Química Nova | |
Comparative study of carbon quantification methods in soil with high Fe contents (Oxisols) | |
Empresa Brasileira de Pesquisa Agropecuária, São Carlos, Brasil1  Silva, Wilson Tadeu Lopes da1  Martin-Neto, Ladislau1  Segnini, Aline1  Borato, Carlos Eduardo1  Santos, Larissa Macedo dos1  Bolonhezi, Denizart1  Agência Paulista de Tecnologia dos Agronegócios Centro Leste, Ribeirão Preto, Brasil1  Melo, Wanderley José de1  Universidade de São Paulo, São Carlos1  Universidade Estadual Paulista, Jaboticabal, Brasil1  | |
关键词: soil organic matter; carbon quantification methods; statistical evaluation.; | |
DOI : 10.1590/S0100-40422008000100020 | |
学科分类:化学(综合) | |
来源: Sociedade Brasileira de Quimica | |
【 摘 要 】
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.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912050594032ZK.pdf | 149KB | download |