On-Farm Research Results: Impact of Torque ST on Corn Yield

On-Farm Research Results: Impact of Torque ST on Corn Yield March 7, 2018

This report synthesizes the results of seven Torque™ ST studies in Nebraska between 2010 and 2015. According to product information published by Monsanto BioAg, Torque ST is a seed-applied growth promoter designed to improve soil microbial activity and enhance nutrient availability.

Table 1. Site characteristics and production practices for Torque™ ST research sites where available*
YearLocationSoil TexturePrevious CropPlanting DatePlanting Rate (seeds/ac)Row Spacing
2010 Dodge 4/26/2010 Pivot
2011 Dodge Corn 5/3/2011 Pivot
2013 Clay Corn 5/10/2013 34,000 Conventional Pivot
2014 Clay Silt Loam Soybeans 5/1/2014 33,000 30 No-Till Pivot
2014 York Silt Loam Soybeans 4/29/2014 34,000 30 Ridge Pivot
2014 Saunders Silty Clay Loam CRP 5/18/2014 26,000 15 No-Till None
2015 Saunders Silty Clay Loam Soybeans 5/22/2015 28,000 15 No-Till None
* Detailed site characteristics and production practices are not available for all sites. In these cases, a dash is used to indicate the data is not available.

The product was applied at a rate of 8 oz/acre in all studies except the two Saunders County studies, where it was applied at a rate of 16 oz/acre. Site-specific data is included in Table 1. Most studies reported data for yield and grain moisture; this data is presented in Table 2. Torque ST's active ingredient of 2 x 10-7 percent lipo-chiooligosaccharide (LCO) is formulated for corn applications in an aqueous carrier accounting for more than 99% of the product.

Table 2. Corn yield and moisture data for Torque™ ST applied to corn organized by year and study location.
Study InformationMoisture (%)Yield (bu/ac)
Year County Reps* Torque ST Check P-Value Torque ST Check Diff. P-Value
2010 Dodge 15.2 15.3 0.052 178 180 -2 0.357
2011 Dodge 16.3 16.3 184 188 -4 0.055
2013 Clay 8 18.4 18.4 0.632 255.3 254.8 0.5 0.764
2014 Clay 6 16.9 16.8 0.175 284 283 1 0.216
2014 York 6 17 16.9 0.102 204 205 -1 0.382
2014 SaundersA 5 16.9 16.4 0.18 181 164 17 0.014
2015 SaundersA 8 14.64 14.58 0.045 215 213 2 0.149
* Number of replications is not available for all sites, however Nebraska On-Farm Research Network standards require a minimum of three replications for inclusion.
All data except for the 2010 data is corrected to 15.5% moisture.
A Indicates that Torque ST was applied at a rate of 16 oz/acre at the site. At all other sites, Torque ST was applied at 8 oz/acre.
Indicates yield is significantly lower for the Torque ST treatment at alpha = 0.1.
Indicates yield is significantly higher for the Torque ST treatment at alpha = 0.1.


In one of seven studies applying Torque ST resulted in a 17 bu/acre yield increase. At another site, Torque ST resulted in a 4 bu/acre yield decrease. The remaining five sites saw no statistical yield difference for using Torque ST.

This report has been posted to the Compendium of Research Reports on Use of Non-Traditional Materials for Crop Production, a searchable compilation of university research reports on non-traditional soil amendments and growth stimulants.

Nebraska On-Farm Research Network

For more information about the Nebraska On-Farm Research Network and to view other study results, visit https://cropwatch.unl.edu/on-farm-research.

Growers are currently working with Extension educators and specialists to establish protocols for 2018 studies. If you're interested, contact your local extension educator soon.

Map of on-farm research sites

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