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Fungi in Danish soils under organic and conventional farming

Elmholt, S. and Labouriau, R. (2005) Fungi in Danish soils under organic and conventional farming. Agriculture, Ecosystems and Environment, 107, pp. 65-73.

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A multi-soil study was conducted in Denmark including 29 sites, 8 classified as ‘Organic’, 11 as ‘Conventional with manure and synthetic fertilisers’ and 10 as ‘Conventional with synthetic fertilisers’. The variability of fungal abundance within the three farming systems and the long-term effects of different farming systems on fungal propagules in soil were evaluated.
Fungal abundance showed large variations within all three farming systems and this variability reduced the possibility to obtain general conclusions on fungal composition in soils under different farming systems. This was illustrated by the results on total propagule numbers of filamentous fungi and yeasts. Penicillium spp. and Gliocladium roseum were more abundant under organic than conventional farming, while Trichoderma spp. were most abundant in conventionally farmed soils with synthetic fertilisers. These results were not altered after adjusting for possible differences in basic soil properties like total-C and N, extractable P, CEC, base saturation and soil density. The paper discusses whether the differences in fungal abundance are characteristics of a farming system itself or associated with certain management factors being more prevalent in one farming system than the other.

EPrint Type:Journal paper
Keywords:soil fungi, Penicillium, Gliocladium, Trichoderma, antagonism
Subjects: Soil > Soil quality > Soil biology
Environmental aspects > Biodiversity and ecosystem services
Research affiliation: Denmark > DARCOF II (2000-2005) > I.12 (PREMYTOX) Preventing mycotoxin problems
Denmark > DARCOF II (2000-2005) > I. 7 (ROMAPAC) Soil quality in organic farming
Deposited By: Elmholt, Susanne
ID Code:3328
Deposited On:30 Sep 2004
Last Modified:27 Apr 2013 21:41
Document Language:English
Refereed:Peer-reviewed and accepted

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