Biochar as a mitigator of copper toxicity and phytoremediation potential of Swietenia macrophylla King.

Biochar as a mitigator of copper toxicity and phytoremediation potential of Swietenia macrophylla King. | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Biochar as a mitigator of copper toxicity and phytoremediation potential of Swietenia macrophylla King. Raphael Leone da Cruz Ferreira, Dayse Gonzaga Braga, Vitor Resende do Nascimento, and 11 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7227967/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Heavy metal contamination promotes soil degradation, reduces fertility, and affects crop growth. Therefore, the use of residues from the açaí (Euterpe oleracea Mart.) agroindustry for biochar production, associated with the cultivation of plants with potential to phytoremediate contaminated soils, such as Brazilian mahogany (Swietenia macrophylla King.), is a promising and sustainable strategy to mitigate the toxic effects of the metal. The study was conducted to evaluate the impact of BCA in mitigating excess Cu, exploring its effects on plant growth and levels, and to investigate the phytoremediation potential of the species exposed to Cu toxicity in the soil. The design was randomized blocks with five blocks, in a 4x3 factorial scheme, with the control treatment (without Cu) and three doses of copper (200, 400, and 600 mg kg-1) and three levels of BCA (0%, 5%, and 10%), totaling sixty experimental units. The application of 5% BCA attenuated Cu toxicity in soils up to 400 mg kg-1, with adequate Cu levels in the aerial part and accumulation in the roots, without compromising the biomass. In addition, Brazilian mahogany has a phytoremediation capacity of Cu up to 200 mg kg-1, and when associated with 5% BCA, it phytostabilized the metal up to a concentration of 400 mg kg-1. The selection of the species and the use of BCA can recover soils contaminated by Cu, being an excellent candidate in recovery programs of areas contaminated by metals in the Amazon. heavy metals residue charcoal phytoremediation brazilian mahogany Full Text Additional Declarations Author Contributions R.L.C.F. conceived the study and led the writing of the manuscript. D.G.B. and V.R.N. contributed to the study design and data analysis. L.C.M., T.M.S., and C.B.S. participated in field data collection and species identification. A.C.B.A. and J.A.C.C. contributed to literature review and manuscript formatting. F.J.R.C. and E.D.C. supported statistical analysis and interpretation of results. A.S.B. and C.B.A. contributed to methodological guidance and data curation. L.C.S. and C.F.O.N. supervised the project and contributed to manuscript revision. All authors read and approved the final version of the manuscript. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7227967","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":501512671,"identity":"e0a9f63d-b9ef-4ac2-b60c-043f30866a5d","order_by":0,"name":"Raphael Leone da Cruz 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