Tailored Solutions for Corn in Michigan

June 14, 2023

TRIAL OBJECTIVE

  • The objective of this trial was to evaluate tailored solutions for fungicide applications using FieldView™ digital insights in Michigan.
  • Data generated from this trial will help to reinforce and improve FieldView™ recommendations for fungicide application for corn products with varied levels of disease susceptibility.

RESEARCH SITE DETAILS

Planting Date 5/9/22    
Harvest Date 10/7/22  

Potential Yield
 (bu/acre)
 200    
Seeding Rate
(seeds/acre)

33,000


 
Location Williamston, MI    
Soil Type  Loam  

Previous
Crop
Soybean    
Tillage
Type
Conventional  


 
  • A split-block design with three replications was used to compare yield response of four corn products to a fungicide application at the R1 growth stage (Figure 1).
  • Treatments
    • Four SmartStax® RIB Complete® corn blend products with relative maturities (RM) ranging from 99 to 102: Product A (RM 99), Product B (RM 100), Product C (RM 101), Product D (RM 102).
    • Fungicide: Untreated and Delaro® Complete Fungicide at 10 oz/acre at R1 growth stage.
Figure 1. 2022 trial layout was a split plot design comparing response of corn products to fungicide application at the R1 growth stage.

UNDERSTANDING THE RESULTS

  • While disease pressure was low at this location in 2022, data is used to bolster the FieldView™ digital insights model for tailored solutions.
  • In this trial, when treated with Delaro® Complete Fungicide at the R1 growth stage the four corn products had an average yield advantage of 8 bu/acre over the untreated check (Figure 2).
  • In 2022, corn product C (101 RM) showed the greatest response to fungicide application with an increase of 11 bu/acre over the untreated (Figure 3).
Figure 2. Combined average yield (bu/acre) response of four corn products to Delaro® Complete Fungicide application at R1 growth stage compared to the untreated in Michigan, 2022, (3 replications).

Figure 3. Average corn product yield comparison of four corn products to Delaro® Complete Fungicide application at R1 growth stage vs untreated checks in Michigan, 2022 (3 replications).

Figure 4. 2022 Michigan FieldView™ digital insights spatial yield data from the trial area showing yield variation.

KEY LEARNINGS

  • While very little disease pressure was present at this location in 2022, the average yields of Delaro® Complete Fungicide treated corn at the R1 growth stage was 8 bu/acre higher than the untreated corn.
  • The magnitude of yield increase varied by corn product and this information will help to provide a better understanding for development of tailored solutions in FieldView™ digital insights.

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