共 23 条
[1]
Bremner J. M., 1996, METHODS SOIL ANAL 3, P1085
[3]
DYE M, 1979, ROTHAMSTED COLLECTIO
[7]
GRAHAM PH, 1977, U HAWAII COLLEGE TRO, V145, P313
[8]
LEBARON MJ, 1974, U IDAHO CURR INFORM, V228
[10]
Rennie R. J., 1978, International Atomic Energy Agency: Isotopes in biological dinitrogen fixation. (Proceedings of an advisory group meeting, Vienna, 21-25 November, 1977)., P107