共 93 条
- [1] ABDELMALEK Y, 1974, ZENTRALBL BAKTERIOL, P415
- [4] BETLACH MR, 1982, A VAN LEEUW J MICROB, V48, P585
- [7] Christensen S., 1988, Nitrogen efficiency in agricultural soils. Proceedings Symposium Edinburgh, 16-18 Sept. 1987., P295
- [9] DUXBURY JM, 1986, FIELD MEASUREMENT DI, P73
- [10] FEDEROVA RI, 1973, IZV AKAD NAUK ARM SS, P797