. 2025 Lunch & Learn Webinar Series: Week 2. Perennial Ground Cover Suppression & Weed Management within Corn & Soybean Production Systems, Ames, IA, United States. https://iastate.app.box.com/file/1749732688774?s=itj4y44whhk3j013agyyif8prueqec7l. [See accompanying Video & Presentation].*
  • Bartel, Cynthia. (2025, January 14). Field Notes: Perennial groundcover: Merging conservation with high-yield row crop production. 2025 Lunch & Learn Webinar Series: Week 1. Perennial Ground Cover Integration into Corn & Soybean Production Systems, Ames, IA, United States. https://iastate.box.com/s/8t7f51bfyvlqnvabjua1qarrr5i2t067. [See accompanying Video & Presentation].*
  • Moore, Ken & Hinz, Roger. (2025, January 14). Field Notes: Getting started with perennial groundcover (PGC). 2025 Lunch & Learn Webinar Series: Week 1. Perennial Ground Cover Integration into Corn & Soybean Production Systems, Ames, IA, United States. https://iastate.app.box.com/file/1731007451085?s=k1g4vhew7o85sm7sk012d7vb2q3nbhtp. [See accompanying Presentation & Video ].*
  • Raman, Raj. (2025, January 14). Field Notes: Perennial groundcover integration into corn and soybean production: Potential & scalability. https://iastate.box.com/s/fij94zkojl6kpaofkmepdk66cpzb0ij3. 2025 Lunch & Learn Webinar Series: Week 1. Perennial Ground Cover Integration into Corn & Soybean Production Systems, Ames, IA, United States. [See accompanying Video & Presentation].*
  • Rockson, Philip. (2025, January 14). Field Notes: Time and labor demands in PGC corn and soybean production. 2025 Lunch & Learn Webinar Series: Week 1. Perennial Ground Cover Integration into Corn & Soybean Production Systems, Ames, IA, United States. https://iastate.box.com/s/1snhi10o6l4hzyse84p9db4trohl3y2d. [See accompanying Video & Presentation].*

2022

  • Dougherty, Brian, Myers, Gabrielle, Pederson, Carl, Andersen, Daniel S., Helmers, Matt, J., Raman, D.Raj, & Moore, Kenneth J. (2022). Effect of Annual and Perennial Cover Crops and Manure Application Timing on Yields. Iowa State University Research & Demonstration Farms Progress Reports, 2021(1), 45–46.

*These Field Notes are part of the 2025 RegenPGC Lunch & Learn Webinar Series, Unlocking the Potential of Perennial Groundcovers in Corn and Corn/Soybean Production Systems, a five-week series that ran from January 14 – February 11, 2025, designed to explore the innovative use of perennial groundcovers in corn and corn/soybean production systems as a cover crop.