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Revista Brasileira de Ciência do Solo

versão On-line ISSN 1806-9657

Resumo

GONCALVES, Daniele et al. Mineralogy of a red latosol under different management systems for twenty-four years. Rev. Bras. Ciênc. Solo [online]. 2008, vol.32, n.spe, pp.2647-2652. ISSN 1806-9657.  http://dx.doi.org/10.1590/S0100-06832008000700006.

The search for management systems that preserve or improve soil qualities, the mineralogical as well as the organic composition, with a view to higher yields, is becoming more and more intense. The objective this study was to qualitatively verify the mineralogical effects of different management types: conventional , minimum and no-tillage for 24 years on a Red Latosol in Ponta Grossa, PR, Brazil, by the following techniques: X-ray diffraction, X-ray fluorescence and Fourier transform infrared. No significant changes in the mineralogy of the Red Latosol were observed by the techniques applied, as a result of the different management types. It was however possible to qualitatively verify the presence of the following minerals: gibbsite, kaolinite, halloysite, montmorillonite, hematite, rutile, anatase, goethite and quartz.

Palavras-chave : conventional tillage; minimum tillage; no-tillage; mineralogy.

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