共 14 条
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- [2] ALEKSANDROVA LN, 1960, SOV SOIL SCI, V2, P190
- [3] DISTRIBUTION OF PYROPHOSPHATE-EXTRACTABLE IRON AND ORGANIC CARBON IN SOILS OF VARIOUS GROUPS [J]. JOURNAL OF SOIL SCIENCE, 1968, 19 (02): : 251 - +
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- [5] DUCHAUFOUR P, 1964, SCIENCE SOL, V2, P3
- [6] THE USE OF CHELATING REAGENTS AND ALKALINE SOLUTIONS IN SOIL ORGANIC-MATTER EXTRACTION [J]. JOURNAL OF SOIL SCIENCE, 1959, 10 (01): : 110 - 118
- [7] JURDANT ML, 1968, THESIS CORNELL U
- [8] KONONOVA MM, 1967, SOV SOIL SCI, V7, P894