共 72 条
- [1] Alexander M., 1977, Introduction to soil microbiology.
- [3] BARR AJ, 1979, SAS USERS GUIDE
- [4] BERTHET P, 1971, IBP HDB, V18, P186
- [5] Bocock K., 1963, Soil organisms, P85
- [6] BREMNER JM, 1965, METHODS SOIL ANAL, P1146
- [7] BROADBENT F. E., 1957, HILGARDIA, V27, P247