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Where Nutrient Efficiency Meets Field-Proven Results
The Mid-Atlantic 4R Nutrient Stewardship Association helps farmers and trusted advisors put the 4Rs into practice — the Right Source, at the Right Rate, at the Right Time, and in the Right Place. The result? Stronger yields, healthier waterways, and sustainable farms for generations to come.
A Smarter Way to Farm: Profit, Planet, and People
Nutrient management isn’t one-size-fits-all. Done right, it boosts productivity and builds trust between agriculture and the community.
The 4R Principles bring balance to every application:
Profit
Increase efficiency and reduce costs.
Planet
Protect soil health and waterways.
People
Strengthen relationships between farmers and communities.
Simple Steps. Big Impact.
Right Source
Choose the best nutrient type for each crop.
Right Rate
Apply the right amount for optimal growth.
Right Time
Deliver nutrients when plants can actually use them.
Right Place
Keep nutrients where crops can access them – and out of waterways.
Leading the Way in 4R Nutrient Stewardship
The Mid-Atlantic 4R Nutrient Stewardship Association is a non-profit collaboration of the Delaware-Maryland 4R Alliance and the Pennsylvania 4R Alliance.
Our mission is simple:
- Empower trusted advisors to lead farmers in adopting 4R practices.
- Deliver real-world proof through demonstration projects.
- Collect and share data that shows the benefits of 4R adoption.
When you work with us, you don’t get red tape — you get direct guidance, easy enrollment, and even funding support to help put the 4Rs into practice.
Practical Support for Farmers and Advisors
Every farm is different. That’s why our programs focus on providing:
- Region-specific resources tailored to Mid-Atlantic conditions.
- Incentive programs to encourage adoption of 4R practices.
- Ongoing support so you’re never left figuring it out alone.
Joining is simple: we announce a program, you enroll with straightforward paperwork, and we stay connected all season long.
Join Our Growing Network of Farmers & Advisors
Don’t miss program announcements, funding opportunities, and practical resources for nutrient stewardship in the Mid-Atlantic. Our email list keeps you connected: simple, direct, and always relevant.
What Our Partners Are Saying
Real results, real people. Hear from farmers and advisors who have seen
firsthand how simple steps with the 4Rs can make a big difference:
Variable rate technology has helped us utilize the same amount of fertilizer and seed and realize higher yields.
Even when we voluntarily compiled nutrient management plans, we found we didn’t need all the nutrients we were applying. We’ve gotten better since.
Bring 4R Stewardship Home to Your Farm
The 4Rs are more than principles — they’re a proven pathway to higher efficiency, healthier land, and stronger communities.
Whether you’re a farmer, advisor, or part of the environmental community, you can take the next step today.