Western Illinois University Study Achieves Soybean Yield Increase


Bio Soil Enhancers, Inc organic SumaGrow liquid product was evaluated in 2012 at the Allison Organic Research Farm in southern Warren County and the conventional WIU farm near campus in McDonough County. SumaGrow is a polymicrobial formulation containing multiple strains of naturally occurring soil microbes with humic acid and is intended to inoculate soil to improve plant and soil health and crop yield. Soybean and corn plots were sprayed with the product and grain yields were estimated and compared to control (no spray) plots.

Results: Statistics for the SumaGrow treatment of 1 application at 1.8 gal/a at the WIU site reveal a significant soybean yield improvement using the product with an increase of 9.8 bu/a over the highest yielding control.


Here is the link to a copy of the study report: WIU Soybean Study

Sumagrow Increased Yield for Taylor’s Fresh Organic’s Soybean and Zucchini Crop

The findings from the data show that the application of SumaGrow (referred to as SumaGreen in report) at the rate of 1.66 GPA provided approximately 125lbs of Nitrogen for plant uptake. SumaGrow solubilized the high supply of phosphorus in the soil making it readily available to the plant and increased the uptake in the plant dramatically. SumaGrow also reduced the removal of potassium from the soil by 88lbs and left 26 lbs. of nitrogen available for the wheat crop.

SumaGrow reduced material handling, application costs and lowered high phosphorus in the soil, and also lowered Taylor’s fertilizer program by $231.45 per acre. The conventional program is more costly, more susceptible to nutrient loss, more material to handle and is a less sustainable farming practice.

Actual Results:

Zucchini – The crop had an increase yield of 13.5%. Due to heavy rains, 20% of the crop was drowned out during mid harvest and the remainder of the field was overcome by disease and shortened the life of the crop. Despite that, the quality of the crop was much better. Adding the 20% loss of crop, the increase in yield would have been 39.5% if crop was not lost.

taylor's fresh organic's pic

Soybean – Where SumaGrow was applied in furrow population final stand was increased by 12.5%.