Peer-Reviewed Study Demonstrates Environmental Benefits of Hemp-Derived Biochar
A team at the Hebrew University of Jerusalem released findings this week showing that biochar produced from industrial hemp stalks significantly improves degraded soil structure and reduces heavy-metal uptake in subsequent crops. The two-year field trial, conducted in partnership with the Israel Ministry of Environmental Protection, measured a 34% increase in water retention and a 19% drop in lead bioavailability.
Researchers processed stalks through slow pyrolysis at 550°C, yielding a stable carbon-rich amendment that sequesters approximately 2.8 tons of CO2 per hectare annually when applied at standard rates.
Implications for Sustainable Agriculture
The study adds to growing evidence that hemp can serve dual purposes: supplying industrial fiber while generating soil amendments that support regenerative farming. Lead author Dr. Rachel Levin emphasized that the work focused exclusively on agronomic outcomes and did not examine any cannabinoid-related endpoints.
Participating farms reported improved yields in follow-on wheat and tomato plantings without additional fertilizer inputs. The team is now scaling the process to a 50-hectare demonstration site in the Negev region.
Broader Industry Relevance
International observers note the findings could influence carbon-credit methodologies that reward hemp growers for biochar production. Several European agribusinesses have contacted the research group about licensing the pyrolysis parameters for use in their own supply chains.
The paper appears in the May 2026 issue of the journal Agriculture, Ecosystems & Environment and is available under open-access terms.
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