共 9 条
- [1] BREMNER JM, 1965, METHODS SOIL ANALY 2
- [3] COILE TS, 1940, 5 DUK U SCH FOR B
- [4] ETHERINGTON JR, 1967, J APPLIED ECOL, V4, P431
- [5] Jackson ML, 1958, SOIL CHEMICAL ANALYS
- [6] OLSON SR, 1965, METHODS SOIL ANALY 2
- [7] PARKINSON D, 1962, SOIL ORGANISMS
- [8] PRATT PF, 1965, METHODS SOIL ANALY 2
- [9] QUARAISHI MS, 1971, PL SOIL, V35, P51