Increase in cation exchange capacity by the action of maize rhizosphere on Mg or Fe biotite-rich rocks

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dc.creatorLuise Lottici Krahl
dc.creatorGiuliano Marchi
dc.creatorSimone Patrícia Aranha Paz
dc.creatorRômulo Simões Angélica
dc.creatorJosé Carlos Sousa-Silva
dc.creatorLeonardo Fonseca Valadares
dc.creatorÉder de Souza Martins
dc.date2022
dc.date.accessioned2026-07-07T04:30:52Z
dc.descriptionThe weathering of some silicate minerals in crushed rocks may occur in a few days of cropping and generate different physicochemical properties, with potential benefits to tropical soils. This study aimed to investigate the infuence of maize (Zea mays L.) rhizosphere on the weathering products and on the cation exchange capacity of Mg-biotite from biotite schist and Fe-biotite from biotite syenite. An experiment was carried out in pots, so that plants and crushed rock materials could be evaluated during seven successive growth cycles. The nutrients iron and potassium were taken up from biotite schist and biotite syenite during cropping. The weathering of both biotites promoted by the rhizosphere caused mineralogical changes. The most expressive change in the X-ray diffraction patterns occurred in the < 53 µm particle size fraction; however, the 53-300 µm fractions also changed. The alteration in the Mg-biotite, which has a lower Fe/Mg relation in octahedral sites than the Fe-biotite, was responsible for the most expressive cation exchange capacity increase in the fractions < 300 µm. However, the Fe-biotite weathering process, which presents a higher Fe/Mg relation in octahedral sites, did not increase the cation exchange capacity.
dc.formatapplication/pdf
dc.identifier1517-6398
dc.identifierhttps://www.redalyc.org/articulo.oa?id=253070366036
dc.identifierhttps://www.redalyc.org/journal/2530/253070366036/
dc.identifierhttps://www.redalyc.org/journal/2530/253070366036/html/
dc.identifierhttps://www.redalyc.org/journal/2530/253070366036/253070366036.epub
dc.identifierhttps://www.redalyc.org/journal/2530/253070366036/movil
dc.identifier10.1590/1983-40632022v5272376
dc.identifier.urihttp://hdl.handle.net/123456789/463682
dc.languageen
dc.publisherUniversidade Federal de Goiás
dc.relationhttp://www.redalyc.org/revista.oa?id=2530
dc.rightsPesquisa Agropecuária Tropical
dc.sourcePesquisa Agropecuária Tropical (Brasil) Vol.52
dc.subjectAgrociencias
dc.titleIncrease in cation exchange capacity by the action of maize rhizosphere on Mg or Fe biotite-rich rocks
dc.typeartículo científico

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Pesquisa Agropecuária Tropical - Universidade Federal de Goiás