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dc.contributor.authorFIGUEIREDO, C. C. dept_BR
dc.contributor.authorRESCK, D. V. S.pt_BR
dc.contributor.authorCARNEIRO, M. A. C.pt_BR
dc.date.accessioned2013-07-17T11:11:11Zpt_BR
dc.date.available2013-07-17T11:11:11Zpt_BR
dc.date.created2013-07-17pt_BR
dc.date.issued2010pt_BR
dc.identifier.citationRevista Brasileira de Ciência do Solo, n. 34, p. 907-916, 2010.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/962310pt_BR
dc.descriptionSoil organic matter can be analyzed on the basis of the different fractions. Changes in the levels of organic matter, caused by land use, can be better understood by alterations in the different compartments. The aim of this study was to evaluate the effect of different management systems on the labile and stable organic matter of a dystrophic Red Latosol (Oxisol). The following properties were determined: total organic C and total N (TOC and TN), particulate organic C and particulate N (POC and PN), organic C and N mineral-associated (MOC and NM) and particulate organic C associated with aggregate classes (POCA). Eight treatments were used: seven with soil management systems and one with native Cerrado as a reference. The experiment was designed to study the dynamics of systems of tillage and crop rotation, alternating in time and space. The experimental design was a randomized block design with three replications. The soil samples were collected from five depths: 0–5, 5-10, 10–20, 20–30 and 30–40 cm. Changes in organic C by land use occurred mainly in the fraction of particulate organic matter (> 53 mm). Proper management of grazing promoted increased levels of particulate organic matter by association with larger aggregates (2–8 mm), demonstrating the importance of the formation of this aggregate class for C protection in pasture.eng
dc.language.isoengpt_BR
dc.rightsopenAccesspt_BR
dc.titleLabile and stable fractions of soil organic matter under management systems and native cerrado.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2013-10-08T11:11:11Zpt_BR
dc.subject.thesagroCerradopt_BR
dc.subject.thesagroMatéria Orgânicapt_BR
dc.subject.thesagroPastagempt_BR
dc.subject.thesagroPlantio Diretopt_BR
dc.subject.thesagroRotação de Culturapt_BR
dc.subject.thesagroSolopt_BR
dc.subject.nalthesaurusNo-tillagept_BR
dc.subject.nalthesaurusParticulate organic carbonpt_BR
dc.subject.nalthesaurusSoilpt_BR
dc.subject.nalthesaurusOrganic mattereng
dc.subject.nalthesaurusPastureseng
dc.subject.nalthesaurusSavanna soilseng
riaa.ainfo.id962310pt_BR
riaa.ainfo.lastupdate2013-10-08pt_BR
dc.contributor.institutionCÍCERO CÉLIO DE FIGUEIREDO, UNIVERSIDADE DE BRASÍLIApt_BR
dc.contributor.institutionDIMAS VITAL SIQUEIRA RESCK, CPACeng
dc.contributor.institutionMARCO AURÉLIO CARBONE CARNEIRO, UNIVERSIDADE FEDERAL DE GOIÁS.eng
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