News

4Rs Collaborate with Hoover Manure Expo
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
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 […]

4R Voucher & Implementation Program Now Available for Chesapeake Bay Watershed Farmers
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.

2026 4R Science Symposium Showcases Innovation in Nutrient Stewardship Across the Mid-Atlantic
The Mid-Atlantic 4R Nutrient Stewardship Association held a successful 2026 4R Science Symposium on Monday, February 9, 2026. Over 70 trusted advisors and like-minded organizations joined Mid-Atlantic 4R in Lancaster Pennsylvania to learn more about practical science-based applications of 4R Nutrient Stewardship and hear directly from experts through research insights and real-world case studies highlighting how 4R farming practices are implemented on farms.

Funding, Findings, and Fertilizer Webinar: In Case You Missed It
Chester, Maryland (December 16, 2025) – The Mid-Atlantic 4R Nutrient Stewardship Association hosted a webinar “Funding, Findings, and Fertilizer” on December 5th, featuring four different topics. The webinar was recorded and can be viewed on their YouTube channel. Attendees were able to obtain continuing education credits. Below you can read a summary on each topic. […]

Nominate a 4R Advocate in the Mid-Atlantic
Highlight a 4R Farmer and Crop Consultant Today Chester, Maryland – October 2, 2025 – The Mid-Atlantic 4R Nutrient Stewardship Association (MA4R) is seeking nominations for a 4R Advocate in their region. The 4R Advocate Program recognizes agricultural retailers and growers who implement advanced fertilizer best management practices that incorporate the principles of 4R nutrient […]
Nominate a 4R Advocate in the Mid-Atlantic
Highlight a 4R Farmer and Crop Consultant Today Chester, Maryland – October 2, 2025 – The Mid-Atlantic 4R Nutrient Stewardship Association (MA4R) is seeking nominations for a 4R Advocate in their region. The 4R Advocate Program recognizes agricultural retailers and growers who implement advanced fertilizer best management practices that incorporate the principles of 4R nutrient […]

Advanced Nutrient Management Vouchers Available
“Are you ready to take your farm to the next level for yield and efficiency?” For the upcoming small grains growing season, farmers and trusted advisors in the Chesapeake Bay Watershed have the opportunity to work together and plan advanced nutrient management practices. A $1,000 planning voucher from the Mid-Atlantic 4R Nutrient Stewardship Association is […]

4Rs and Fertility
Wednesday, March 5, 2025 (Chester, Maryland) – Over 130 attendees across the region joined the Mid-Atlantic 4R Nutrient Stewardship Association’s “Testing Efficiency February Webinar” on Monday the 24th. Key takeaways from the audience included: global use of fertilizer and manufacturing, benefits and challenges of crop residue, as well as 4R cost-share findings. The morning webinar […]
4R Partnership Continues to Grow Across the Mid-Atlantic
Ensuring every nutrient application in the Mid-Atlantic is applied with the RIGHT source, in the RIGHT place, at the RIGHT rate, and at the RIGHT time. (Chester, Maryland, December 23, 2024) – In March 2024, the Mid-Atlantic 4R Nutrient Stewardship Association (MA4R), the nonprofit organization supporting the Pennsylvania 4R Alliance (PA4R) and the Delaware Maryland […]
