共 12 条
[1]
MOLECULAR-WEIGHT AND SHAPE OF HUMIC ACID FROM SEDIMENTATION AND DIFFUSION MEASUREMENTS ON FRACTIONATED EXTRACTS
[J].
JOURNAL OF SOIL SCIENCE,
1972, 23 (04)
:394-408
[2]
Hayes M. H. B., 1978, The Chemistry of Soil Constituents (Greenland, D.J.
[3]
Hayes, M.H.B., Editors)., P179
[4]
INOKO A, 1976, B NATL I AGR SCI, V28, P119
[6]
STEVENSON FJ, 1982, HUMUS CHEM GENESIS C, P285