Impacts of Rotation-Fallow Practices on Bacterial Community Structure in Paddy Fields
ABSTRACT Soil nutrients and microbial community play a central role in determining crop productivity in agroecosystems. However, the relationship between microbial community structure and soil nutrients in various crop rotation-fallow systems remains unclear. Thus, we designed a 3-year crop rotation...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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American Society for Microbiology
2022-08-01
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| Series: | Microbiology Spectrum |
| Subjects: | |
| Online Access: | https://journals.asm.org/doi/10.1128/spectrum.00227-22 |
| _version_ | 1818472868438081536 |
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| author | Na Li Xinmei Li Shujuan Li Shujian Guo Ziwei Wan Guoqin Huang Huifang Xu |
| author_facet | Na Li Xinmei Li Shujuan Li Shujian Guo Ziwei Wan Guoqin Huang Huifang Xu |
| author_sort | Na Li |
| collection | DOAJ |
| description | ABSTRACT Soil nutrients and microbial community play a central role in determining crop productivity in agroecosystems. However, the relationship between microbial community structure and soil nutrients in various crop rotation-fallow systems remains unclear. Thus, we designed a 3-year crop rotation-fallow field with five cropping systems (one continuous cropping, three rotational cropping, and one fallow system). We conducted a comprehensive analysis by evaluating crop yield, soil physicochemical properties, and overall bacteria composition. Our results showed that rotation-fallow treatments markedly influenced the crop yield and soil physicochemical properties. Proteobacteria, Acidobacteriota, and Chloroflexi were the dominant phyla in all rotation-fallow treatments. pH, available-phosphorus, total nitrogen, and soil organic matter had considerable effects on the soil bacterial community structure in 2019; however, only available-phosphorus had an impact on soil bacterial community in each treatment in 2020. In summary, with the increase of tillage years, different rotational fallow systems can increase paddy yield by promoting soil nutrient uptake and increasing the relative abundances of bacteria in paddy fields. IMPORTANCE Soil nutrients and microbial community play a central role in determining crop productivity. Therefore, elucidating the microbial mechanisms associated with different cropping systems is indispensable for understanding the sustainability of agroecosystem. In the present study, we designed a 3-year field rotation experiment using five cropping systems, including one continuous cropping, three rotational cropping, and one fallow system, to indagate the outcomes of soil microbial community structures in the different tillage systems. Our results showed that the different rotational fallow systems had positive impacts on crop yield, soil physicochemical properties, and bacterial community structure and that available phosphorus might be a key determinant for the limited bacterial community structure in various rotation-fallow systems following a 3-year field experiment. This study suggests that crop rotation-fallow systems play critical roles in improving bacterial community structure. |
| first_indexed | 2024-04-14T04:13:23Z |
| format | Article |
| id | doaj.art-befc8aa1b0ca40ceb1aabfbb311659b8 |
| institution | Directory Open Access Journal |
| issn | 2165-0497 |
| language | English |
| last_indexed | 2024-04-14T04:13:23Z |
| publishDate | 2022-08-01 |
| publisher | American Society for Microbiology |
| record_format | Article |
| series | Microbiology Spectrum |
| spelling | doaj.art-befc8aa1b0ca40ceb1aabfbb311659b82022-12-22T02:13:00ZengAmerican Society for MicrobiologyMicrobiology Spectrum2165-04972022-08-0110410.1128/spectrum.00227-22Impacts of Rotation-Fallow Practices on Bacterial Community Structure in Paddy FieldsNa Li0Xinmei Li1Shujuan Li2Shujian Guo3Ziwei Wan4Guoqin Huang5Huifang Xu6Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, ChinaResearch Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, ChinaResearch Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, ChinaResearch Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, ChinaResearch Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, ChinaResearch Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, ChinaResearch Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, ChinaABSTRACT Soil nutrients and microbial community play a central role in determining crop productivity in agroecosystems. However, the relationship between microbial community structure and soil nutrients in various crop rotation-fallow systems remains unclear. Thus, we designed a 3-year crop rotation-fallow field with five cropping systems (one continuous cropping, three rotational cropping, and one fallow system). We conducted a comprehensive analysis by evaluating crop yield, soil physicochemical properties, and overall bacteria composition. Our results showed that rotation-fallow treatments markedly influenced the crop yield and soil physicochemical properties. Proteobacteria, Acidobacteriota, and Chloroflexi were the dominant phyla in all rotation-fallow treatments. pH, available-phosphorus, total nitrogen, and soil organic matter had considerable effects on the soil bacterial community structure in 2019; however, only available-phosphorus had an impact on soil bacterial community in each treatment in 2020. In summary, with the increase of tillage years, different rotational fallow systems can increase paddy yield by promoting soil nutrient uptake and increasing the relative abundances of bacteria in paddy fields. IMPORTANCE Soil nutrients and microbial community play a central role in determining crop productivity. Therefore, elucidating the microbial mechanisms associated with different cropping systems is indispensable for understanding the sustainability of agroecosystem. In the present study, we designed a 3-year field rotation experiment using five cropping systems, including one continuous cropping, three rotational cropping, and one fallow system, to indagate the outcomes of soil microbial community structures in the different tillage systems. Our results showed that the different rotational fallow systems had positive impacts on crop yield, soil physicochemical properties, and bacterial community structure and that available phosphorus might be a key determinant for the limited bacterial community structure in various rotation-fallow systems following a 3-year field experiment. This study suggests that crop rotation-fallow systems play critical roles in improving bacterial community structure.https://journals.asm.org/doi/10.1128/spectrum.00227-22crop rotation-fallowbacteriacommunity structurepaddy field |
| spellingShingle | Na Li Xinmei Li Shujuan Li Shujian Guo Ziwei Wan Guoqin Huang Huifang Xu Impacts of Rotation-Fallow Practices on Bacterial Community Structure in Paddy Fields Microbiology Spectrum crop rotation-fallow bacteria community structure paddy field |
| title | Impacts of Rotation-Fallow Practices on Bacterial Community Structure in Paddy Fields |
| title_full | Impacts of Rotation-Fallow Practices on Bacterial Community Structure in Paddy Fields |
| title_fullStr | Impacts of Rotation-Fallow Practices on Bacterial Community Structure in Paddy Fields |
| title_full_unstemmed | Impacts of Rotation-Fallow Practices on Bacterial Community Structure in Paddy Fields |
| title_short | Impacts of Rotation-Fallow Practices on Bacterial Community Structure in Paddy Fields |
| title_sort | impacts of rotation fallow practices on bacterial community structure in paddy fields |
| topic | crop rotation-fallow bacteria community structure paddy field |
| url | https://journals.asm.org/doi/10.1128/spectrum.00227-22 |
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