Multiple cropping effectively increases soil bacterial diversity, community abundance and soil fertility of paddy fields
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View abstract on PubMed
Summary
This summary is machine-generated.Multiple winter cropping, particularly with Chinese milk vetch and rape, enhances soil microbial diversity and abundance, leading to improved soil fertility and increased rice yield. This crop diversification strategy benefits soil health and agricultural productivity in paddy fields.
Area Of Science
- Agricultural Science
- Soil Microbiology
- Ecology
Background
- Crop diversification and multiple cropping are key strategies for aligning plant nutrient needs with soil availability.
- Multiple cropping enhances soil microbial communities, positively impacting crop growth and yield.
- Paddy fields are crucial agricultural systems where soil health directly influences productivity.
Purpose Of The Study
- To investigate the effects of various multiple winter cropping systems on soil microbial communities in paddy fields.
- To analyze how different winter crops (Chinese milk vetch, rape, wheat) influence soil microbial abundance, structure, and diversity.
- To correlate cropping patterns with soil properties and overall paddy yield.
Main Methods
- Eight rice cropping patterns from two multiple cropping systems were selected.
- 16S rRNA high-throughput sequencing was employed to study bacterial community structure and diversity.
- Real-time fluorescence quantitative polymerase chain reaction (PCR) was used to assess microbial abundance.
Main Results
- Multiple winter cropping increased bacterial operational taxonomic units (OTUs), species richness, and community richness in the topsoil (0-20 cm).
- Increased soil potassium and nitrogen content under multiple cropping significantly influenced bacterial diversity and abundance, boosting paddy yield.
- Dominant bacterial phyla included Proteobacteria, Acidobacteria, Nitrospira, and Chloroflexi; Chinese milk vetch and rape cropping enhanced beneficial bacteria while reducing others.
Conclusions
- Winter cropping with Chinese milk vetch and rape significantly improves soil fertility.
- These cropping practices enhance bacterial diversity and abundance in paddy field soils.
- Implementing Chinese milk vetch and rape as winter crops leads to increased rice yields.
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