Growth Supplement 30 on Soybeans in Wisconsin
Overview
In Wisconsin, a grower compared how two different varieties of soybeans responded to Growth Supplement 30. A cool spring led to slowing growth across the entire field, regardless of variety or treatment. Both varieties were treated with Growth Supplement 30 via broadcast drone at growth stage V5 and growth stage R2. One variety responded to Growth Supplement 30 with an increased yield of 1.02 bushels per acre when compared to the control.
The Trial
Location: Cuba City, WI
Soil Type: Various
Tile: Spot tile
Irrigation: None
Fall Tillage: No Till
Spring Tillage: No Till
Previous Crop: Corn
Crop: Soybeans
Plant Date: 04/14/2025
Population: 120,000, 15-inch rows at 1.75-inch planting depth
Harvest Date: 9/17/2025
Growth Supplement 30 Application
Post Herbicide Application
Application Date: 7/1/2025
Growth Stage: V5
Application Method: Broadcast Drone
Product Application Rate/Acre: 10 oz.
Tank Mix Rate/Acre: 3 Gallons
R1-R3 Fungicide Application
Application Date: 7/31/2025
Growth Stage: R2
Application Method: Broadcast Drone
Product Application Rate/Acre: 10 oz.
Tank Mix Rate/Acre: 3 Gallons
The Results
Yield Summary
This trial had two soybean varieties planted:
The P11Z72E variety had a +1.02 bushels/acre yield response
The P17Z39E had a -1.55 bushels/acre yield response
Key Findings
This trial had two soybean varieties planted.
The P11Z72E variety had a +1.02 bushels/acre yield response
The P17Z39E had a -1.55 bushels/acre yield response
It was reported that emergence issues led to a projected 7% yield loss
It was also reported that a very cool spring led to soybeans growing very slow early in the growing season
Summary
The application of Growth Supplement 30 supported a bump in bushels per an acre harvested in one variety of soybeans.
Products Used

Growth Supplement 30
Growth Supplement 30 is a foliar applied nutrient stabilizer. It stimulates plant metabolism, transports nutrients in plants, dissolves macro and micro elements, and enhances cell division and elongation. Containing plant derived fulvic acids, Growth Supplement 30 is compatible with most conventional herbicides.