Measuring Harvestable Biomass in Short-Rotation Willow Bioenergy Plantations Using Light Attenuation

Hangs, R.D.; Stevenson, F. Craig; Schoenau, Jeff J.; Rees, K. C. J. Van

doi:10.1007/s12155-012-9238-7

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…Willow plants produced on average about 3 shoots from one cut (Table 5). In the research by Hangs et al [41], where the willow plants were cut down after the first year after planting, the number of shoots per plant was 2-3 times higher than that in our own experiment. There were no significant differences between study years and year-by-system cultivation interactions regarding planting density (Table 5).…”

Section: Plant Mortality Assessmentscontrasting

confidence: 75%

Effect of White Clover (Trifolium repens L.) Undersowing Cultivation and Nitrogen Fertilization on Weed Infestation, Biomass Yield and Its Component, Content and Uptake of Macroelements of Willow (Salix viminalis L.)

Helios

2021

Agronomy

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Fertilization of willow with nitrogen is an important issue with economic and environmental implications. The study was aimed at determining the effect of nitrogen fertilization and white clover on weed infestation, morphology, biomass and chemical composition of willow. A field experiment was established at Wroclaw University of Environmental and Life Sciences (Poland) during the years 2013–2017 with the use of a randomized complete block design (RCBD). The results showed that the number and dry mass of weeds per m2, the number of willow shoots and the fresh weight yield of willow were smaller where the clover was sown. The plants were found to be higher after applying nitrogen fertilization. The dry mass yield and shoot diameter did not depend on the cultivation method. Nitrogen fertilization increased the ash content. Undersowing willow with white clover, higher nitrogen content was found. Nitrogen fertilization increased the content of ash, and in undersowing cultivation, the willow stems had higher nitrogen content than in monoculture. On average, the phloem had 5.6 times higher crude ash content and 4.6 times higher nitrogen content than wood. On the basis of the conducted research, it can be concluded that in the first years after planting, the undersowing growing of willow with white clover can be an alternative to plantations fertilized and non-fertilized with nitrogen.

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Section: Plant Mortality Assessmentscontrasting

confidence: 75%

Effect of White Clover (Trifolium repens L.) Undersowing Cultivation and Nitrogen Fertilization on Weed Infestation, Biomass Yield and Its Component, Content and Uptake of Macroelements of Willow (Salix viminalis L.)

Helios

2021

Agronomy

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“…Willow plants produced on average about 3 shoots from one cut ( Table 2). In the research by Hangs et al [36], where the willow plants were cut down after the rst year after planting, the number of shoots per plant was 2-3 times higher than in that in our own experiment. There was no observed year-on-year in uence on the number of shoots plant -1 and shoots m -2 ( Table 2).…”

Section: Plant Mortality Assessmentscontrasting

confidence: 74%

The effect of white clover (Trifolium repens L.) and nitrogen fertilisation on biomass production, morphology, chemical composition and weed infestation of willow (Salix viminalis L.)

Helios

2021

Preprint

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The study was aimed at determining the effect of nitrogen fertilization and white clover on biomass yield weed infestation, morphology, and chemical composition of willow. A field experiment was established in 2013 at Wroclaw University of Environmental and Life sciences (Poland). The results showed that the number and dry mass of weeds per 1m 2 , the number of willow shoots and the fresh weight yield of willow were smaller where clover was sown. The plants were found to be higher after applying nitrogen fertilization. The dry mass yield and shoot diameter did not depend on the cultivation method. Nitrogen fertilization increased the content of ash, and in undersowing cultivation the willow stems had higher nitrogen content than in monoculture. On average, the phloem had 5.6 times higher crude ash content and 4.6 times higher nitrogen content than wood. The ratio of wood dry mass to phloem dry mass in undersowing cultivation and nitrogen fertilization was 3.97:1, and 3.91:1 for the control. On the basis of the conducted research, it can be concluded that in the first years after planting the undersowing growing of willow with white clover can be an alternative to plantations fertilized and non-fertilized with nitrogen.

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“…At each of the four sites, a single pedon was excavated and a full soil taxonomic 24 assignment given (according to the Canadian System of Soil Classification) to classify the soils. The 25 following replicated variety trial information was originally reported in Hangs et al [43]. In the spring 26 of 2007, six willow varieties, developed by the SUNY-ESF breeding program, were planted at each 27 location in a randomized complete block design (n=4) adapted from the protocols of Abrahamson et al 28 [1].…”

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confidence: 99%

First Rotation Biomass Production and Nutrient Cycling within Short-Rotation Coppice Willow Plantations in Saskatchewan, Canada

et al. 2014

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Abstract:Although numerous studies have quantified different social, economic, energetic, and environmental benefits associated with short-rotation coppice (SRC) willow plantations, comprehensive assessments of nutrient cycling are rare. The objective of this study was to examine the biomass production and attendant biogeochemical cycling of nitrogen (N), phosphorus (P), potassium (K), sulphur (S), calcium (Ca), and magnesium (Mg) during the initial four-year rotation of six willow varieties grown at four locations along a 500 km north-south pedoclimatic gradient within Saskatchewan, Canada. Nutrient budgets consisted of quantifying various nutrient inputs (e.g., atmospheric deposition and soil mineral weathering), outputs (e.g., fine and coarse root biomass, leaf biomass, harvested biomass, leaching, and denitrification), and transfers (e.g., soil organic matter mineralization, canopy exchange, leaf litter decomposition, and fine root turnover) associated with the plant available soil nutrient pool. Total above-and below-ground production during the rotation was approximately 40 Mg ha-1, with calculated soil nutrient budget deficits (i.e., nutrient outputs > inputs + transfers) of 17, 39, 112, 271, and 74 kg ha-1 for N, P, K, Ca, and Mg, respectively, averaged across the varieties and sites, but a soil S surplus of 60 kg ha-1. While soil nutrient budget deficits varied among sites, there were no significant differences (P >0.05) among willow varieties. Despite the relatively low nutrient-demanding nature of willow and negligible leaching or denitrification losses, nutrient export in harvested biomass over multiple rotations will require soil nutrient amendments to maintain SRC willow productivity, particularly N and P, albeit a fraction of the amount required for annual agronomic crops. Powered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation

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Measuring Harvestable Biomass in Short-Rotation Willow Bioenergy Plantations Using Light Attenuation

Cited by 4 publications

References 24 publications

Effect of White Clover (Trifolium repens L.) Undersowing Cultivation and Nitrogen Fertilization on Weed Infestation, Biomass Yield and Its Component, Content and Uptake of Macroelements of Willow (Salix viminalis L.)

Effect of White Clover (Trifolium repens L.) Undersowing Cultivation and Nitrogen Fertilization on Weed Infestation, Biomass Yield and Its Component, Content and Uptake of Macroelements of Willow (Salix viminalis L.)

The effect of white clover (Trifolium repens L.) and nitrogen fertilisation on biomass production, morphology, chemical composition and weed infestation of willow (Salix viminalis L.)

First Rotation Biomass Production and Nutrient Cycling within Short-Rotation Coppice Willow Plantations in Saskatchewan, Canada

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Measuring Harvestable Biomass in Short-Rotation Willow Bioenergy Plantations Using Light Attenuation

Cited by 4 publications

References 24 publications

Effect of White Clover (Trifolium repens L.) Undersowing Cultivation and Nitrogen Fertilization on Weed Infestation, Biomass Yield and Its Component, Content and Uptake of Macroelements of Willow (Salix viminalis L.)

Effect of White Clover (Trifolium repens L.) Undersowing Cultivation and Nitrogen Fertilization on Weed Infestation, Biomass Yield and Its Component, Content and Uptake of Macroelements of Willow (Salix viminalis L.)

The effect of white clover (Trifolium repens L.) and nitrogen fertilisation on biomass production, morphology, chemical composition and weed infestation&nbsp;of willow (Salix viminalis L.)

First Rotation Biomass Production and Nutrient Cycling within Short-Rotation Coppice Willow Plantations in Saskatchewan, Canada

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The effect of white clover (Trifolium repens L.) and nitrogen fertilisation on biomass production, morphology, chemical composition and weed infestation of willow (Salix viminalis L.)