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Fertilizer Efficiency & the 4Rs: Managing High Fertilizer Prices

When fertilizer prices are high, efficiency matters more than ever. The biggest return on investment doesn’t usually come from chasing new products—it comes from doing the fundamentals exceptionally well. That’s where the 4Rs of nutrient stewardship (Right Source,…

The Science Behind the 4Rs of Nutrient Stewardship

The Science Behind the 4Rs of Nutrient Stewardship

The 4Rs of nutrient stewardship—Right Source, Right Rate, Right Time, and Right Place—are more than guiding principles. They’re grounded in decades of agronomic research showing how nutrients move through soil, crops, and water systems. At their core, the 4Rs provide…

Getting to Know Your Soil

Getting to Know Your Soil

Article Written By: Todd Hunsicker, Growmark FS Following harvest one of the first steps to preparing for the next growing season is soil testing. Without knowing what nutrients are currently in the soil, applications of plant food may be a poor investment for growers…

Advanced Nutrient Management Vouchers Available

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…

4Rs of Dairy Manure

4Rs of Dairy Manure

Successful and informative webinar by Mid-Atlantic 4R Chester, Maryland – June 17, 2025 – The Mid-Atlantic 4R Nutrient Stewardship Association held an hour-long webinar covering the 4Rs – Right Source, Right Rate, Right Time, and Right Place – of dairy manure. Robb…

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Explore funding opportunities, practical guidance, and regional partnerships that make implementing the 4R practices easier and more effective.

Recent News

2026 4R Science Symposium Showcases Innovation in Nutrient Stewardship Across the Mid-Atlantic

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.

A small plant seedling in dark soil

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….

Nominate a 4R Advocate in the Mid-Atlantic

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…

Upcoming Events

Pennsylvania No-Till Alliance Soil Health Field Day at Ernst Conservation Seeds Farm

July 21st, 2026

Join the Pennsylvania No-Till Alliance for a Soil Health Field Day at Ernst Conservation Seeds Farm, where farmers, crop advisers, conservation professionals, and industry partners will explore practical approaches to improving soil health through no-till systems and cover crops.

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Pennsylvania No-Till Alliance Soil Health Field Day at Flinchbaugh’s Orchard & Farm Market

July 23rd, 2026

Join the Pennsylvania No-Till Alliance for a full day of educational presentations and hands-on demonstrations focused on improving soil health, crop productivity, and long-term farm sustainability at Flinchbaugh’s Orchard & Farm Market in Hallam, Pennsylvania.

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Maryland Commodity Classic 2026

July 23rd, 2026

The Mid-Atlantic 4R Nutrient Stewardship Association will be attending the 2026 Maryland Commodity Classic and looks forward to connecting with farmers, crop advisers, agribusiness professionals, and conservation partners from across the region.

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