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Restmaterialer fra bio-energiproduktion - kan de tilbageføres til marken?

Johansen, Anders; Hansen, Christian M. and Carter, Mette S. (2010) Restmaterialer fra bio-energiproduktion - kan de tilbageføres til marken? ICROFSnyt, March 2010, pp. 12-13.

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PDF - Published Version - Danish/Dansk

Document available online at: http://www.icrofs.dk/Sider/Publikationer/nyhedsbreve.html


Efluents from biogas production may be recycled to soil as plant nutrition. However, the proportion of plant-available nitrogen is high and may cause loss due to leaching or gaseous emissions. Hence, such waste stream materials must be applied with care to ensure maximum plant uptake to minimize loss. Spread of weed seeds via application of biogas effluents is only a problem when the digestion is performed at mesophilic conditions and when the seeds are staying less than a week in the plant. At thermophilic conditions, seeds from a range of weed plant were unable to germinate efter just a few days.

EPrint Type:Newspaper or magazine article
Keywords:bioenergy, biogas, effluents, recycling, weed seed, germination
Subjects: Soil > Nutrient turnover
Farming Systems > Farm nutrient management
Crop husbandry > Weed management
Soil > Soil quality
Animal husbandry > Health and welfare
Crop husbandry > Composting and manuring
Environmental aspects > Air and water emissions
Research affiliation: Denmark > DARCOF III (2005-2010) > BIOCONCENS - Biomass and bio-energy production in organic agriculture
Deposited By: Johansen, Senior Scientist, PhD Anders
ID Code:16902
Deposited On:26 Mar 2010 07:29
Last Modified:12 Apr 2010 07:43
Document Language:Danish/Dansk

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