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Comparison of total nitrogen methods applied for histosols and soil horizons with high organic matter content. Author(s): PEREIRA, M. G.; ESPINDULA JÚNIOR, A.; VALLADARES, G. S.; ANJOS, L. H. C. DOS; BENITES, V. de M.; SCHULTZ, N. This study was carried out to correlate total nitrogen analyzed by two different methods: Kjeldahl (wet oxidation) and Perkin-Elmer 2.400 Series II?CHN Mode (dry oxidation or combustion) in Histosols... ... Repository: BDPA Publication year: 2006
Stock of organic carbon in spodic horizons of Brazilian Spodosols. Author(s): MENEZES, A. R. de; FONTANA, A.; ANJOS, L. H. C. dos; PEREIRA, M. G. Soils classified as Spodosols in Brazil occur at different landscapes, from coastal plains to high altitude areas. Although they are present in different environments, these soils are formed mainly un... ... Repository: BDPA Publication year: 2019
Resistance of soil organic matter in "humic A horizons" of the mountainous region in the state of Rio de Janeiro. Author(s): FONTANA, A.; PEREIRA, M. G.; BALIEIRO, F. de C.; CHAGAS, C. da S.; DONAGEMMA, G. K.; OLIVEIRA, L. S de Soils with high organic carbon content, such as those with "humic A horizon", occur in different regions of Brazil. This study aimed to determine the quantitative and qualitative characteristics of or... ... Repository: BDPA Publication year: 2020
Creation of fertile soil horizons (anthrosols) in the pre colombian times by using organic wastes. Author(s): TEIXEIRA, W. G. The process of formation and evolution of distinct anthropic horizons found widespread in Brazil will be reviewed and discussed focusing in the waste management. The Amazonian Dark Earths (Terra Preta... ... Repository: BDPA Publication year: 2015
Organic phosphorus in diagnostic surface horizons of different brazilian soil orders. Author(s): OLIVEIRA, R. I. de; GAMA-RODRIGUES, A. C.; GAMA-RODRIGUES, E. F.; ZAIA, F. C.; PEREIRA, M. G.; FONTANA, A. Em solos tropicais, a disponibilidade de fósforo (P) pode ser regulada pela decomposição e mineralização da fração lábil de P orgânico (Po), tornando necessários estudos para saber a sua real contribu... ... Repository: BDPA Publication year: 2014
Organic carbon determination in histosols and soil horizons with high organic matter content from Brazil. Author(s): PEREIRA, M. G.; VALLADARES, G. S.; ANJOS, L. H. C. DOS; BENITES, V. de M.; ESPÍNDULA JÚNIOR, A. Sistemas taxonômicos distinguem horizontes e/ou camadas minerais das orgânicas baseando-se na quantidade de carbono orgânico. Assim, o procedimento adotado em pesquisas para a quantificação do conteúd... ... Repository: BDPA Publication year: 2006
Carbon and nitrogen stocks and humic fractions in Brazilian organosols. Author(s): VALLADARES, G. S.; PEREIRA, M. G.; BENITES, V. de M.; ANJOS, L. H. C. dos; EBELING, A. G.; GUARESCHI, R. F. Despite limited geographic expression of Organosols in Brazil, their high carbon storage capacity and natural environmental vulnerability justifies further studies on C and N stocks in these soils and... ... Repository: BDPA Publication year: 2016
Comparing methods for extracting heavy metals from Histosols for establishing quality reference values. Author(s): LIMA, E. S. A.; AMARAL SOBRINHO, N. M. B. do; PEREZ, D. V.; COUTINHO, I. B. The diversity of methods for heavy metal extraction from soils complicates comparison of results used by environmental agencies to establish quality reference values. The aim of this study was to eval... ... Repository: BDPA Publication year: 2016
Participação da matéria orgânica na capacidade de troca catiônica em solos antrópicos no Brasil: avaliação de dados secundários. Author(s): FONTANA, A.; CORDEIRO, F. R.; TEIXEIRA, W. G.; CARVALHO, L. F. de; MENEZES, A. R. de O presente trabalho apresenta uma avaliação de dados secundários, oriundos de diversas pesquisas com as TPI no Brasil, partindo da análise de dados quantitativos com vista a discussões qualitativas no... ... Repository: BDPA Publication year: 2017
Soils with dark subsurface horizons in saline basins in the Brazilian Pantanal. Author(s): MENEZES, A. R. de; FONTANA, A.; ANJOS, L. H. C. dos; PEREIRA, M. G.; SCHIAVO, J. A. Soils in the Brazilian Pantanal classified as Espodossolos and registered in the literature diverge from the central concept of pedogenesis by podzolization, especially due to the high values of pH an... ... Repository: BDPA Publication year: 2022

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