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Abstract

The sizes of soil organic matter fractions were estimated. The ''old'' humus fraction was estimated to 23.6 t ha(-1) C. The ''active'' and ''young'' humus fractions accounted for 20-61% of the soil organic carbon depending on the level of fertilization and the supply of fresh organic matter. It was stated that those fractions are of great importance for the capacity of the soil to mineralize nitrogen.

Keywords

CARBON, SOIL; MANURE; NITROGEN FERTILIZER; NITROGEN, SOIL; SOIL ORGANIC MATTER

Published in

Agriculture, Ecosystems and Environment
1994, volume: 51, number: 1-2, pages: 249-255
Publisher: ELSEVIER SCIENCE BV

SLU Authors

  • Persson, Jan

    • Department of Soil Sciences, Swedish University of Agricultural Sciences

  • Kirchmann, Holger

    • Department of Soil Sciences, Swedish University of Agricultural Sciences

UKÄ Subject classification

Soil Science
Agricultural Science

Publication identifier

  • DOI: https://doi.org/10.1016/0167-8809(94)90048-5

Permanent link to this page (URI)

https://res.slu.se/id/publ/44219