The Effect of Tillage System and Crop Rotation on Soil Microbial Diversity and Composition in a Subtropical Acrisol
By Patrícia Dörr de Quadros, Kateryna Zhalnina, Austin G. Davis-Richardson, Jennie R. Fagen, Jennifer C. Drew, C. Bayer, Flavio A. O. Camargo, E. Triplett. 2012
122 citations recorded by the source corpus.
Agricultural management alters physical and chemical soil properties, which directly affects microbial life strategies and community composition. The microbial community drives important nutrient cycling processes that can influence soil quality, cropping productivity and environmental sustainability. In this research, a long-term agricultural experiment in a subtropical Acrisol was studied in south Brazil. The plots at this site represent two tillage systems, two nitrogen fertilization regimes and three crop rotation systems. Using Illumina high-throughput sequencing of the 16S rRNA gene, the archaeal and bacterial composition was determined from phylum to species level in the different plot treatments. The relative abundance of these taxes was correlated with measured soil properties. The P, Mg, total organic carbon, total N and mineral N were significantly higher in the no-tillage system. The microbial diversity was higher in the no-tillage system at order, family, genus and species level. In addition, overall microbial composition changed significantly between conventional tillage and no-tillage systems. Anaerobic bacteria, such as clostridia, dominate in no-tilled soil as well as anaerobic methanogenic archaea, which were detected only in the no-tillage system. Microbial diversity was higher in plots in which only cereals (oat and maize) were grown. Soil management influenced soil biodiversity on Acrisol by change of composition and abundance of individual species.
Subfields: Soil Science
View Paper: https://www.semanticscholar.org/paper/8b23c6ccd9a641cadfd121f82c8272ed0a1652c4
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In Soil Science
Citations in the corpus
- Soil aggregate size mediates the impacts of cropping regimes on soil carbon and microbial communities (2015, background): “Verrucomicrobia are important members of the soil microbial community, and are known to fluctuate with soil management practices (Buckley and Schmidt, 2001, Yin et al., 2010, Dorr de Quadros et al., 2012), however the role of these microorganisms in terrestrial ecosystems is poorly understood.”
- The impact of crop rotation on soil microbial diversity: A meta-analysis (2016, background): “…Shannon’s diversity index or richness scores (Chen et al., 2012; Ferreira et al., 2000; Larkin, 2008; Li et al., 2010; Souza et al., 2013), or (2) increase crop diversity over time (Dorr de Quadros et al., 2012), or (3) measure free-living microbial diversity (Herrmann et al., 2014). ted line.”