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Effects of Early, Small-Scale Nitrogen Addition on Germination and Early Growth of Scots Pine (Pinus sylvestris) Seedlings and on the Recruitment of the Root-Associated Fungal Community

Castro, David and Schneider, Andreas N. and Holmlund, Mattias and Näsholm, Torgny and Street, Nathaniel R. and Hurry, Vaughan (2021). Effects of Early, Small-Scale Nitrogen Addition on Germination and Early Growth of Scots Pine (Pinus sylvestris) Seedlings and on the Recruitment of the Root-Associated Fungal Community. Forests. 12 , 1589
[Research article]

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Abstract

Scots pine (Pinus sylvestris L.) is one of the most economically important species to the Swedish forest industry, and cost-efficient planting methods are needed to ensure successful reestablishment after harvesting forest stands. While the majority of clear-cuts are replanted with pre-grown seedlings, direct seeding can be a viable option on poorer sites. Organic fertilizer has been shown to improve planted seedling establishment, but the effect on direct seeding is less well known. Therefore, at a scarified (disc trencher harrowed) clear-cut site in northern Sweden, we evaluated the effect of early, small-scale nitrogen addition on establishment and early recruitment of fungi from the disturbed soil community by site-planted Scots pine seeds. Individual seeds were planted using a moisture retaining germination matrix containing 10 mg nitrogen in the form of either arginine phosphate or ammonium nitrate. After one growing season, we collected seedlings and assessed the fungal community of seedling roots and the surrounding soil. Our results demonstrate that early, small-scale N addition increases seedling survival and needle carbon content, that there is rapid recruitment of ectomycorrhizal fungi to the roots and rhizosphere of the young seedlings and that this rapid recruitment was modified but not prevented by N addition.

Authors/Creators:Castro, David and Schneider, Andreas N. and Holmlund, Mattias and Näsholm, Torgny and Street, Nathaniel R. and Hurry, Vaughan
Title:Effects of Early, Small-Scale Nitrogen Addition on Germination and Early Growth of Scots Pine (Pinus sylvestris) Seedlings and on the Recruitment of the Root-Associated Fungal Community
Series Name/Journal:Forests
Year of publishing :2021
Volume:12
Article number:1589
Number of Pages:17
Publisher:MDPI
ISSN:1999-4907
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:boreal forest, clear-cut, fungal community composition, ectomycorrhiza, Scots pine, nitrogen addition, mycobiome
URN:NBN:urn:nbn:se:slu:epsilon-p-115007
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115007
Additional ID:
Type of IDID
DOI10.3390/f12111589
Web of Science (WoS)000725843200001
ID Code:26408
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Genetics and Plant Physiology
(S) > Dept. of Forest Ecology and Management
Deposited By: SLUpub Connector
Deposited On:23 Dec 2021 10:25
Metadata Last Modified:23 Dec 2021 10:31

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