Establishment and Early Growth of Willow at Different Levels of Weed Competition and Nitrogen Fertilization

Stina Edelfeldt*, Anneli Lundkvist, Johannes Forkman, Theo Verwijst

*Kontaktforfatter for dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

To evaluate the effects of weed competition and nitrogen fertilization on the early growth performance of willow, cuttings of the clone Tora (Salix schwerinii x S. viminalis) were planted in buckets together with model weeds (spring barley or white mustard) sown 15, 26, and 30 days after willow planting. The buckets were fertilized with 30 or 90 kg N ha−1. Willow with weeds sown after 15 days produced less biomass and smaller leaf area and had a lower maximum shoot height compared to willow planted without weeds and willow with weeds sown after 26 or 30 days. Fertilization with 90 kg N ha−1 gave higher willow biomass production in willow with weeds sown after 26 or 30 days. Type of model weed had no effect on willow performance. Weed biomass and maximum shoot height were higher in weeds planted without willows compared to the willow-weed mixtures. A high nitrogen level gave more weed biomass when planted without willows and in the willow-weed mixture with weeds sown after 15 days. We conclude that for the given high density of willow, competition from weeds emerging soon after willow planting had strong effect on early production. Furthermore, if there is a risk of weed infestation, fertilization should be delayed.

OriginalsprogEngelsk
TidsskriftBioenergy Research
Vol/bind9
Udgave nummer3
Sider (fra-til)763-772
Antal sider10
ISSN1939-1234
DOI
StatusUdgivet - 2016
Udgivet eksterntJa

Fingeraftryk

crop-weed competition
Biomass
weeds
Nitrogen
nitrogen
buckets
biomass
planting
Sinapis alba subsp. alba
Salix viminalis
shoots
spring barley

Citer dette

Edelfeldt, Stina ; Lundkvist, Anneli ; Forkman, Johannes ; Verwijst, Theo. / Establishment and Early Growth of Willow at Different Levels of Weed Competition and Nitrogen Fertilization. I: Bioenergy Research. 2016 ; Bind 9, Nr. 3. s. 763-772.
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abstract = "To evaluate the effects of weed competition and nitrogen fertilization on the early growth performance of willow, cuttings of the clone Tora (Salix schwerinii x S. viminalis) were planted in buckets together with model weeds (spring barley or white mustard) sown 15, 26, and 30{\^A} days after willow planting. The buckets were fertilized with 30 or 90{\^A} kg N{\^A} ha−1. Willow with weeds sown after 15{\^A} days produced less biomass and smaller leaf area and had a lower maximum shoot height compared to willow planted without weeds and willow with weeds sown after 26 or 30{\^A} days. Fertilization with 90{\^A} kg N{\^A} ha−1 gave higher willow biomass production in willow with weeds sown after 26 or 30{\^A} days. Type of model weed had no effect on willow performance. Weed biomass and maximum shoot height were higher in weeds planted without willows compared to the willow-weed mixtures. A high nitrogen level gave more weed biomass when planted without willows and in the willow-weed mixture with weeds sown after 15{\^A} days. We conclude that for the given high density of willow, competition from weeds emerging soon after willow planting had strong effect on early production. Furthermore, if there is a risk of weed infestation, fertilization should be delayed.",
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Establishment and Early Growth of Willow at Different Levels of Weed Competition and Nitrogen Fertilization. / Edelfeldt, Stina; Lundkvist, Anneli; Forkman, Johannes; Verwijst, Theo.

I: Bioenergy Research, Bind 9, Nr. 3, 2016, s. 763-772.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Establishment and Early Growth of Willow at Different Levels of Weed Competition and Nitrogen Fertilization

AU - Edelfeldt, Stina

AU - Lundkvist, Anneli

AU - Forkman, Johannes

AU - Verwijst, Theo

PY - 2016

Y1 - 2016

N2 - To evaluate the effects of weed competition and nitrogen fertilization on the early growth performance of willow, cuttings of the clone Tora (Salix schwerinii x S. viminalis) were planted in buckets together with model weeds (spring barley or white mustard) sown 15, 26, and 30 days after willow planting. The buckets were fertilized with 30 or 90 kg N ha−1. Willow with weeds sown after 15 days produced less biomass and smaller leaf area and had a lower maximum shoot height compared to willow planted without weeds and willow with weeds sown after 26 or 30 days. Fertilization with 90 kg N ha−1 gave higher willow biomass production in willow with weeds sown after 26 or 30 days. Type of model weed had no effect on willow performance. Weed biomass and maximum shoot height were higher in weeds planted without willows compared to the willow-weed mixtures. A high nitrogen level gave more weed biomass when planted without willows and in the willow-weed mixture with weeds sown after 15 days. We conclude that for the given high density of willow, competition from weeds emerging soon after willow planting had strong effect on early production. Furthermore, if there is a risk of weed infestation, fertilization should be delayed.

AB - To evaluate the effects of weed competition and nitrogen fertilization on the early growth performance of willow, cuttings of the clone Tora (Salix schwerinii x S. viminalis) were planted in buckets together with model weeds (spring barley or white mustard) sown 15, 26, and 30 days after willow planting. The buckets were fertilized with 30 or 90 kg N ha−1. Willow with weeds sown after 15 days produced less biomass and smaller leaf area and had a lower maximum shoot height compared to willow planted without weeds and willow with weeds sown after 26 or 30 days. Fertilization with 90 kg N ha−1 gave higher willow biomass production in willow with weeds sown after 26 or 30 days. Type of model weed had no effect on willow performance. Weed biomass and maximum shoot height were higher in weeds planted without willows compared to the willow-weed mixtures. A high nitrogen level gave more weed biomass when planted without willows and in the willow-weed mixture with weeds sown after 15 days. We conclude that for the given high density of willow, competition from weeds emerging soon after willow planting had strong effect on early production. Furthermore, if there is a risk of weed infestation, fertilization should be delayed.

KW - Canopy cover

KW - Cuttings

KW - Leaf area

KW - Salix

KW - Short rotation coppice

KW - Weeding

U2 - 10.1007/s12155-016-9723-5

DO - 10.1007/s12155-016-9723-5

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EP - 772

JO - Bioenergy Research

JF - Bioenergy Research

SN - 1939-1234

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