Characterization of two humic acid fractions from a calcareous vermiculitic soil: implications for the humification process

Author: Olk D.C.   Cassman K.G.   Fan T.W.M.  

Publisher: Elsevier

ISSN: 0016-7061

Source: Geoderma, Vol.65, Iss.3, 1995-03, pp. : 195-208

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Abstract