NewLeaf Symbiotics Terrasym 2022

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


With a successful 2020 growing season, NewLeaf Symbiotics is excited to take its line of ag biologicals to the next level and offer Terrasym 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.

For the first time, Terrasym is now available to farmers directly through online purchase. Visit our e-commerce shop to learn more about each product and put in your order for the 2022 growing season.

Buy Now

If you’re a retailer or wholesaler, reach out to a Terrasym rep.

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 9/16/21 commodity price

Terrasym 2021 Product Overview





Terrasym 401 for Soybeans Seed Treatment

Terrasym 401 for Soybeans Planter Box Application

Terrasym 409 for Soybeans Second Generation Seed Treatment


Terrasym 450 for Corn Seed Treatment

Terrasym 450 for Corn Planter Box Application

See how you can try Terrasym risk-free with our Farmer Satisfaction Promise.

Learn More

2020 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