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Coarse root nitrogen content per coarse root dry mass

Formal name:  coarse root nitrogen content per coarse root dry mass
Local identifier:  TOP405
Synonym Term:  coarse root N content per dry mass
Related Term:  coarse root N concentration
Related Term:  coarse root N content
Definition:  The ratio of the quantity (SEP:quantity) of nitrogen (CHEBI:nitrogen atom) in the coarse root (Def:coarse root) to the corresponding coarse root mass (PATO:mass) assessed after drying
Formal Unit:  mass unit / mass unit or amount unit / mass unit

Comment:  The quantity of nitrogen can be expressed either as a mass (with mass unit, e.g. gram) or as an amount (with amount unit, e.g. mol). The term concentration is polysemic and we suggest to not use it in this context.
Reference:  Eric Garnier, Jens Kattge, Stefan Klotz, Ingolf Kühn, Ulrike Stahl


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