Variations of Nitrogen-15 Abundance in Soils.
作者： H. H. Cheng , J. M. Bremner , A. P. Edwards
DOI: 10.1126/SCIENCE.146.3651.1574
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摘要: … determination and isotope-ratio analysis of different forms of … for isotope-ratio analysis of different forms of nitrogen in soils were … studies of sources of error in N" analyses (6). For the …
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