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Tytuł:
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Tillage intensity and pasture in rotation effectively shape soil microbial communities at a landscape scale.
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Autorzy:
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Le Guillou C; INRA, UMR1347 Agroécologie, Dijon, France.
Chemidlin Prévost-Bouré N; AgroSup Dijon, UMR1347 Agroécologie, Dijon, France.
Karimi B; INRA, UMR1347 Agroécologie, Dijon, France.
Akkal-Corfini N; INRA, UMR1069 Sol Agro et hydrosystème Spatialisation, Rennes, France.
Dequiedt S; INRA, UMR1347 Agroécologie, Dijon, France.; INRA, UMR1347 Agroécologie, Plateforme Genosol, Dijon, France.
Nowak V; INRA, UMR1347 Agroécologie, Dijon, France.
Terrat S; INRA, UMR1347 Agroécologie, Dijon, France.; Université de Bourgogne, UMR1347 Agroécologie, Dijon, France.
Menasseri-Aubry S; INRA, UMR1069 Sol Agro et hydrosystème Spatialisation, Rennes, France.; Agrocampus Ouest, UMR1069 Sol Agro et hydrosystème Spatialisation, Rennes, France.; Université Européenne de Bretagne, Bretagne, France.
Viaud V; INRA, UMR1069 Sol Agro et hydrosystème Spatialisation, Rennes, France.
Maron PA; INRA, UMR1347 Agroécologie, Dijon, France.
Ranjard L; INRA, UMR1347 Agroécologie, Dijon, France.
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Źródło:
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MicrobiologyOpen [Microbiologyopen] 2019 Apr; Vol. 8 (4), pp. e00676. Date of Electronic Publication: 2018 Jun 13.
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Typ publikacji:
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Evaluation Study; Journal Article; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Original Publication: Oxford : Wiley-Blackwell
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MeSH Terms:
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Soil Microbiology*
Agriculture/*methods
Bacteria/*isolation & purification
Fungi/*isolation & purification
Bacteria/classification ; Bacteria/genetics ; Biodiversity ; Biomass ; Crops, Agricultural/growth & development ; DNA, Bacterial/genetics ; Europe ; Fertilizers/analysis ; Fungi/classification ; Fungi/genetics ; Soil/chemistry
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References:
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Contributed Indexing:
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Keywords: agricultural practices; bacteria; farmers; fungi; sustainable landuse
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Substance Nomenclature:
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0 (DNA, Bacterial)
0 (Fertilizers)
0 (Soil)
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Entry Date(s):
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Date Created: 20180614 Date Completed: 20190626 Latest Revision: 20210109
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Update Code:
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20240105
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PubMed Central ID:
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PMC6460278
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DOI:
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10.1002/mbo3.676
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PMID:
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29897676
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Soil microorganisms are essential to agroecosystem functioning and services. Yet, we still lack information on which farming practices can effectively shape the soil microbial communities. The aim of this study was to identify the farming practices, which are most effective at positively or negatively modifying bacterial and fungal diversity while considering the soil environmental variation at a landscape scale. A long-term research study catchment (12 km 2 ) representative of intensive mixed farming (livestock and crop) in Western Europe was investigated using a regular grid for soil sampling (n = 186). Farming systems on this landscape scale were described in terms of crop rotation, use of fertilizer, soil tillage, pesticides treatments, and liming. Molecular microbial biomass was estimated by soil DNA recovery. Bacterial and fungal communities were analyzed by 16S and 18S rRNA gene pyrosequencing. Microbial biomass was significantly stimulated by the presence of pasture during the crop rotation since temporary and permanent pastures, as compared to annual crops, increased the soil microbial biomass by +23% and +93% respectively. While soil properties (mainly pH) explained much of the variation in bacterial diversity, soil tillage seemed to be the most influential among the farming practices. A 2.4% increase in bacterial richness was observed along our gradient of soil tillage intensity. In contrast, farming practices were the predominant drivers of fungal diversity, which was mainly determined by the presence of pastures during the crop rotation. Compared to annual crops, temporary and permanent pastures increased soil fungal richness by +10% and +14.5%, respectively. Altogether, our landscape-scale investigation allows the identification of farming practices that can effectively shape the soil microbial abundance and diversity, with the goal to improve agricultural soil management and soil ecological integrity.
(© 2018 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd.)
