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
2027 Small Grain Vouchers Are Now Available
August 18, 2026
Vouchers for farmers and trusted advisors to plan their next step in 4R adoption are now available for the 2026/2027 small grain season. From testing a nitrogen claim reduction product to splitting your nitrogen across the growing season, farmers and trusted advisors can earn a $1,000 planning voucher from the Mid-Atlantic 4R Nutrient Stewardship Association. There will be 30 small grain vouchers available for the final time of our 2024 National Fish and Wildlife Foundation Innovative and Nutrient Sediment Reduction Grant.
4R Voucher & Implementation Program: Winter Enrollment Opens August 18
August 14, 2026
Funding is available for Chesapeake Bay Watershed farmers and trusted advisors implementing advanced nutrient management practices. Eligible participants may receive planning vouchers, per-acre cost-share payments, and technical assistance support for qualifying 4R stewardship projects.
Nominate The Next Mid-Atlantic 4R Advocate
August 11, 2026
Mid-Atlantic 4R Nutrient Stewardship Association (MA4R) will be accepting nominations until December 4th. The purpose of a 4R Advocate program is to highlight growers and agricultural retail partners for implementing 4R practices, while offering a year of recognition.
Plant Map 3D: A New Technology Helping Farmers Get More Benefit from Cover Crops
August 9, 2026
Applications are open for the 2027 season. Plant Map 3D maps the nitrogen your cover crop has made available across the field, so sidedress rates can be adjusted acre by acre. Mapping is covered by the program, plus up to $50/acre yield protection.