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St John On Farm Research Plot

Kansas Corn is proud to partner with Vance and Chase Fisher with Fisher Agri Service on on-farm research that supports practical, producer-driven solutions for Kansas corn growers. By opening his operation to research, Fisher Agri Service helps advance unbiased, real-world data that benefits farmers across the state.

 

On Farm Trial

For farmers, the bottom line is simple: Will it work, and will it pay? These on-farm trials are designed to answer practical questions about products and management decisions Kansas corn growers make every season. By testing fungicide timing, hybrids, plant populations, biological products and disease management strategies under real-world conditions, Kansas Corn and its research partners can provide unbiased data farmers can use when making decisions on their own operations.

  • Trials:

    • Protocol #2
    • UFT #1
    • UFT #2
    • UFT #3
    • Plant Population
    • Hybrid by Fungicide
    • Bacterial Leaf Spot Protocol

    Basic Protocol Descriptions

     

    Protocol Name  Description 
    Protocol #1 Fungicide timing and efficacy with Adastrio and Xyway LFR
    Protocol #2 Fungicide timing and efficacy with Delaro Complete and Xyway LFR
    Protocol #4 Fungicide timing of Delaro Complete with two corn hybrids
    Protocol #5 Adastrio vs. no fungicide with six corn hybrids
    UFT #1 Fungicide efficacy of pre-mix fungicides vs. tank mixes with generic products
    UFT #2 Efficacy of humic acid and chitosan products compared to fungicide
    UFT #3 Fungicide efficacy for suppression of mycotoxins
    Plant Population Effect of plant population and nitrogen fertilization on disease severity
    Hybrid by Fungicide  Fungicide vs. No fungicide on different corn hybrids
    Bacterial Leaf Spot Protocol Efficacy of Curezin against Bacterial Leaf Spot
    Humic Acid  Efficacy of various humic acid application timings

     

  • Three miles south of St John, at the junction of Hwy 281 and Hwy 50, southeast of the roundabout.

Fungicide Trial

Does a fungicide application protect yield and is the return worth the investment?

This trial compares five fungicide treatments under the same field conditions to provide growers with practical, field-scale data. With multiple replications and strips designed around the farmer’s equipment, the trial can help show whether differences in treatment translate into meaningful results at harvest and, ultimately, whether those results justify the added input cost.

  • In-depth Trial Information

    • 5 treatments, 4-5 replications in a randomized complete block design
    • Strip plots, 500-1500ft long. Plot width matches the farmer’s combine header

    Notes:

    • VT application on July 10, 2026.
    • R3 application on July 24, 2026.
    • R5 disease rating on August 21, 2026.
    Treatment List
    1) Non-treated check
    2) Adastrio 8 fl oz/A at VT
    3) Adastrio 8 fl oz/A at VT fb Adastrio 8 fl oz/A R3
    4) Delaro Complete 10 fl oz/A at VT
    5) Delaro Complete 10 fl oz/A at VT fb Delaro Complete 8 fl oz/A R3
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