NewLeaf Symbiotics Terrasym 2022

Discover the power of Terrasym technology now available in seed treatment and planter box application!


NewLeaf Symbiotics is excited to take its line of ag biologicals to the next level and offer Terrasym microbial inoculants as a planter box application for corn and soybeans.

Terrasym planter box application utilizes the power of microbe technology to conveniently add Terrasym to crops with seed lubricants, eliminating the need to mix a slurry and putting Terrasym directly in the hands of farmers.

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Use our calculator to see the return Terrasym could bring you in 2022.

[1] Incremental return per acre based on Terrasym performance of +2.0 Bu/A in soybeans and +4.5 Bu/A in corn.
[2] 2020 IN10T FarmerTrials data
[3] Based on forecasted 2022 pricing.

Terrasym Product Overview





Terrasym 401 for Soybeans Seed Treatment

Terrasym 401 for Soybeans Planter Box Application

Terrasym 409 for Soybeans Seed Treatment

Terrasym 409 for Soybeans Planter Box Application


Terrasym 450 for Corn Seed Treatment

Terrasym 450 for Corn Planter Box Application

Yield Testimonials


Terrasym 408

When I examined the treated and untreated roots, I noticed a lot of finer hairs on the plant that was treated. Around August, I called another farmer and said, ‘Hey, I've never seen soybeans filled to the top like this -  just this stack full of pods.’ We went in the field, circled out a  30-acre spot, and could see a five to six bushel yield advantage on the Terrasym treated soybeans.

Tom Feldman;
Slater, IA


Terrasym 450

My farm is poorly drained and has wet soil, so we chose to use Terrasym 450 to help improve our yields. We've collected the last five years worth of yield data. After using Terrasym, we beat it by 10 bushels. But we did make one mistake: We didn't do the whole thing. We should've used both sides of the planter.

Steve Johnson;
Ames, IA


Terrasym 401

When I think of Terrasym, I think of all the science behind it. Everything at NewLeaf Symbiotics is PhD-driven. They’re actually creating a product and constantly working to better it.

Matt Storby;
Lake Mills, IA