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.
Chester, Maryland (Tuesday, October 8, 2024) – The Delaware Maryland 4R Alliance is holding their annual partner meeting on Monday, October 28th at the Wye Research and Education Center in Queenstown, Maryland. 4R partners join to vote on steering committee actions for the coming year and the Delaware Maryland team shares on the success of […]
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Annapolis, Maryland (September 30, 2024) – On Thursday, September 12th the Mid-Atlantic 4R Nutrient Stewardship Association held their annual 4R Symposium at the Maryland Department of Agriculture. Over 170 individuals attended the hybrid event and heard four outstanding presentations and a farmer panel. “We were ecstatic to see the growth and interest of 4R farming that […]
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.”
