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	Provedor de dados Scientia Agricola (1) Autor Berton,Ronaldo (1) Bettiol,Wagner (1) Camargo,Otávio Antonio de (1) Colnago,Luiz Alberto (1) González Pérez,Martha (1) Martin-Neto,Ladislau (1) Milori,Débora Marcondes Bastos Pereira (1) Mais... Palavra-chave Chemical fractions (1) Particle size fraction (1) Spectroscopy (1) Tropical soil (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2006 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Laser-induced fluorescence of organic matter from a Brazilian Oxisol under sewage-sludge applications Scientia Agricola González Pérez,Martha; Milori,Débora Marcondes Bastos Pereira; Martin-Neto,Ladislau; Colnago,Luiz Alberto; Camargo,Otávio Antonio de; Berton,Ronaldo; Bettiol,Wagner. Sludge applications have been used to maintain fertility of agricultural soils without damaging the natural ecosystem. The aim of this study was evaluating the influence of sewage-sludge addition on the quality of organic matter (OM) of a Brazilian Oxisol by Laser Induced Fluorescence (LIF). LIF was used to analyze OM of whole soil and different soil fractions separated by chemical and physical methods. The high fluorescence contribution of humin fraction to the fluorescence of whole soils was shown, stressing the importance of studying OM associated to mineral matrix of soil. Spectra with different shapes were obtained for every particle size fraction, indicating differences in organic compounds bounded to them. The fraction with the higher carbon content... Tipo: Info:eu-repo/semantics/article Palavras-chave: Tropical soil; Spectroscopy; Particle size fraction; Chemical fractions. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000300009 Registros recuperados: 1 Primeira ... 1 ... Última

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