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TRANSFORMATION OF N-15-LABELED AMMONIUM IN 2 SOILS DIFFERING IN NH-4+-FIXING CAPACITY
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JOURNAL OF SOIL SCIENCE,
1981, 32 (03)
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[2]
REMOVAL OF ORGANIC-MATTER FROM SOIL EXTRACTS BY BROMINE OXIDATION
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JOURNAL OF SOIL SCIENCE,
1974, 25 (02)
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[3]
DETERMINATION AND ISOTOPE-RATIO ANALYSIS OF DIFFERENT FORMS OF NITROGEN IN SOILS .5. FIXED AMMONIUM
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SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1966, 30 (05)
:587-+