Figure 2From: Quantifying remobilization of pre-existing nitrogen from cuttings to new growth of woody plants using 15N at natural abundancePer cent of pre-existing nitrogen remobilized into new growth (A) and per cent contribution of carried-over pre-existing cutting nitrogen to total plant nitrogen (B) in Populus balsamifera L. grown with either nitrate or ammonium. Bars are means ± SE (N = 75).Back to article page