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- [26] THE INFLUENCE OF SEED-BORNE N IN N-15 ISOTOPE-DILUTION STUDIES WITH LEGUMESACTA AGRICULTURAE SCANDINAVICA, 1985, 35 (04): : 438 - 443JENSEN, ESANDERSEN, AJTHOMSEN, JD
- [27] SITE VARIABILITY EFFECT ON FIELD MEASUREMENT OF SYMBIOTIC NITROGEN-FIXATION USING THE N-15 ISOTOPE-DILUTION METHODSOIL BIOLOGY & BIOCHEMISTRY, 1987, 19 (04): : 405 - 409REICHARDT, KHARDARSON, GZAPATA, FKIRDA, CDANSO, SKA
- [28] Synthesis of [N-15,N-15']-N,N,N',N'-tetramethylethylenediamine and its use in solvation studies of [Li-6]-n-butyllithiumJOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (23) : 5479 - 5480Waldmuller, DKotsatos, BJNichols, MAWilliard, PG
- [29] NITROGEN-FIXATION BY NODULATED SOYBEAN UNDER TROPICAL FIELD CONDITIONS ESTIMATED BY THE N-15 ISOTOPE-DILUTION TECHNIQUESOIL BIOLOGY & BIOCHEMISTRY, 1984, 16 (06): : 583 - 588BODDEY, RMCHALK, PMVICTORIA, RLMATSUI, E
- [30] ISOTOPIC STUDIES ON UPTAKE OF NITROGEN BY PASTURE PLANTS .5. N-15 BALANCE EXPERIMENTS IN FIELD MICROPLOTSAUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 1973, 24 (05): : 693 - 702VALLIS, IHENZELL, EFMARTIN, AEROSS, PJ