Claim · model-written summary
A 40 Mg ha −1 biochar application enhanced plant K accumulation by 55% without lime.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- 40 Mg ha −1 biochar applicatione1
- Outcome
- plant K accumulatione1
- Direction
- enhancede1
- Value
- 55%e1
- Qualifier
- even without limee1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“cowpea ( Vigna unguiculata [L.] Walp.)”
e1“A 40 Mg ha −1 biochar application increased soil pH by 0.52 units, reduced exchangeable Al by up to 53%, and enhanced plant K accumulation by 55%, even without lime”
Title
Criscian Kellen Amaro de Oliveira Danielli; Antonio Leite Florentino; Filipe Eduardo Danielli; et al. Biomass and Bioenergy 2026. doi:10.1016/j.biombioe.2026.109378
Other claims from this paper (7)
- Intervention effect A 40 Mg ha −1 biochar application increased soil pH by 0.52 units.
- Intervention effect A 40 Mg ha −1 biochar application reduced exchangeable soil Al by up to 53%.
- Intervention effect Intermediate to high biochar with 25–50% lime improved soil K, B and Cu availability.
- Intervention effect Intermediate to high biochar with 25–50% lime improved soil Zn availability.
- Intervention effect Cowpea shoot biomass showed limited response to biochar.
- Intervention effect Biochar increased cowpea Cu and Zn uptake.
- Recommendation The authors propose açaí biochar with reduced lime to improve fertility and uptake.