Gavinelli Evelyne, Feller Christian, Larré Larrouy Marie-Christine, Bacye B., Djegui N., Nzila J. de D. (1995). A routine method to study soil organic matter by particle-size fractionation : examples for tropical soils. Communications in Soil Science and Plant Analysis, 26 (11/12), p. 1749-1760.
Titre du document
A routine method to study soil organic matter by particle-size fractionation : examples for tropical soils
Année de publication
1995
Type de document
Article
Auteurs
Gavinelli Evelyne, Feller Christian, Larré Larrouy Marie-Christine, Bacye B., Djegui N., Nzila J. de D.
Source
Communications in Soil Science and Plant Analysis, 1995,
26 (11/12), p. 1749-1760
Particle size fractionation is becoming commonly used for studying soil organic matter (OM). However, isolation of clay and silt represents a long and thus tedious step in the fractionation procedure. We propose an approach identical to the one utilized in particle size analysis with an estimation of the recoveries from aliquots ("aliquot" method) of the 0-2 and 0-20 micrometer fractions and no entire isolation ("decanting" method) of clay and silt. In comparison with the "decanting" method, the fraction and carbon (C) recoveries obtained by the "aliquot" method were satisfactory, but those of nitrogen (N) being hardly interpretable because of an insufficient accuracy of the determination method. The recommended method saves time and laboratory space and could be used as a routine particle size fractionation of soil OM. Finally, this paper lists various methodological aspects of considerable significance but rarely reported in published studies. (Résumé d'auteur)
Plan de classement
Techniques d'analyse et approches méthodologiques [068ANASOL]
