South Carolina Hemp Trial: 25% Higher CBD and Total Cannabinoids with an ABI Microbial Inoculant
Case Studies/Field trial
South Carolina, USA

South Carolina Hemp Trial: 25% Higher CBD and Total Cannabinoids with an ABI Microbial Inoculant

+25% total CBD and cannabinoids, Δ9 THC unchanged at 0.03%

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Hemp
The objective

What the trial set out to test

A commercial hemp grower in South Carolina wanted to increase CBD content and total cannabinoid levels without altering the existing nutrient program or raising the risk of non-compliant Δ9 THC. The trial evaluated whether an ABI microbial consortium of beneficial bacteria and fungi could improve cannabinoid production under matched field conditions. Control and treated plots were analyzed at harvest for Total CBD, Total Cannabinoids, Δ9 THC, Total THC, and moisture.

Starting point

The baseline

The untreated control plot tested at 12.30% Total CBD and 15.61% Total Cannabinoids, with Δ9 THC at 0.03%, Total THC at 0.53%, and moisture at 71.0%. In hemp production, cannabinoid percentage is a major driver of per-pound value, while Δ9 THC compliance, with a federal limit of 0.3%, determines whether a harvest can legally reach the market at all.

The results

What the consortium delivered

The treated plot tested at 15.40% Total CBD, a 25.2% increase, and 19.60% Total Cannabinoids, a 25.6% increase. Δ9 THC measured 0.03%, identical to the control and well within the 0.3% federal limit, while Total THC measured 0.69%. Moisture at harvest was 69.2%, slightly lower than control and favorable for drying. The trial showed higher CBD and total cannabinoids with no increase in measured Δ9 THC.

Flower, side by side
Untreated control flower
Untreated control flower
ABI-treated flower
ABI-treated flower

Built from beneficial bacteria and fungi that ABI manufactures in its own U.S. fermentation facility, including multiple Bacillus and Trichoderma species alongside Brevibacillus, Aspergillus, and Penicillium, each DNA-verified for identity and purity. Explore our strains.

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