Knowledge Center | Koch Agronomic Services
Knowledge Center | Koch Agronomic Services
SUPERU Leads the Way in a Four-Year Study
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In a four-year study conducted by the University of Illinois, broadcasted SUPERU® fertilizer at planting led the way in corn yield with an average of 229 bu/acre.

The study looked at 19 different combinations of nitrogen sources, timing and placements and compared the yield advantage of each form, where SUPERU ranked no. 1.

SUPERU leads the way in a fouryear Illinois corn study

SUPERU is a granular urea fertilizer that uniformly incorporates both a urease and nitrification inhibitor to provide protection against all three forms of nitrogen loss – providing growers with a peace of mind when it comes to their nitrogen investment.

To learn how SUPERU can be a solution for your growers this spring, contact your KAS representative today


  • Source: Emerson Nafziger presentation at 2018 North Central Soil Fertility Conference. Funded by NREC.
  • University of Illinois. 2015-2018 (4 locations, 15 site years) 
  • 150 lbs N/acre application rate 
  • Means with the same letter are not statistically different at p<0.1

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Article Categories: Blog Icon BLOG, US
Article Tags: SUPERU
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With persistent wet weather patterns across the U.S. causing logistical strain and delay of many growers getting into their fields, some are already making the switch from anhydrous ammonia to other nitrogen sources. This means now is the time to discuss nitrogen source alternatives and nitrogen protection options with your growers.
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A farmer standing in a corn field at sunset
Record-setting rain during the 2018 fall limited or prevented fertilizer applications in many regions of the U.S. Add to that an abundance of late winter precipitation, below average temperatures and large snow melt have led to record-setting floods in parts of the Midwest and saturated fields in other parts of the U.S., making it difficult for growers to hit the ground running this spring.
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