Silva Fennica (Jan 1982)

Effect of nitrogen fertilization on photosynthesis and growth in young Scots pines. Preliminary results

  • Kellomäki, Seppo,
  • Puttonen, Pasi,
  • Tamminen, Heikki,
  • Westman, Carl

DOI
https://doi.org/10.14214/sf.a15084
Journal volume & issue
Vol. 16, no. 4

Abstract

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Application of nitrogen at levels of 200, 400 and 600 kg ha resulted in increases of 35, 18 and 12% in the photosynthetic rate in young Scots pine ( L.). The number of buds, degree of branching, and needle size were positively related to the amount of nitrogen applied. A 10–40% increase in the average needle area was found. A positive correlation was found between total photosynthesis and stem growth.-1Pinus sylvestris