共 31 条
- [1] ALLISON LE, 1965, AGRONOMY, V9, P1375
- [2] ALLISON LE, 1965, METHODS SOIL ANALY 2
- [3] ANDERSON DW, 1972, THESIS U SASAKTCHEWA
- [4] BARDSLEY C. E., 1960, SOIL SCI SOC AMER PROC, V24, P265
- [6] Bremner J.M., 1965, METHODS SOIL ANAL PA, P1149
- [7] BREMNER JM, 1965, METHODS SOIL ANALY 2
- [9] de LONG W. A., 1962, CANADIAN JOUR SOIL SCI, V42, P223