A THERMAL ANALYTICAL STUDY OF SOIL ORGANIC-MATTER FORMATION FROM GRASS RESIDUES AND COMPOST

Autor(en): LEINWEBER, P
Stichwörter: Chemistry; Chemistry, Analytical; Chemistry, Physical; COMPOST APPLICATION; DECOMPOSITION; HUMIC SUBSTANCES; MINERAL FERTILIZATION; ORGANO-MINERAL PARTICLE-SIZE FRACTIONS; SOIL ORGANIC MATTER (SOM); Thermodynamics
Erscheinungsdatum: 1993
Herausgeber: JOHN WILEY & SONS LTD
Journal: JOURNAL OF THERMAL ANALYSIS
Volumen: 39
Ausgabe: 4
Startseite: 457
Seitenende: 466
Zusammenfassung: 
The formation of soil organic matter (SOM) was studied in organo-mineral particle-size fractions during 34 years of a pot experiment with mineral fertilization and compost application. The DTA curves indicated the presence of varying amounts of absorbed water, SOM, quartz and carbonate minerals in the samples. The development of the organo-mineral fractions was characterized by the enrichment of SOM and decreased amounts of carbonate minerals. The DTA curves and TG weight losses pointed to considerable thermal stabilization of the newly formed SOM. The most marked effects of the compost application were attributed to organic substances which were decomposed at 250-degrees-400-degrees-C.
ISSN: 03684466

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