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Effects of Tillage and Winter Cover Management in a Maize Soybean Rotation on Soil Bacterial and Fungal Community Composition

Author

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  • Nisarga Kodadinne Narayana

    (Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Starkville, MS 39762, USA)

  • William L. Kingery

    (Department of Plant and Soil Sciences, Mississippi State University, Starkville, MS 39762, USA)

  • Alayna A. Jacobs

    (Jamie L. Whitten Plant Materials Center, Natural Resources Conservation Service-US Department of Agriculture, Coffeeville, MS 38922, USA
    Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA)

  • Jon K. Allison

    (Jamie L. Whitten Plant Materials Center, Natural Resources Conservation Service-US Department of Agriculture, Coffeeville, MS 38922, USA)

  • Shankar Ganapathi Shanmugam

    (Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Starkville, MS 39762, USA
    Department of Plant and Soil Sciences, Mississippi State University, Starkville, MS 39762, USA)

Abstract

The abundance and distribution of soil microbial populations, i.e., microbial diversity is widely promoted as a key tenant of sustainable agricultural practices and/or soil health. A common approach to describing microbial diversity is phylogenetic analysis with high-throughput sequencing of microbial DNA. However, owing to the tremendous amounts of data generated, a continuing effort is required to better assess the effects of agricultural management systems on soil microbial diversity. Here, we report on the combined effects of management systems on bacterial and fungal diversity in a loessal agricultural soil located in north-central Mississippi, USA. Amplicon sequencing was performed using 16S rRNA-gene and ITS2 from soil samples collected from a three-year study with combinations of maize-soybean crop rotation, tillage practices, and winter vegetative covers. Differences were found in microbial fungal β-diversity among the management systems, with distinct clustering patterns for no-tillage combined with either winter weeds or bare-fallow. Management systems showed a significant influence on soil pH and bulk density, which were positively correlated with fungal community composition. Developments in the description and interpretation of soil microbial diversity will contribute to a more accurate understanding of its role in the various functions and processes important to agricultural soil management.

Suggested Citation

  • Nisarga Kodadinne Narayana & William L. Kingery & Alayna A. Jacobs & Jon K. Allison & Shankar Ganapathi Shanmugam, 2022. "Effects of Tillage and Winter Cover Management in a Maize Soybean Rotation on Soil Bacterial and Fungal Community Composition," Land, MDPI, vol. 11(12), pages 1-14, December.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:12:p:2259-:d:999698
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    References listed on IDEAS

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    1. Plastina, Alejandro & Liu, Fangge & Sawadgo, Wendiam & Miguez, Fernando E. & Carlson, Sarah & Marcillo, Guillermo, 2018. "Annual Net Returns to Cover Crops in Iowa," Journal of Applied Farm Economics, Purdue University, vol. 2(2).
    2. Alberto Orgiazzi & Erica Lumini & R Henrik Nilsson & Mariangela Girlanda & Alfredo Vizzini & Paola Bonfante & Valeria Bianciotto, 2012. "Unravelling Soil Fungal Communities from Different Mediterranean Land-Use Backgrounds," PLOS ONE, Public Library of Science, vol. 7(4), pages 1-9, April.
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