共 50 条
- [35] N-2-FIXATION IN FIELD SETTINGS - ESTIMATIONS BASED ON NATURAL N-15 ABUNDANCE AUSTRALIAN JOURNAL OF PLANT PHYSIOLOGY, 1986, 13 (06): : 699 - 756
- [36] Estimation of N-2 fixation by N-15 isotope dilution - The A-value approach SOIL BIOLOGY & BIOCHEMISTRY, 1996, 28 (09): : 1123 - 1130
- [40] INCORPORATION AND METABOLISM OF N-15 DURING FORMATION OF SUGAR IN BEET ZUCKERINDUSTRIE, 1978, 103 (04): : 308 - 311