The right source matches fertilizer type to crop needs, to ensure a balanced supply of essential nutrients, considering both naturally available sources and the characteristics of specific products, in plant available forms.
The right rate matches the amount of fertilizer to crop needs, by assessing and making decisions based on soil nutrient supply and plant demand.
The right time makes nutrients available when crops need them, by assessing and making decisions based on the dynamics of crop uptake, soil supply, nutrient loss risks, and field operation logistics.
The right place applies and keeps nutrients where crops can use them, by addressing root-soil dynamics and nutrient movement, and manage spatial variability within the field to meet site-specific crop needs and limit potential losses from the field.
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 and Sailesh’s presentations complimented each other and are available to watch on our […]
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Free Webinar: “The 4Rs of Dairy Manure” June 10th at 10:00 AM Chester, Maryland – June 3, 2025 – Farmers, agronomists, and agricultural professionals are invited to a free, practical webinar titled “The 4Rs of Dairy Manure” on June 10th at 10:00 AM. This session will explore how to make the most of dairy manure using the 4Rs of […]
Read More“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.”
“Better balancing of dairy manure has enabled use across more acres in accordance with balanced crop needs and has significantly reduced nutrient imports to the farm.”
“Variable rate technology has helped us utilize the same amount of fertilizer and seed and realize higher yields.”
