2025

Growth Supplement 30 on Soybeans in Wisconsin

Growth Supplement 30

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.

 

https://www.soilbiotics.com/files/2025_GS-30_Beans_WI.pdf

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.

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