+4.54 bu/ac using SB Armor17-K on Corn in Wisconsin

Overview

In Wisconsin, a grower trials SB Armor17-K against their usual program of two fungicide applications on corn. The SB Armor17-K treated acres received two foliar spray applications via drone. Throughout the trial, tissue sampling showed increased nutrient uptake in the corn treated with SB Armor17-K. This added up to an increase of 4.54 bushels per acre from the SB Armor17-K-treated corn.

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The Trial

Location: Cuba City, WI

Soil Type: Various

Tile: Spot Tile

Irrigation: None

Fall Tillage: No Till

Spring Tillage: Strip Till

Previous Crop: Soybean

Crop: Corn

Plant Date: 05/08/2025

Population: 35,000, 30-inch rows at 2.5-inch planting depth

Harvest Date: 10/12/2025

 

SB Armor17-K Application

Application #1

Application Date: 06/25/2025

Growth Stage: V10

Application Method: Foliar (Drone)

Product Application Rate/Acre: 3 Quarts

Tank Mix Rate/Acre: 3 Gallons

 

Application #2

Application Date: 08/13/2025

Growth Stage: R3

Application Method: Foliar (Drone)

Product Application Rate/Acre: 2 Quarts

Tank Mix Rate/Acre: 3 Gallons

 

The Results

Yield Summary

+4.54 bushels/acre yield response

 

Key Findings

This trial had a +4.54 bushels/acre yield response.

Both applications were made with a drone. The control was the Grower Standard Practice of using a fungicide at plant plus a second fungicide at R3 with a 7 oz./acre rate.

The Tissue Sample charts are individual nutrients that had positive uptake trends during this study.

 

Summary

This grower in Wisconsin saw an increase of 4.54 bushels per acre using SB Armor17-K compared to their usual program. Tissue sampling showed an increased uptake of nutrients in the acres that received the SB Armor17-K applications.

 

https://www.soilbiotics.com/files/2025%20SB%20Armor17-K%20on%20Corn%20WI%20-%202.pdf