Pedosphere 1(3): 283--287, 1991
ISSN 1002-0160/CN 32-1315/P
©1991 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Content and Partial Characterization of Unknown N in Humic Acids
Department of Soil Biochemistry, Institute of Soil Science, A cademia Sinica, P.O. Box 821, Nanjing 210008
      INTRODUCTION Nitrogen is a key component of soil organic matter. Only when we have succeeded in characterizing the major part of organic N-containing compounds will we be able to understand fully the transformation reactions in the soil and to use soil-N more efficiently. However, only about 1/4-1/2 of the total N in humic acid (HA), one of the major constituents of soil organic matter, can be accounted for as amino acids and amino sugars, and most of the remainder has still to be accounted for.
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Citation: Ye, W., Cheng, L. L. and Wen, Q. X. 1991. Content and Partial Characterization of Unknown N in Humic Acids. Pedosphere. 1(3): 283-287.
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