
INSIGHTS
NewLeaf Symbiotics
Proven Increased Yield Results
Since its inception, NewLeaf Symbiotics has partnered with a variety of contract research organizations, IN10T® FarmerTrials® and worked directly with growers across the country to develop ag biologicals for corn and soy and pipeline products to solve the billion dollar corn rootworm problem. From 2016–2019, we’ve seen the following results on our commercial products:
Terrasym 401 for Soybeans
3.8 Bu/A increased average yield
71% win-rate
Terrasym 450 for Corn
5.9 Bu/A increased average yield
79% win-rate
Once NewLeaf Symbiotics receives 75% of all 2020 harvest data, we will update our average yield advantage and win-rate. Sign up for our email newsletter to make sure you receive this information when it’s available.


In-Season FarmerTrials® Crop Results
Terrasym 401 for Soybeans
+2.5% Stand
+9.6% Total root area
+5.7% Skeleton rooting depth
+5.7% Skeleton rooting width
Terrasym 450 for Corn
+1.7% Stand
+6.2% Total root area
+9% Average nodal root length
+5.2% Skeleton rooting depth
+2.4% Skeleton rooting width
+14.6% Leaf tissue iron concentrations (ppm)
+10.6% Leaf tissue manganese concentrations (ppm)
Click on the interactive map below to view yield results for our biostimulants and bio control.
As harvest continues, this page will be updated regularly as more results are available.

NewLeaf Symbiotics 2020 Product Overview
SEED TREATMENT
IN-FURROW
PIPELINE TREATMENT

SOYBEAN
TERRASYM 401: Biostimulant
NL 12: Biostimulant
NL 13: Biostimulant

CORN
TERRASYM 450: Biostimulant
TERRASYM 201: Biocontrol for the Mitigation of Corn Rootworm
TERRASYM 801: Biostimulant + Biocontrol for the Mitigation of Corn Rootworm (50% rate)

2020 Yield Success Stories
TERRASYM FOR CORN
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 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
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 has been proven to increase yield, improve nutrient uptake, and strengthen roots.
Sign up for emails, follow us on Twitter, and follow our news and insights to be the first to receive exclusive updates and the latest results on our current and pipeline products.

Terrasym has been proven to increase yield, improve nutrient uptake, and strengthen roots.
Sign up for emails, follow us on Twitter, and follow our news and insights to be the first to receive exclusive updates and the latest results on our current and pipeline products.
