Estudo comparativo de métodos para a determinação da concentração de carbono em solos com altos teores de Fe (Latossolos)
Carregando...
Data
2008-01-01
Autores
Segnini, Aline
Santos, Larissa Macedo dos
Silva, Wilson Tadeu Lopes da
Martin-Neto, Ladislau
Borato, Carlos Eduardo
Melo, Wanderley José de [UNESP]
Bolonhezi, Denizart
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
Soil organic matter (SOM) plays an important role in physical, chemical and biological properties of soil. Therefore, the amount of SOM is important for soil management for sustainable agriculture. The objective of this work was to evaluate the amount of SOM in oxisols by different methods and compare them, using principal component analysis, regarding their limitations. The methods used in this work were Walkley-Black, elemental analysis, total organic carbon (TOC) and thermogravimetry. According to our results, TOC and elemental analysis were the most satisfactory methods for carbon quantification, due to their better accuracy and reproducibility.
Descrição
Palavras-chave
soil organic matter, carbon quantification methods, statistical evaluation
Como citar
Química Nova. Sociedade Brasileira de Química, v. 31, n. 1, p. 94-97, 2008.