Our demonstrations illustrate the 4 Rs of nutrient management:
  • Right Source
  • Right Rate
  • Right Place
  • Right Time
We demonstrate management systems---not individual practices.
We measure practice success through agronomic yield, economic sustainability, nutrient use efficiency and water quality impacts.
Agrium's ESN v. Urea
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Agrium designed ESN®, a polymer coated urea, to slow the release of nitrogen into the environment. This is allows the plant to access nitrogen when it needs it the most... Read more.

Application Timing
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We designed this study to demonstrate the differences in nitrogen rates and yields with different urea application times.

Spring timing gave the best return to nitrogen dollars spent. Fall had the worst return and lowest yield. 2011 weather patterns favored spring application... Read more.

Nitrogen Application Timing
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Select the Right Time for nitrogen application. Apply the Right Rate of fertilizer to meet crop needs.

Costs of inputs make it important to provide enough N so the crop is never... Read more.

Phosphorus Sidedress with MicroEssentials®
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A soil test of the field showed a relatively low phosphorus level, so we demonstrated The Mosaic Company's MicroEssentials applied as a side-dress (plant nutrients placed on or in the soil near the roots of a growing crop to provide an additional boost in available phosphorus)... Read more.

Slow Release Fertilizer
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Herb and Aaron Steffen manage a 900-acre grain farm in southern Livingston and northern McLean counties. They hosted a demonstration and two nutrient use efficiency (NUE) trials.

The Steffens plant corn continuously on two-thirds of the acres and rotate planting of corn and... Read more.

Strip Tillage Fall Nitrogen Application
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We designed this study to demonstrate differences in nitrogen rates and yields under the same nitrogen product, where the producer planted corn for two consecutive growing seasons.

We conducted this trial to: demonstrate strip... Read more.

Strip-till Nitrogen
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Keep nutrients in the Right Place, where crops can use them.

The farmer uses real-time kinematic precision guidance to apply N fertilizer in fall or early spring in a closely-controlled location relative to... Read more.


SUPERU®, a urea based product, contains urease and denitrification inhibitors within the fertilizer granule.

Koch Agronomic Services created SUPERU® to increase crops’ nitrogen uptake and efficiency.... Read more.

Webinar: Engaging Non-operator Landowners in Conservation

PowerPoint slides from Jamie Ridgely, chief operating officer of Agren, Inc. and presenter of Aug. 29 WIIN webinar on "Engaging Non-operator Landowners in Conservation." Read more.