
INSIGHTS
Proven to Increase Yield & Improve ROI
Since its inception, NewLeaf Symbiotics has partnered with a variety of contract research organizations, INTENT® FarmerTrials®, and worked directly with growers across the country to develop microbial inoculant ag biologicals that increase plant nutrient uptake, and improve abiotic stress tolerance for corn and soy. NewLeaf Symbiotics has also developed bioprotection pipeline products for corn rootworm.
Contact us to see how Terrasym can fit into your operation!


Beck's Hybrids Practical Farm Research Trial Results – 3 Seasons of Trialing
Terrasym 401 Microbial Inoculant for Soybeans under iron deficiency chlorosis (IDC)
+1.5 Bu/A advantage
$12.71 net return per acre
Terrasym 450 Microbial Inoculant for Corn
+3.8 Bu/A advantage
$12.45 net return per acre
INTENT FarmerTrials® Results – 1 Season of Trialing
Terrasym 401 Microbial Inoculant for Soybeans
75% win-rate
+2.0 Bu/A advantage
+9.6% Total root area
+5.7% Rooting depth
+19.4% Leaf tissue iron concentrations (ppm)
Terrasym 450 Microbial Inoculant for Corn
80% win-rate
+4.5 Bu/A advantage
+6.2% Total root area
+5.2% Rooting depth
+9.0% Nodal root length
+17.5% Leaf tissue iron concentrations (ppm)
+12.6% Leaf tissue manganese concentrations (ppm)
Click on the interactive map below to view yield results for our microbial inoculant and bio control* products.
*pending EPA approval

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NewLeaf Symbiotics Product Overview
SEED TREATMENT
IN-FURROW
PIPELINE TREATMENT
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2020 Yield Success Stories
TERRASYM FOR SOYBEANS
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
TERRASYM FOR CORN
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
* Source: 2020 IN10T FarmerTrials® data. Performance may vary from location to location and from year to year as local soil, climate, and/or other conditions change. Always read and follow label directions. Check state registration to make sure product is registered in your state. NewLeaf Symbiotics® and Terrasym® are both registered trademarks.