Promoting Sustainable Nutrient Stewardship Across Pennsylvania
The Pennsylvania 4R Alliance works with farmers, ag retailers, and conservation leaders to deliver science-based nutrient management systems. Our goal: improve crop productivity, increase nutrient efficiency, and protect Pennsylvania’s waterways and farmland.
An Industry-Led Partnership for Pennsylvania Agriculture
Founded in 2012 by PennAg Industries, the Pennsylvania 4R Alliance is an industry-led partnership that connects farmers, agribusinesses, and conservation partners.
The Steering Committee includes: Rosetree Consulting (Executive Directors Eric & Brooke Rosenbaum), The Nature Conservancy, Growmark FS, Pennsylvania Farm Bureau, PA NRCS, Timac Agro USA, Chemgro, and Syngenta.
Science-Based Solutions for Pennsylvania Farms:
We work directly with Pennsylvania farmers to:
- Increase productivity and profitability through practical, field-tested nutrient strategies.
- Enhance environmental conservation across Pennsylvania farming communities.
- Expand adoption of sustainable 4R nutrient stewardship practices, including manure injection and precision application methods.
- Support on-farm implementation of manure injection to improve nutrient placement, reduce runoff, and protect soil and water quality.
- Provide anonymous nutrient management data to track regional progress and inform future programs.
- Recognize producers and retailers leading in 4R adoption.
- Share farmer success stories at conferences, field days, and outreach events
Recognizing the People Who Make PA4R Work
This Alliance succeeds because of a committed network of leaders across agriculture and conservation.
Su Fanok
Non-Government Organization Chair
Amanda Bunn
Non-Government Organization Chair
Brooke Rosenbaum
Agribusiness Chair
Eric Rosenbaum
Agribusiness Chair
Mark Avery
Agribusiness Chair
Ben Hushon
Agribusiness Chair
Mike Brubaker
State CC
State Conservation Commission/PA Department of Agriculture Chair
Grant Gulibon
Farm Bureau Chair
Dan Ludwig
NRCS Chair
Charlie White
University Chair
Jennifer RH
Penn Ag Chair
Strengthening Pennsylvania Agriculture
Since 2012, the Pennsylvania 4R Alliance has:
- Expanded 4R outreach across Pennsylvania through conferences and events.
- Collected nutrient management practice data to document statewide progress.
- Recognized farmers and advisors implementing the 4Rs successfully.
Every success story strengthens Pennsylvania agriculture — proving that sustainability and profitability go hand in hand.
Be A Part of the 4R Movement in Pennsylvania
The Pennsylvania 4R Alliance invites farmers, advisors, and ag retailers to take part in advancing nutrient stewardship across the state.
Contact Info
📞 Eric Rosenbaum | 484-788-7263
📧 ericrosenbaum@rosetreeconsulting.com
📱 Facebook: @PA4RALLIANCE
Press and News
2025 Summer Voucher Findings
July 29, 2026
One way, MA4R has been moving the needle, is through the use of 4R Vouchers. These vouchers are good for $1,000 worth of nutrient data management or advanced nutrient management planning. Funds go directly to a trusted advisor to assist a farmer for free or at a reduced cost. The purpose of the voucher allows any farm, no matter the size or level of 4R implementation, to organize their data or plan out how to utilize an advanced nutrient management practice for their business and showcase how the practice would benefit their farming operation.
Mid-Atlantic 4R’s Launches a New Website
July 24, 2026
Mid-Atlantic 4R Nutrient Stewardship Association is very excited to share, they have recently completed a new updated website! Check out 4rmidatlantic.com to see our updated website, learn about current funding opportunities, and meet all those who work together to make for a successful program.
4Rs Collaborate with Hoover Manure Expo
July 10, 2026
Join Mid-Atlantic 4R Nutrient Stewardship Association and Pennsylvania 4R Alliance at Hoover’s Manure Expo set on July 27, 2026.
Plant Map 3D: A New Technology Helping Farmers Get More Benefit from Cover Crops
June 10, 2026
Plant Map 3D is an innovative tool that helps farmers better understand how cover crops influence nitrogen availability and crop nutrient needs. Available through a Regional Conservation Partnership Program (RCPP) project in the Chesapeake Bay watershed, Plant Map 3D uses advanced imaging technology to create field-specific recommendations that support more precise nitrogen management decisions. How […] Read More