The possibilities to use ashes of biopower plants for forest fertiliser

Samuli Rinne, Tuulikki Lindh, Saara Isännäinen, Eliisa Järvelä, Kirsi Korpijärvi, Teuvo Paappanen, Hannu Mursunen, Tytti Laitinen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


    RecAsh project (Regular recycling of wood ash to prevent waste production) is coordinated from Sweden and it belongs to EU-Life Environment program. The aim of the project is to promote ash recycling as a forest fertiliser in Sweden and Finland.This is done mainly by different demonstrations on ash classification, granulation, road haulage, forest spreading and system analysis. Wood as is a nutrient-rich and well-granulable fertiliser for peatland forests, which have a lack of mineral nutrients. Peat ash can also be suitable for forest fertilising by adding potassium into it, e.g. in the form of biotite. Some wood ash should be mixed with peat ash to ensure the granulability. For mineral soils it is necessary to add nitrogen to fertiliser if the growth is to be increased. This can be done e.g. by mixing biosludge with ash. In Finland the ash fertilisation has concentrated so far to the forests owned by forest companies. To limit the transportation distances and to have enough spreading areas in general, ash fertilisation must also be promoted to private forest owners. This requires the chemical quality control of ashes and also e.g. granulation to ensure dust-free operation and to avoid alkaline shock in the soil.
    Original languageEnglish
    Title of host publicationBioenergy in Wood Industry 2005 – Book of Proceedings
    PublisherSuomen bioenergiayhdistys ry
    ISBN (Print)952-5135-31-4
    Publication statusPublished - 2005
    MoE publication typeA4 Article in a conference publication
    EventInternational Bioenergy in Wood Industry Conference and Exhibition, BioEnergy 2005 - Jyväskylä, Finland
    Duration: 12 Sept 200515 Sept 2005

    Publication series

    SeriesFINBIO publication


    ConferenceInternational Bioenergy in Wood Industry Conference and Exhibition, BioEnergy 2005


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