Incorporation and extractability of residual 15N in a coniferous forest soil

The effect of 15N labelling duration (24 h, 7 and 31 months) on the incorporation and extractability of residual 15N in the humus (H) horizon of a Humo-Ferric Podzol was investigated. Extractability of residual 15N was studied using 2 m KCl, 0.5 m K 2SO 4, autoclaving with 10 m m CaCl 2, and acidic...

Full description

Saved in:
Bibliographic Details
Published in:Soil biology & biochemistry 1998-08, Vol.30 (8), p.1023-1031
Main Authors: Chang, S.X., Preston, C.M.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Chemical, physicochemical, biochemical and biological properties
Fundamental and applied biological sciences. Psychology
Organic matter
Physics, chemistry, biochemistry and biology of agricultural and forest soils
Soil science
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of 15N labelling duration (24 h, 7 and 31 months) on the incorporation and extractability of residual 15N in the humus (H) horizon of a Humo-Ferric Podzol was investigated. Extractability of residual 15N was studied using 2 m KCl, 0.5 m K 2SO 4, autoclaving with 10 m m CaCl 2, and acidic permanganate and fumigation-extraction. Incorporation of 15N into the classical fulvic acid (FA), humic acid (HA) and humin fractions was also studied. Greater amounts of total and applied (fertilizer) N were extracted from the 24 h than from the 7 and 31 months treatments ( P
ISSN:0038-0717
1879-3428
DOI:10.1016/S0038-0717(97)00276-9