Microbial communities are influenced by different soil management practices such as minimum tillage and plowing in historical field trials.


  • Durenne, B. , Delporte, F. , Roisin, C. , Huyghebaert, B. , Dequiedt, S. , Maron, P.A. , Tripied, J. & Ranjard, L. (2020). Microbial communities are influenced by different soil management practices such as minimum tillage and plowing in historical field trials. Poster in: 25th National Symposium for Applied Biological Sciences (NSABS), Gembloux Agro-Bio Tech, 31 janvier 2020.
Type Poster
Year 2020
Title Microbial communities are influenced by different soil management practices such as minimum tillage and plowing in historical field trials.
Event name 25th National Symposium for Applied Biological Sciences (NSABS)
Event location Gembloux Agro-Bio Tech
Event date 31 janvier 2020
Abstract Soil is probably one of the most complex environments on the Earth including a huge microbial diversity. Microorganisms are largely involved in agricultural ecosystem functions. These are determined by soil type and properties (pH, C content, texture…) and environmental conditions (temperature, humidity…). The cropping system used over time is also a major factor. Especially, tillage management practices are known to modulate the microbiome which can influence the plant growth conditions. In this study, we investigated the soil microorganisms response to plowing and minimum tillage after long-term (15 years) field trials. The factorial experimental design encompasses a mineral fertilization as third treatment (TMS®, a regulator of microbial activities and organic matter decomposition). Soil samples were collected in June under maize crop and for two depths (0-10 and 15-25 cm). The microbiome was profiled using the molecular tools. After total DNA extraction, the molecular microbial biomass (MMB) was determined (µg of DNA/g of soil) and a ratio corresponding to the fungal-to-bacterial abundance was calculated (F/B ratio). The bacterial and fungal diversities were characterized based on the operational taxonomic units after sequencing of the 16S and 18S rRNA gene amplification products, respectively. As assumed, stratification in minimum tillage was observed, with MMB and F/B ratio higher on surface but lower in depth, compared to the plowing practice. On average a higher bacterial diversity (not for fungi) was observed in plowing with slight differences found with depth. Finally, a significant increase in the complexity of interaction networks within the fungal-bacterial community under the amendment was also observed.
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Authors Durenne, B., Delporte, F., Roisin, C., Huyghebaert, B., Dequiedt, S., Maron, P.A., Tripied, J., Ranjard, L.

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