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Site-Effects Dominate the Plant Availability of Nutrients under Salix Species during the First Cutting Cycle

Koczorski, Piotr and Furtado, Bliss and Hrynkiewicz, Katarzyna and Breezmann, Michelle and Weih, Martin and Baum, Christel (2021). Site-Effects Dominate the Plant Availability of Nutrients under Salix Species during the First Cutting Cycle. Forests. 12 , 1226
[Research article]

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Abstract

Fast-growing willows (Salix spp.) provide alternative sources of renewable energy generation, but need an adequate nutrient availability in the soil for high biomass production. In general, species mixtures can be more nutrient-efficient than pure cultures, but this is scarcely known for Salix spp. Therefore, this study evaluates the nutrient availability and P mobilization under two willow species, Salix dasyclados var. 'Loden' and S. schwerinii x viminalis var. 'Tora', grown as pure and mixed cultures at non-fertilized former arable sites in Germany (Stagnic Cambisol) and Sweden (Vertic Cambisol). The plant availability of potassium (K), magnesium (Mg) and phosphorus (P) and soil phosphatase activities in the topsoil were measured in spring of the year of planting (initial) and under 4 years-old stocks (one year after the first 3-year cutting cycle). The initial plant availability of the nutrients significantly differed between the sites and the two sampling dates at both sites. The plant availability of K and Mg was optimal to high at both sites and sampling dates, but rather low for P (after 4 years <= 5 mg P 100 g(-1) soil). The plant-available P and K content in soil significantly decreased within the 4 years of willow growth at both sites. The acid and alkaline phosphatase activity in the soil of the German site (Rostock) was significantly lower after 4 years of willow growth, but differed not significantly between the two sampling dates at the Swedish site (Uppsala). Higher activity of acid phosphatase compared to alkaline phosphatase was recorded in the soils at both test sites based on the site-specific soil pH (<7). The slight decrease of plant availability of P after 4 years of Salix growth in pure culture differed not significantly between the different species. Mixed growth did not decrease the plant availability of P within this period, although no significant difference in the biomass production of pure and mixed growth was observed. This was valid at both sites, and therefore, seems independent of the site-specific differences in soil and climate conditions. The general validity of the assumptions should be tested also for other species mixtures and soil conditions in the future before site-adapted growth designs can be recommended in biomass production of Salix.

Authors/Creators:Koczorski, Piotr and Furtado, Bliss and Hrynkiewicz, Katarzyna and Breezmann, Michelle and Weih, Martin and Baum, Christel
Title:Site-Effects Dominate the Plant Availability of Nutrients under Salix Species during the First Cutting Cycle
Series Name/Journal:Forests
Year of publishing :2021
Volume:12
Article number:1226
Number of Pages:13
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:short rotation coppice, phosphatase activity, nutrient content, growth stages, biomass, willow, Salix
URN:NBN:urn:nbn:se:slu:epsilon-p-113885
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113885
Additional ID:
Type of IDID
DOI10.3390/f12091226
Web of Science (WoS)000700957800001
ID Code:25619
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Crop Production Ecology
Deposited By: SLUpub Connector
Deposited On:08 Oct 2021 12:25
Metadata Last Modified:08 Oct 2021 12:31

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