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ESN Smart Nitrogen from Agrium provides options for fall applications
Aug. 27, 2014
Spring nitrogen (N) applications are dependent on favorable weather and being able to get in the field in a timely manner. Fall applications of N can help eliminate many of these issues. With ESN® SMART NITROGEN®, growers can apply all of their N in the fall and not have to worry about another application in the spring, or they can apply part of their N in the fall and increase the flexibility of the spring application program.
ESN, made by Agrium Wholesale, is a controlled-release fertilizer consisting of a urea granule encapsulated in a polyurethane coating. This allows the N to release from the granule at a rate controlled by soil temperature, providing continuous feeding of N when the plant needs it most. This continuous feeding makes ESN a great option for growers where fall N applications are recommended.
ESN has been shown to be an effective alternative to anhydrous ammonia for fall application. ESN can save horsepower and trips across the field, and perform as well as or better than anhydrous ammonia, when applications are appropriate.
“ESN performs well in fall applications for areas where the soil stays frozen during the winter,” says Dr. Alan Blaylock, Manager, Agronomy, Agrium Wholesale. “Fall applied ESN where soils do not stay frozen would be subject to some slow release, if the soil temperature warms up during the winter.”
Fall applications of ESN can provide benefits for a number of crops, with corn being one example. Growers can have a complete fertilization by blending ESN with phosphorous (P) and potassium (K). “Applying ESN in the fall can help eliminate spring fertilization and planting delays,” says Blaylock. “ESN is an excellent N choice for fall strip-till applications. In addition, ESN is a complete controlled-release nitrogen and requires no messy additives.”
Being able to apply your N in the fall is just one way ESN provides flexibility for growers. Besides fall applications, ESN can be applied in a single pre-plant application or top- or side-dressed, depending on weather, field conditions and limited time, allowing growers to implement their preferred management system. Because ESN protects N from loss, it is easily adaptable to many N management programs and application timings.
Source: Agrium news release
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