Effects of nutrient loading and fertilization at planting on growth and nutrient status of Lutz spruce (Picea x lutzii) seedlings during the first growing season in Iceland

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

The low availability of nitrogen (N) is believed to be one of the major limiting factors of forest regeneration in Iceland and frequently under Boreal conditions. Lutz spruce (Picea x lutzii Littl.) seedlings were nutrient loaded using four fertilization regimes in the end of nursery rotation in autumn 2008 and planted in the following spring, with or without a single dose of fertilizer, on two treeless sites in N-Iceland with contrasting soil fertility. Measurements were made after one growing season. The highest loading level without additional field fertilization increased new needle mass by 122% and 152%, for the poor and more fertile site, respectively. The highest loading level with field fertilization increased new needle mass equally, by 188% and 189%, for the poor and more fertile site, respectively. Retranslocation of N, from old needles to current needles, increased with more loading. However, it was clear that nutrient loading could not replace field fertilization, as the seedlings generally showed an additive response to field fertilization and nutrient loading; doing both always gave the best results in seedling performance. As the study only covers field establishment during the first year, the long-term effect of nutrient loading of Lutz spruce cannot be predicted. However, it was concluded that loading might provide an additional input for faster plantation establishment during the first growing season after planting.

Original languageEnglish
Pages (from-to)631-641
Number of pages11
JournalScandinavian Journal of Forest Research
Volume28
Issue number7
DOIs
Publication statusPublished - Oct 2013

Bibliographical note

Funding Information:
This study was partly carried out as a 60 ECTS master thesis for the Department of Southern Swedish Forest Research Centre at the Swedish University of Agricultural Sciences under supervision of professor Urban Nilsson. Financial support was received from the Regional Afforestation Programme Norðurlandsskógar, the nursery Sólskógar, the Swedish University of Agricultural Sciences SLU, Nordgen, CAR-ES (Centre of Advanced Research on Environmental Services), which is a SNS funded Nordic research network within the field of forest research and the Faculty of Environmental Sciences, Agricultural University of Iceland. Their contributions are greatly appreciated.

Other keywords

  • field fertilization
  • Lutz spruce seedlings
  • nutrient loading
  • seedling establishment

Fingerprint

Dive into the research topics of 'Effects of nutrient loading and fertilization at planting on growth and nutrient status of Lutz spruce (Picea x lutzii) seedlings during the first growing season in Iceland'. Together they form a unique fingerprint.

Cite this