共 30 条
- [21] NISSENBAUM A, 1974, GEODERMA, V11, P137, DOI 10.1016/0016-7061(74)90012-3
- [22] PRESTON CM, 1982, CAN J SPECTROSC, V27, P99
- [24] SCHNITZER M., 1965, SOIL SCI SOC AMER PROC, V29, P274
- [25] INFLUENCE OF METALS ON SOLUBILITY OF SOIL ORGANIC-MATTER [J]. GEODERMA, 1975, 13 (02) : 153 - 161
- [26] SEQUI P, 1972, AGROCHIMICA, V16, P224
- [27] NITROGEN, PHOSPHORUS AND SULFUR CONTENTS OF HUMIC ACIDS FRACTIONATED WITH RESPECT TO MOLECULAR-WEIGHT [J]. JOURNAL OF SOIL SCIENCE, 1972, 23 (01): : 50 - +
- [28] VILLA FJG, 1976, BIOCH BIOPHYS RES CO, V72, P1063
- [29] STUDIES OF LITTER AND ACID INSOLUBLE SOIL ORGANIC-MATTER FRACTIONS USING C-13-LABELED CROSS POLARIZATION NUCLEAR MAGNETIC-RESONANCE SPECTROSCOPY WITH MAGIC ANGLE SPINNING [J]. JOURNAL OF SOIL SCIENCE, 1983, 34 (01): : 83 - 97
- [30] YUAN T. L., 1964, SOIL SCI, V98, P133, DOI 10.1097/00010694-196408000-00010