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Nitrogen allocation of Plantago lanceolata as a function of the inverse of nitrogen concentration. The line fits to the function y = −0·005x + 0·9026 [Pearson r = 0·990 significant at 0·01 level (two-tailed)]. Linearity was tested by residual analysis and showed no reason to deviate from linearity. Values of Nl/N and B/N are based on fig. 4 of Freysen and Veen (1989).
