Claim · model-written summary
Biochar increased plant biomass.
- Taxon
- clover (Trifolium pratense) and mustard (Brassica juncea)
Brassica juncea
Trifolium pratensee2 - Treatment
- Biochare6
- Outcome
- plant biomasse6
- Direction
- increasede6
- Setting
- urban field trialt0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“in clover (Trifolium pratense) and mustard (Brassica juncea) field plots”
e6“Biochar increased plant biomass, mustard phosphorus and reduced plant uptake of several trace metals in both mustard and clover plants”
t0“Effects of basalt and biochar addition on base cations and trace metals in plants and soil in an urban field trial”
Title
Arthur Vienne; Jennifer Newell; Jasper Roussard; et al. Biogeosciences 2026. doi:10.5194/bg-23-1681-2026
Other claims from this paper (9)
- Intervention effect Basalt did not increase soil inorganic carbon, Tessier-extractable base cations or dissolved inorganic carbon in leachates.
- Intervention effect Basalt increased Ni and Cr in the reducible soil fraction.
- Intervention effect Basalt did not elevate plant metal concentrations in clover and mustard.
- Intervention effect Basalt tended to reduce Ni and Zn in leachates.
- Intervention effect Basalt did not affect any of the 33 assessed elements in aboveground plant biomass.
- Intervention effect Biochar increased mustard phosphorus.
- Intervention effect Biochar reduced plant uptake of several trace metals in mustard and clover.
- Intervention effect Co-amendment with basalt and biochar gave no synergistic gains in biomass or reductions in plant heavy metals.
- Intervention effect Co-application of basalt and biochar did not produce observable rock weathering.