... fertilization on growth of Douglas-fir: relative contribution of foliage quantity and efficiency,Can. J. For. Res. 13 (1983) 167–175.[10] Brix H., Ebell L.F., Effects of nitrogen fertilization on growth, ... species. Of the fewstudies on conifers, none have included direct quantification of Rubisco. Previously we reported relationships among addition of P fertiliser, growth, and photosynthesis of P. ... lasting role of Amax in the growth response. Concentrations of N, P, and K were maintainedwithin a relatively small range, and there was no correlationbetween Amax and concentrations of N, P,...