共 28 条
- [1] [Anonymous], RESOURCE COMPETITION
- [2] [Anonymous], 1976, STANDARD METHODS EXA
- [3] BEALS EW, 1964, ECOLOGY, V45, P777, DOI 10.2307/1934925
- [6] BORMANN FH, 1979, AM SCI, V67, P660
- [8] BREMNER J. M., 1965, Monographs of the American Society of Agronomists, V9, P1179
- [10] Chapman H. D., 1965, METHODS SOIL ANAL, P891