VariMax

Return on Investment from the Field

The Corn Results

Crop: Corn 2019-2020 Field Trials

Summary:

  • 6 Trials had either large strips where excess N was applied or smaller check plots
  • Average reduction in N across sites was 26 pounds of N and yield ranged from 220 to 280 bu/acre
  • Increase in revenue of $14.30/acre, primarily due to N savings
  • ROI average of 138%

Crop: Corn 2019-2020 Farm Case Study

Summary: 8,500-acre irrigated farm that used the VariMax spoon-fed N program. Sandy soils to silt loams

  • 2019 N savings was 30 lb N/acre averaged across all acres
    • N savings varied between fields from 0 to 52 lb N/acre
    • N savings was $16.50/acre over 8,500 acres ($140,250)
    • ROI was 175%
    • No yield loss in check plots
  • 2020 N savings was 25 lb N/acre averaged across all acres
    • N savings varied between fields from 0 to 46 lb N/acre
    • N savings was $13.75/acre over 8,500 acres ($116,875)
    • Did have 6 fields where more N was applied than was planned
    • ROI was 129%
    • No yield loss in check plots

General Observations in Corn:

  • Irrigated Corn
    • Most farmers will see a reduction in N applied due to over applying historically. N savings varies from 10-100 lb N/acre. Biggest N savings after crop rotation of failed crops
    • Average NUE across farms will typically range from 0.7-1.0 but it varies from year-to-year. Therefore, it is important to not use general N coefficients like 1.0 lb N/bu
  • Dryland Corn
    • Varies by year, in wet years will typically apply more N than historically based on higher yield potential
    • Biggest benefit is capturing yield potential in the given year
Corn

The Wheat Results

Crop: Wheat 2019-2020 Field Trials

Summary:

  • 6 Trials had either large strips where excess N was applied or smaller check plots
  • In 5 of the trials, more N was applied (5-25 lb N/acre) matching N requirements with yield potential
  • Average yield increase has been 3.8 bu/acre
  • Increase in revenue of $24.70/acre, mainly due to increase in yield
  • ROI average of 517%

General Observations in Wheat:

  • Typically, over the last 2 to 3 years, we see farmers apply high N rates because the yield potential has been present
  • Ideal N rate varies widely due to moisture availability and yield potential

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2017 VARIMAX RESULTS

On the wide range of fields and conditions that utilized the VariMax system on their 2017 Wheat Crop, we have compiled a summary of the average results.


One YIELD - Average $48.00 Per Acre increase
Two NITROGEN EFFICIENCY - Saved on average $12.00 Per Acre
Three PROTEIN - Applying an Extra Pass Late Season Application Increased Protein 1.2%, securing a $.60 Per Bushel Price Premium
four VARIABLE RATE APPLICATION - Provided a $4.36 Per Acre savings

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