共 50 条
- [41] ESTIMATION OF THE ENDOGENOUS-N PROPORTIONS IN ILEAL DIGESTA AND FECES IN N-15-LABELLED PIGS ARCHIV FUR TIERERNAHRUNG-ARCHIVES OF ANIMAL NUTRITION, 1987, 37 (10): : 851 - 859
- [45] A LIVER-FUNCTION TEST USING N-15-LABELLED AMMONIUM-CHLORIDE EUROPEAN JOURNAL OF NUCLEAR MEDICINE, 1985, 11 (2-3): : 62 - 64
- [48] Method to avoid isotope discrimination during the diffusion of NH4+ from N-15-labelled soil extracts SOIL BIOLOGY & BIOCHEMISTRY, 1996, 28 (4-5): : 695 - 697
- [50] METHODOLOGY FOR THE QUANTIFICATION OF ROOT AND RHIZOSPHERE NITROGEN DYNAMICS BY EXPOSURE OF SHOOTS TO N-15-LABELLED AMMONIA SOIL BIOLOGY & BIOCHEMISTRY, 1989, 21 (02): : 189 - 196