Biochar-based fertilizer effects on crop productivity: a meta-analysis

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorMelo, Leônidas Carrijo Azevedo-
Autor(es): dc.creatorLehmann, Johannes-
Autor(es): dc.creatorCarneiro, Jefferson Santana da Silva-
Autor(es): dc.creatorCamps-Arbestain, Marta-
Data de aceite: dc.date.accessioned2026-02-09T11:37:48Z-
Data de disponibilização: dc.date.available2026-02-09T11:37:48Z-
Data de envio: dc.date.issued2022-08-16-
Data de envio: dc.date.issued2022-08-16-
Data de envio: dc.date.issued2022-01-26-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/50984-
Fonte completa do material: dc.identifierhttps://link.springer.com/article/10.1007/s11104-021-05276-2-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1143898-
Descrição: dc.descriptionAim: biochar-based fertilizers (BBF) have gained increasing interest in recent years, yet their effects on crop productivity have not been reviewed. Methods: we conducted a meta-analysis of the published literature (2011-2021) using 148 pairwise comparisons between crop productivity after additions of BBF, of conventional fertilizers (fertilized control), and a non-fertilized control. Results: on average, BBF applied at very low application rates (mean of 0.9 t ha−1) increased crop productivity by 10% compared with fertilized controls and 186% compared with non-fertilized controls. This mean crop productivity increase is comparable to that reported when biochar is used as a soil conditioner (i.e., 15 t-30 t ha−1 to increase crop productivity by 10%). This crop yield increase suggests that biochar acts as a matrix to increase fertilizer use efficiency to a larger extent than conventional fertilizer alone. Cluster analysis revealed that BBFs have the potential to increase crop productivity by 15% when added to soils that are not responsive to conventional fertilizers. BBF produced at a highest heating temperature (HHT) of >400 °C increased crop productivity by 12% as opposed to those produced at a HHT of ≤400 °C that showed no increase. BBF with C contents >30% in the final mixture caused the largest increase in crop productivity by 17%, whereas those with C contents ≤30% had no effect. Conclusion: this study has shown that biochar can be an effective constituent of novel fertilizers with enhanced efficiency, which may contribute to lower nutrient losses and lower negative environmental impacts.-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourcePlant and Soil-
Palavras-chave: dc.subjectBiochar-
Palavras-chave: dc.subjectCrop production-
Palavras-chave: dc.subjectEnhanced-efficiency fertilizer-
Palavras-chave: dc.subjectNutrient use efficiency-
Palavras-chave: dc.subjectOrgano-mineral fertilizers-
Título: dc.titleBiochar-based fertilizer effects on crop productivity: a meta-analysis-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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