Tag Archives: wood ash

468–477 D. Lazdiņa, I. Bebre, K. Dūmiņš, I. Skranda, A. Lazdins, J. Jansons and S. Celma
Wood ash – green energy production side product as fertilizer for vigorous forest plantations
Abstract |
Full text PDF (553 kB)

Wood ash – green energy production side product as fertilizer for vigorous forest plantations

D. Lazdiņa*, I. Bebre, K. Dūmiņš, I. Skranda, A. Lazdins, J. Jansons and S. Celma

Latvian State Forest Research Institute ‘Silava’, Riga str. 111, LV-2169 Salaspils, Latvia
*Correspondence: dagnija.lazdina@silava.lv

Abstract:

Notable amounts of wood ash containing plant macro and micronutrient elements in balanced proportions are produced in Latvia. If bioenergy production source product is plant material, and facilities are operating well, then ‘side product’ fermentation residues or wood ashes should not contain elements in toxic concentrations. Wood ash contains P and K which are lacking in acidic organic soils and could work as fertiliser as well as a long term liming agent, besides that, all micronutrient elements necessary for physiological processes are present in wood ash. Wood ash could also be used as ‘revitalization agents’ – fertilisers to improve the growth of plantation forests. The aim of this research is to find and describe the positive effect of wood ash fertilisers on Norway spruce (Picea abies) and other economically valuable tree species. Research results show positive wood ash application effect on tree growth and vitality within the first 4 years when used for recultivation and revitalization purposes. Recycling of wood ash (0.5–3 t ha- 1 before planting) for fertilisation of and Picea abies forest plantations are a sustainable and effective solution for the improvement of tree growth as well as an environmentally safe method of utilization of bioenergy production residues.

Key words:

, , , , , ,




1494-1504 O. Szabó, G. Kovács and B. Heil
Effects of nutrient supply and planting material quality on yield and survival rate of a short rotation coppice culture in Hungary
Abstract |
Full text PDF (300 kB)

Effects of nutrient supply and planting material quality on yield and survival rate of a short rotation coppice culture in Hungary

O. Szabó*, G. Kovács and B. Heil

Institute of Environmental and Earth Science, Faculty of Forestry, University of West–Hungary, Bajcsy–Zs. Street 4, H–9400 Sopron, Hungary
*Correspondence: szabo.orsolya@emk.nyme.hu, orsoy@freemail.hu

Abstract:

In May 2011, a short rotation woody energy plantation (SRC) was established near Dejtár village in Northern–Hungary. The goal of the experiment was comparative analyses of different fertilization treatments on three clones of Populus (AF2, Monviso, Pannonia) and one Salix cultivar (‘Dékány’). We used three fertilization treatments: (1) 5 t ha–1 of wood ash, (2) 40 t ha–1 of farmyard manure and (3) both 5 t ha–1 of wood ash and 40 t ha–1 of farmyard manure. The Monviso clone had the highest survival rate (92%), followed by Pannonia (80%) and AF2 (78%). Initially, the white willow ‘Dékány’ cultivar was also included in the experiment, but due to differing site preferences of this cultivar, it was not viable in the area. Based on the data of the first three growing seasons, it was demonstrated that the important nutrients had already been present in optimal amounts from the start of the experiment, and their contents were increased due to the treatments. At the end of the first growing season, the effect of the fertilization treatment could not be detected, but by the third year the results showed a significant positive effect. Already in the second, but mostly at the end of the third growing season, the wood ash + manure fertilizer treated plots showed significant increases in height growth and biomass yield.

Key words:

, , ,




198–210 S. Rancane, A. Karklins, D. Lazdina, P. Berzins, A. Bardule, A. Butlers and A. Lazdins
The evaluation of biomass yield and quality of Phalaris arundinacea and Festulolium fertilised with bio-energy waste products
Abstract |
Full text PDF (315 kB)

The evaluation of biomass yield and quality of Phalaris arundinacea and Festulolium fertilised with bio-energy waste products

S. Rancane¹*, A. Karklins², D. Lazdina³, P. Berzins¹, A. Bardule³, A. Butlers³ and A. Lazdins³

¹Latvia University of Agriculture, Institute of Agriculture, Lielā iela 2, LV-3001,
Jelgava, Latvia
²Latvia University of Agriculture, Faculty of Agriculture, Institute of Soil and Plant
Sciences, Lielā iela 2, LV-3001 Jelgava, Latvia
³Latvia State Forest Research Institute ‘Silava’, Rīgas iela 111, LV-2169 Salaspils,
Latvia
*Correspondence: sarmite.rancane@inbox.lv

Abstract:

 Tall growing perennial grasses such as Phalaris arundinacea and Festulolium can be used as an alternative source for bioenergy production in northern latitudes as they can be grown in less cultivated areas and can be potentially used as a dual purpose crop (bioenergy and forage). The aim of studies was to investigate the effectiveness of using bioenergy waste products – fermentation residues (digestate) and wood ash as fertilisers for perennial grasses. The field experiment was conducted in the central part of Latvia (56°42′ N and 25°08′ E) from 2013 to 2015. For all fertiliser treatments (wood ash, digestate once per season; digestate twice per season and mineral fertilisers) the same amount of plant nutrients (N, P, K) was applied annually: N (100), P2O5 (80), K2O (160); and the missing quantities of elements in ash and digestate were compensated by mineral fertilisers. Dry matter yield (DMY) in two harvest regimes (single cut and two cut) and chemical composition (ash content; total C and N) of grass biomass partitioning among tillers, leaves and panicles were estimated.
Biomass yield in the three years of use varied considerably depending on the fertiliser, harvest regime and species, ranging up to 10.0 Mg ha-1 for RCG and 7.73 Mg ha-1 for festulolium. All fertilisers provided a significant increase of DMY, however, better results for both species were obtained using wood ash and mineral fertilisers. The harvest regime and species affected directly the quality of biomass, single cut of RCG contained significantly less ash and more carbon. There were significant differences between sward fractions – culms in comparison with leaves contained less ash and nitrogen, and more carbon, what are desirable features for solid fuel.

Key words:

, , , ,




347-356 D. Lazdiņa, K. Liepiņš, A. Bārdule, J. Liepiņš and A. Bārdulis
Wood ash and wastewater sludge recycling success in fast- growing deciduous tree – birch and alder plantations
Abstract |
Full text PDF (321 kB)

Wood ash and wastewater sludge recycling success in fast- growing deciduous tree – birch and alder plantations

D. Lazdiņa*, K. Liepiņš, A. Bārdule, J. Liepiņš and A. Bārdulis

¹Latvia State Forest Research Institute Silava, Riga Street 111 2169, Salaspils,Latvia; *Correspondence: dagnija.lazdina@silava.lv

Abstract:

Due to the increasing of wood as energy renewable resource in power and heat plantsthe amount of wood ash as waste will increase. Wood ash contains plant macronutrientelements P, K and different elements as micronutrients, only organic and nitrogen are missing.Wastewater sludge from small municipalities is usually clean, first-class material and contains alot of nitrogen and phosphorus. Wood ash can be a good fertiliser and a liming material not onlyfor acid organic soils, but also for mineral soils, but with a less significant effect on the treegrowth in first seasons than a nitrogen rich fertiliser wastewater sludge.The effects that wood ash and wastewater sludge have on the increment and survival of treeswere tested during the years 2011 and 2012 on loam and loamy soils at plantations of blackalder, birch and grey alder, and they were compared with the results collected in the previousresearch started in 2005. It was observed that wood ash in the first two seasons did notsignificantly increase the growth of silver birch, as wastewater sludge did, but it had a positiveeffect on the annual increment of grey alder. Fertilisation of the whole field decreased thesurvival of trees because of weed competition and different injuries.The aim of the study was to evaluate the growth of fast-growing deciduous trees seedlings asshort rotation crop under fertilisation of wood ash, and wastewater sludge on former agriculturalland.

Key words:

, , , , ,