期刊
APPLIED SOIL ECOLOGY
卷 115, 期 -, 页码 53-59出版社
ELSEVIER
DOI: 10.1016/j.apsoil.2017.03.012
关键词
Arbuscular mycorrhizal fungi; 454 pyrosequencing; Diversity; Community composition; Plant performance
类别
资金
- Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning [215-2010-1679]
- SAPES project (Multifunctional Agriculture: Harnessing Biodiversity for Sustaining Agricultural Production and Ecosystem Services)
Understanding the effects of different agricultural practices on the mycorrhizal symbiosis is important for agricultural production and the sustainable use of soil. We investigated the composition and diversity of arbuscular mycorrhizal fungi (AMF) in soils from fields under different agricultural practices (conventional and organic cereal fields, leys and permanent pastures) in southern Sweden. The diversity of AMF was found to be greatest in permanent pastures, corroborating evidence that agricultural practices such as tillage impair AMF diversity. Neither geographical location nor soil type nor any of the major soil characteristics we measured impacted AMF diversity or community composition. AMF community composition was significantly affected by the different agricultural practices, particularly conventional management, which reduced AMF diversity. Of the cereal fields sampled, those under organic management held the greatest AMF diversity, and in a glasshouse experiment this greater diversity was positively related to barley phosphorus uptake and grain biomass production. Our results demonstrate the impact of different agricultural practices on AMF communities. In particular, we demonstrate the ability of organic farming to sustain greater AMF diversity relative to conventional farming, and the potential importance of this increased diversity for sustainable cereal production. (C) 2017 Elsevier B.V. All rights reserved.
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