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Assess the impact of biochar from pig manure digestate on ammonia emissions, soil properties, and plant growth.

February 9, 2026Open Access

Benefits of pig manure digestate‑derived biochar on soil properties and plant growth

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Experiments assess biochar's role in ammonia emissions and plant growth using various fertilizers, suggesting its benefits.

Assess the impact of biochar from pig manure digestate on ammonia emissions, soil properties, and plant growth.
Conducted a two-way trial in controlled chambers using biochar at 1.5% and 3.0% concentrations.
Applied synthetic and organic fertilizers including urea, liquid digestate, and pelletized organic chicken manure.
Measured ammonia emissions, soil pH, and plant biomass after a 4-week growth period.
Reduced ammonia emissions in urea treatments with 3% and 1.5% biochar.
Increased soil pH and microbial activity associated with specific fertilizer types and biochar doses.
Enhanced plant biomass observed with specific combinations of biochar and fertilizers.

Louati et al. (2025) studied this question.

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