Coffee waste as an eco-friendly and low-cost alternative for biochar production impacts on sandy soil chemical attributes and microbial gene abundance

dc.contributor.authorSilva, Cintia Caroline Gouveia da
dc.contributor.authorMedeiros, Erika Valente de
dc.contributor.authorFracetto, Giselle Gomes Monteiro
dc.contributor.authorFracetto, Felipe José Cury
dc.contributor.authorMartins Filho, Argemiro Pereira
dc.contributor.authorLima, José Romualdo de Sousa
dc.contributor.authorDuda, Gustavo Pereira
dc.contributor.authorCosta, Diogo Paes da
dc.contributor.authorLira Junior, Mário Andrade
dc.date.accessioned2021-12-02T12:34:32Z
dc.date.available2021-12-02T12:34:32Z
dc.date.issued2021
dc.description.abstractBiochar is a material produced by the pyrolysis of agro-industrial waste, which has become one of the most promising management tools to improve soil quality. The aim was to determine the effects of incorporating biochar from different coffee wastes in sandy soil, cropped with maize, on soil chemical and microbial attributes. The experiment followed a factorial design 2 × 3 + 1 with two types of biochar, including coffee ground (CG) or coffee husk (CH) in 3 doses (4, 8, and 16 t·ha-1) and a control fertilized solely with bovine manure (3 t·ha-1). The variables analyzed were soil organic carbon, chemical attributes, microbial biomass (C, N and P), soil basal respiration and microbial gene abundance (16S rRNA, 18S rRNA and nifH gene). Most chemical attributes were strongly increased by CH application, while CG at 8 t·ha-1 increased the soil C:N ratio (3.5 times), P (2.1 times) and K+ (7.9 times) and at 4 t·ha-1 increased the C content, microbial biomass C and N (3, 2.1 and 1.6 times, respectively). The application of CG biochar at 16 t·ha-1 showed trend to increase the abundance of bacteria, fungi and diazotrophic genes (11, 10 and 2%, respectively). Contribution of both coffee biochar types, but mainly CH, was more effective than the soil that received organic manure alone. Biochar from coffee wastes is a promising tool to improve sandy soil quality.pt_BR
dc.formatpdfpt_BR
dc.identifier.citationSILVA, C. C. G. et al. Coffee waste as an eco-friendly and low-cost alternative for biochar production impacts on sandy soil chemical attributes and microbial gene abundance. Bragantia, Campinas, v. 80, p. 1-16, 2021.pt_BR
dc.identifier.issn1678-4499
dc.identifier.urihttps://doi.org/10.1590/1678-4499.20200459pt_BR
dc.identifier.urihttp://www.sbicafe.ufv.br/handle/123456789/12864
dc.language.isoenpt_BR
dc.publisherInstituto Agronômico (IAC)pt_BR
dc.relation.ispartofseriesBragantia;v.80, 2021
dc.rightsOpen Accesspt_BR
dc.subjectBiocarbonpt_BR
dc.subject16S rRNApt_BR
dc.subject18S rRNApt_BR
dc.subjectnifHpt_BR
dc.subject.classificationCafeicultura::Resíduos e subprodutos do cafépt_BR
dc.titleCoffee waste as an eco-friendly and low-cost alternative for biochar production impacts on sandy soil chemical attributes and microbial gene abundancept_BR
dc.typeArtigopt_BR

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