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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

Jonsdottir, Rakel J. (author)
Norðurlandsskógar, Krókeyri, IS-600, Akureyri, Iceland
Sigurdsson, Bjarni D. (author)
Faculty of Environmental Sciences, Agricultural University of Iceland, Hvanneyri, IS-311, Borgarnes, Iceland
Lindström, Anders (author)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Högskolan Dalarna,Skog- och träteknik,School for Forest Management, Swedish University of Agricultural Sciences, Box 43, 739 21 Skinnskatteberg, Sweden,Skogsmästarskolan
 (creator_code:org_t)
 
Taylor & Francis, 2013
2013
English.
In: Scandinavian Journal of Forest Research. - : Taylor & Francis. - 0282-7581 .- 1651-1891. ; 28:7, s. 631-641
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The low availability of nitrogen (N) is believed to be one of the major limiting factors of forest regeneration inIceland and frequently under Boreal conditions. Lutz spruce (Picea x lutzii Littl.) seedlings were nutrient loadedusing 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 fertilizationincreased new needle mass by 122% and 152%, for the poor and more fertile site, respectively. The highest loadinglevel with field fertilization increased new needle mass equally, by 188% and 189%, for the poor and more fertilesite, 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 showedan additive response to field fertilization and nutrient loading; doing both always gave the best results in seedlingperformance. As the study only covers field establishment during the first year, the long-term effect of nutrientloading of Lutz spruce cannot be predicted. However, it was concluded that loading might provide an additionalinput for faster plantation establishment during the first growing season after planting.

Subject headings

LANTBRUKSVETENSKAPER  -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
AGRICULTURAL SCIENCES  -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
LANTBRUKSVETENSKAPER  -- Annan lantbruksvetenskap -- Förnyelsebar bioenergi (hsv//swe)
AGRICULTURAL SCIENCES  -- Other Agricultural Sciences -- Renewable Bioenergy Research (hsv//eng)
LANTBRUKSVETENSKAPER  -- Annan lantbruksvetenskap -- Övrig annan lantbruksvetenskap (hsv//swe)
AGRICULTURAL SCIENCES  -- Other Agricultural Sciences -- Other Agricultural Sciences not elsewhere specified (hsv//eng)

Keyword

field fertilization; Lutz spruce seedlings; nutrient loading; seedling establishment
Energy and Built Environments
Energi och samhällsbyggnad

Publication and Content Type

ref (subject category)
art (subject category)

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