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Utilization of Animal Meal for Growing of Willow Dedicated for Energy

Nogalska A., Klasa A., Skwierawska M., Pilejczyk D.

Journal of Ecological Engineering

2016

Vol. 17, nr 4

248--254

The aim of the study was to evaluate the effects of increased rates of meat and bone meal (MBM) to the soil on biomass yield, nitrogen (N) and phosphorus (P) content, and their accumulation in above ground biomass Salix viminalis, as well as the content of mineral N and available P forms in the soil. A two-year pot experiment was conducted at Warmia and Mazury University in Olsztyn (north-eastern Poland). Average biomass yield from two seasons of the studies was three higher from MBM treatments comparing to unfertilized control. Higher rates of MBM particularly in the second year showed higher yielding potential compared with mineral fertilizers. Willow biomass harvested from MBM treatments generally showed lower content of studied nutrients than willow from control treatment. It was found that in relation to the control accumulation of N in willow above ground biomass was significantly lower for 0.5% MBM treatment and significantly higher for the treatment with the highest rate (2.0%). The higher accumulation of P was found in the second year after MBM application, except treatment with the lowest MBM rate. Correlation coefficients values indicated that there is a relation between MBM rate and content of mineral N and available P in soil.

Influence of composted sewage sludge on the wood yield of willow short rotation coppice. An Estonian case study

Holm B., Heinsoo K.

Environment Protection Engineering

2013

Vol. 39, nr 1

17--32

The study assessed the effect of composted municipal sewage sludge on the wood yield of an experimental willow short rotation coppice (SRC) during the second harvest cycle. The mean values of BOD7, total N and total P met the legislative limits set to prevent groundwater pollution at the soil depth of 40 cm. We demonstrated that more productive plants of the first harvest cycle could lose that trait during the next. The second harvest cycle was more productive in terms of wood yield than the first for plants of both treatments. Sludge treated willows had significantly higher wood yield.

Skład chemiczny oraz wartość opałowa drewna wierzby krzewiastej, pozyskanego z gruntów ornych

Stolarski M., Wróblewska H., Cichy W., Szczukowski S., Tworkowski J.

Drewno : prace naukowe, doniesienia, komunikaty

2005

vol. 48, nr 174

5-16

Na podstawie właściwości chemicznych i fizycznych pędów jednorocznych, dwuletnich i czteroletnich w korze oraz pędów jednorocznych okorowanych i samej kory oceniono przydatność drewna Salix viminalis do celów energetycznych i przemysłowych. Skład chemiczny, zawartość mikropierwiastków, popiół, ciepło spalania i wartość opalowa wykazały, że niekorowane drewno wierzby krzewiastej może być stosowane w wytwarzaniu energii, celulozy i płyt.

The object of the work was to assess the usability of willow coppice (Salix viminalis) wood from a fidel culture on a brown soil of IIIa class of a wheat complex of good quality, for energy and industrial purposes on the basis of the chosen chemical-physical properties of this wood. Analytic samples were taken from wood of one-, two- and four-year-old shoots in bark and from debarked one-year old shoots and bark obtained from them. Basic chemical composition of willow wood, elementary composition, macro elements content, ash, heat of combustion and calorific value were determined. It can be stated that non-debarked basket willow (Salix viminalis) wood cultivated on arable lands is suitable to be used for energy and industrial purposes (cellulose, panels).