Case Studies

Adapt-N has been developed over years of iterative testing in the lab, on university research plots, and through on-farm strip trials. Each year, the tool has been further refined and calibrated, and this coming Spring, Adapt-N is being re-launched on an entirely new platform with the features growers and agronomists have been asking for. Below, you’ll find details around how these tests were conducted, what the results were, and how the tool has been continuously improved as a result. Through testing, Adapt-N has proven its ability to increase grower profit while reducing environmental losses.
  • Agronomy Journal, June 17, 2016: Adapt-N Outperforms Grower-Selected Nitrogen Rates in Northeast and Midwestern United States Strip Trials.

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  • Iowa, 2015: Diverse Nitrogen Management Practices Generate Value to Farmers in Iowa.

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  • Iowa and New York, 2014: Adapt-N boost farmers profits, cuts N losses, in 3-year strip trial study in Iowa and New York.

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  • Upstate NY, 2013: New York farmer Arnold Richardson achieves profit gains ranging from $91/ac to $122/ac from the use of Adapt-N in 2013.

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  • Iowa, Minnesota, and New York, 2011 – 2012: An analysis of 84 strip trials across two seasons in the Midwest and Upstate New York resulted in nearly 80% of trails generating substantial grower profit increase to the tune of up to $31/acre.

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  • Iowa and New York, 2012: 42 replicated strip trials on commercial and research farms across New York and Iowa (plus one in Minnesota) resulted in 87% of trials resulting in grower profit increases, in some cases by as much as $32/acre.

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  • Upstate NY, 2011: an 87-field, 1,200 acre farm had 76% silt loam, 23% silty clay loam, and 1% gravelly soil. Soil organic matter ranged from 0.9% to 9.9%. The farmer had applied pre-plant broadcast urea plus UAN solution banded at planting. Starting in early June, Adapt-N was run every 5 days until the crop was too high for additional sidedress N applications. The results: some fields were found to have 100 lbs/ac excess N, while others were found to be deficient.

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  • Upstate NY, 2011: Donald and Sons Farm, a 1,500 farm in Moravia, NY, tests Adapt-N in 2011 on soil varying greatly in type and organic matter. Replicated strip trials were given a 22 lb monoammonium phosphate starter during planting in May. Adapt-N was then used to generate a sidedress recommendation of 80 lbs/ac, whereas the soil testing lab’s analysis indicated the need for 220 lbs of N. “It was hard for me to chew on 80 pounds,” said Rodney Donald, expecting that the 80 pound rate would leave his crop badly nutrient deficient. However, as the season came to a close, the results indicated otherwise. Even with a 140 lb N difference in sidedressing rates, there was no yield impact. Had Donald and Sons used the Adapt-N rate across their farm, they would have saved $70,000 in fertilizer costs!

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  • Upstate NY, 2012: Following their successful test in 2011, Donald and Sons Farm implemented Adapt-N across their entire 1,500 acre farm for the 2012 season. Adapt-N’s recommendations varied from 65 to 190 lbs N/acre, across many field zones, depending on weather, soil texture, soil organic matter, and sidedressing date. A strip trial was maintained of the “old” sidedressing rate to keep a fair comparison. Overall, there was an 87 lb/acre reduction in fertilizer application, with no measurable yield impact, resulting in a savings of $42/acre by matching the right N rate for each field.

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