
doi: 10.1007/bf01048606
Nitrogen is absorbed by trees in quantities larger than any of the mineral nutrients. It can be taken up by trees as NH4 and as NO3, but the relative ease with which they are absorbed does not necessarily reflect the degree of preference shown by tree species for either of the N forms.
NH4:NO3 uptake ratio, 15N isotope, soil acidification, Larix kaempferi, tree nutrition, cation-anion uptake balance
NH4:NO3 uptake ratio, 15N isotope, soil acidification, Larix kaempferi, tree nutrition, cation-anion uptake balance
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