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	Provedor de dados BABT (1) Autor Bianchi,Silmara R. (1) Miyazawa,Mario (1) Oliveira,Edson L. de (1) Pavan,Marcos Antonio (1) Palavra-chave Organic carbon (1) Soil analysis (1) Tropical soils (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2008 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Relationship between the mass of organic matter and carbon in soil BABT Bianchi,Silmara R.; Miyazawa,Mario; Oliveira,Edson L. de; Pavan,Marcos Antonio. The quantity of soil organic matter (SOM) was estimated through the determination of soil organic carbon (SOC) times a factor, which assumes that 58% of the SOM was formed by carbon. A number of soil samples with wide range of SOC content collected in the state of Paraná, Brazil were evaluated in the laboratory. SOC was measured by Walkley-Black method and the total SOM by loss on ignition. The SOC was positively correlated with SOM. The SOM/SOC ratio varied from 1.91 to 5.08 for the soils. It shows that Brazilian SOM has greater oxidation degree. Although, the SOM and SOC decreased with soil depth the SOM/SOC ratio increased. It showed that SOM in the subsoil contained more oxygen but less carbon than the SOM in the upper soil surface. The CEC/SOC also... Tipo: Info:eu-repo/semantics/article Palavras-chave: Organic carbon; Tropical soils; Soil analysis. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000200005 Registros recuperados: 1 Primeira ... 1 ... Última

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