共 18 条
[2]
BECKING JH, 1977, TREATISE DINITROGEN
[3]
BHATTACH.DP, 1966, INDIAN J AGR SCI, V36, P47
[6]
KARAMSHUK Z P, 1976, Mikrobiologiya, V45, P347
[8]
PATE J. S., 1971, Nitrogen-15 in soil-plant studies. Vienna, Austria, IAEA., P165
[9]
Ruinen J., 1975, International Biological Programme, P85