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Soil Science Society of America Journal Abstract -

Fractionation of Nitrogen in Three Forest Soils1


This article in SSSAJ

  1. Vol. 31 No. 5, p. 707-708
    Received: June 11, 1967
    Accepted: July 20, 1967

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  1. J. R. Jorgensen2



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 NH4+ + amino sugar-N was 22% of the total N. Proportions of exchangeable NH4+ + NO3, insoluble humin N, and hydrolyzed NH4+ + amino sugar N differed with soil. The differences appeared to be related to base saturation and pH.

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