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Fractionation of Nitrogen in Three Forest Soils
Author(s) -
Jorgensen J. R.
Publication year - 1967
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1967.03615995003100050028x
Subject(s) - humin , soil water , fractionation , hydrolysis , nitrogen , chemistry , amino sugar , sugar , agronomy , environmental chemistry , environmental science , biology , soil science , soil organic matter , chromatography , biochemistry , organic chemistry
Soil nitrogen of forested Georgeville, Colfax, and Iredell soils from the North Carolina Piedmont was separated into six fractions. Amino acid N made up over 50% of soil N, while hydrolyzed NH 4 + + amino sugar‐N was 22% of the total N. Proportions of exchangeable NH 4 + + NO 3 − , insoluble humin N, and hydrolyzed NH 4 + + amino sugar N differed with soil. The differences appeared to be related to base saturation and pH.