共 14 条
[1]
Brockwell J., 1980, Methods for evaluating biological nitrogen fixation., P417
[2]
Gibson A. H., 1980, Methods for evaluating biological nitrogen fixation., P139
[3]
KOHL DH, 1979, STABLE ISOTOPES, P317
[4]
KOHL DH, 1982, STABLE ISOTOPES, P451
[5]
MARIOTTI A, 1978, ANALUSIS, V6, P421
[6]
MARIOTTI A, 1980, PHYSIOL VEG, V18, P163
[7]
MARIOTTI A, 1982, MEMOIRES SCI TERRE U, V8213
[8]
SITE OF NATURAL N-15 ENRICHMENT OF SOYBEAN NODULES
[J].
PLANT PHYSIOLOGY,
1983, 72 (01)
:256-258