Structural and Functional Shift in Soil Bacterial Community in Response to Long-Term Compost Amendment in Paddy Field

Microbial community composition and diversity of agricultural soils primarily depend on management practices. The application of compost on agricultural fields is known to increase soil fertility, which can also help to enhance agricultural productivity. The effects of long-term application of compo...

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Bibliographic Details
Published in:Applied sciences 2021-03, Vol.11 (5), p.2183
Main Authors: Kim, Sookjin, Samaddar, Sandipan, Chatterjee, Poulami, Roy Choudhury, Aritra, Choi, Jeongyun, Choi, Jongseo, Sa, Tongmin
Format: Article
Language:English
Subjects:
Agricultural land
Agricultural practices
Agricultural production
Bacteria
bacterial diversity
Community composition
Composition
Composting
Composts
Crop residues
Crop science
Discriminant analysis
Fertilizers
Genes
Laboratories
Livestock
long-term fertilization
Manures
Microorganisms
next-generation sequencing
Nitrogen
Ordination
Phosphorus
Plant growth
Potassium
Rice
rRNA 16S
Soil amendment
Soil fertility
Soil management
Soil microorganisms
Structure-function relationships
Sustainability
Sustainable agriculture
Taxonomy
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Summary:Microbial community composition and diversity of agricultural soils primarily depend on management practices. The application of compost on agricultural fields is known to increase soil fertility, which can also help to enhance agricultural productivity. The effects of long-term application of compost along with nitrogen (N), phosphorus (P), and potassium (K) (+Compost) on soil bacterial diversity and community profiles were assessed by amplicon sequencing targeting the 16S rRNA gene of bacteria and compared with those on soils that received only NPK but not compost (−Compost). Ordination plot showed treatments to cluster differently, implying changes in community composition, which were validated with taxonomical data showing Firmicutes, Actinobacteria, and their related classes to be significantly higher in +Compost than in −Compost soils. The predicted abundance of functional genes related to plant growth promotion, development, and decomposition was significantly higher in compost-amended soil than in soils without compost. The results are of particular importance as they provide insights into designing management practices to promote agricultural sustainability.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11052183