Biochar-based organic fertilizer application promotes the alleviation of tobacco (Nicotiana tabacum L.) continuous cropping obstacles by improving soil chemical properties and microbial community structure
Abstract Background Intensive monoculture poses a serious threat to agricultural sustainable development due to the phenomenon of continuous cropping obstacles. Although organic amendment has been considered an efficient and environmentally friendly solution to mitigate this tough issue, the associa...
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2025-03-01
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| Online Access: | https://doi.org/10.1186/s12870-025-06266-7 |
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| author | Dan Chen Yujie Zhou Gang Wang Kuai Dai Jiangzhou Li Xueru Song Yongxian Xu Yonghe Cui Xiaoe Yang |
| author_facet | Dan Chen Yujie Zhou Gang Wang Kuai Dai Jiangzhou Li Xueru Song Yongxian Xu Yonghe Cui Xiaoe Yang |
| author_sort | Dan Chen |
| collection | DOAJ |
| description | Abstract Background Intensive monoculture poses a serious threat to agricultural sustainable development due to the phenomenon of continuous cropping obstacles. Although organic amendment has been considered an efficient and environmentally friendly solution to mitigate this tough issue, the associated mechanisms remain poorly understood. Here, a two-year field experiment was conducted with the application of four fertilizers, wood, rice straw, compound biochar-based organic fertilizers (WBF, RBF, CBF) and chemical fertilizer (CF) under tobacco rotation with broad bean and oilseed rape, respectively. This work aims to determine how BFs application alleviates tobacco CCO and to further reveal the underlying action mechanisms primarily focusing on the change of soil micro-ecology environments. Results The results depicted that BFs addition decreased tobacco morbidity (by 15.7–85.0%), heavy metals (Cd, V, Cu, Zn) contents in tobacco, and improved tobacco leaf production yield (by 4.5–20.5%), economic value (by 14.6–34.4%) and chemical quality compared with CF. Rhizosphere soil chemical properties and the structure and diversity of microbial communities were enhanced under BFs treatments, reflecting in the growth of bacterial OTUs number, microbial alpha-diversity, the abundances of some beneficial genera (Arthrobacter, Pseudomonas, Gemmatimonas, Trichoderma, Mortierella, Penicillium, Chaetomium, etc.), and the reduction of the numbers of detrimental microbes (Alternaria, Phytophthora nicotianae and Fusarium oxysporum). Moreover, CBF amendment improved the stability and complexity of microbial co-occurrence networks. Soil total carbon, microbial structure, and diversity were the most important explanatory factors for the increase of tobacco leaf yield and economic value. Conclusions Collectively, BFs application under rotation regime showed the great potential as a practical and environmentally friendly strategy to alleviate tobacco CCO by providing an optimized soil environment. Graphical abstract |
| format | Article |
| id | doaj-art-37eeb27d702e4efd8752737d9042d9ac |
| institution | DOAJ |
| issn | 1471-2229 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | BMC |
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| series | BMC Plant Biology |
| spelling | doaj-art-37eeb27d702e4efd8752737d9042d9ac2025-08-20T03:04:11ZengBMCBMC Plant Biology1471-22292025-03-0125111610.1186/s12870-025-06266-7Biochar-based organic fertilizer application promotes the alleviation of tobacco (Nicotiana tabacum L.) continuous cropping obstacles by improving soil chemical properties and microbial community structureDan Chen0Yujie Zhou1Gang Wang2Kuai Dai3Jiangzhou Li4Xueru Song5Yongxian Xu6Yonghe Cui7Xiaoe Yang8Ministry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang UniversityMinistry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang UniversityMinistry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang UniversityYuxi Tobacco Company, Ltd. of Yunnan ProvinceYuxi Tobacco Company, Ltd. of Yunnan ProvinceYuxi Tobacco Company, Ltd. of Yunnan ProvinceYuxi Tobacco Company, Ltd. of Yunnan ProvinceYuxi Tobacco Company, Ltd. of Yunnan ProvinceMinistry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang UniversityAbstract Background Intensive monoculture poses a serious threat to agricultural sustainable development due to the phenomenon of continuous cropping obstacles. Although organic amendment has been considered an efficient and environmentally friendly solution to mitigate this tough issue, the associated mechanisms remain poorly understood. Here, a two-year field experiment was conducted with the application of four fertilizers, wood, rice straw, compound biochar-based organic fertilizers (WBF, RBF, CBF) and chemical fertilizer (CF) under tobacco rotation with broad bean and oilseed rape, respectively. This work aims to determine how BFs application alleviates tobacco CCO and to further reveal the underlying action mechanisms primarily focusing on the change of soil micro-ecology environments. Results The results depicted that BFs addition decreased tobacco morbidity (by 15.7–85.0%), heavy metals (Cd, V, Cu, Zn) contents in tobacco, and improved tobacco leaf production yield (by 4.5–20.5%), economic value (by 14.6–34.4%) and chemical quality compared with CF. Rhizosphere soil chemical properties and the structure and diversity of microbial communities were enhanced under BFs treatments, reflecting in the growth of bacterial OTUs number, microbial alpha-diversity, the abundances of some beneficial genera (Arthrobacter, Pseudomonas, Gemmatimonas, Trichoderma, Mortierella, Penicillium, Chaetomium, etc.), and the reduction of the numbers of detrimental microbes (Alternaria, Phytophthora nicotianae and Fusarium oxysporum). Moreover, CBF amendment improved the stability and complexity of microbial co-occurrence networks. Soil total carbon, microbial structure, and diversity were the most important explanatory factors for the increase of tobacco leaf yield and economic value. Conclusions Collectively, BFs application under rotation regime showed the great potential as a practical and environmentally friendly strategy to alleviate tobacco CCO by providing an optimized soil environment. Graphical abstracthttps://doi.org/10.1186/s12870-025-06266-7Biochar-based organic fertilizersCrop rotationContinuous cropping obstaclesSoil chemical propertiesRhizosphere microbial community |
| spellingShingle | Dan Chen Yujie Zhou Gang Wang Kuai Dai Jiangzhou Li Xueru Song Yongxian Xu Yonghe Cui Xiaoe Yang Biochar-based organic fertilizer application promotes the alleviation of tobacco (Nicotiana tabacum L.) continuous cropping obstacles by improving soil chemical properties and microbial community structure BMC Plant Biology Biochar-based organic fertilizers Crop rotation Continuous cropping obstacles Soil chemical properties Rhizosphere microbial community |
| title | Biochar-based organic fertilizer application promotes the alleviation of tobacco (Nicotiana tabacum L.) continuous cropping obstacles by improving soil chemical properties and microbial community structure |
| title_full | Biochar-based organic fertilizer application promotes the alleviation of tobacco (Nicotiana tabacum L.) continuous cropping obstacles by improving soil chemical properties and microbial community structure |
| title_fullStr | Biochar-based organic fertilizer application promotes the alleviation of tobacco (Nicotiana tabacum L.) continuous cropping obstacles by improving soil chemical properties and microbial community structure |
| title_full_unstemmed | Biochar-based organic fertilizer application promotes the alleviation of tobacco (Nicotiana tabacum L.) continuous cropping obstacles by improving soil chemical properties and microbial community structure |
| title_short | Biochar-based organic fertilizer application promotes the alleviation of tobacco (Nicotiana tabacum L.) continuous cropping obstacles by improving soil chemical properties and microbial community structure |
| title_sort | biochar based organic fertilizer application promotes the alleviation of tobacco nicotiana tabacum l continuous cropping obstacles by improving soil chemical properties and microbial community structure |
| topic | Biochar-based organic fertilizers Crop rotation Continuous cropping obstacles Soil chemical properties Rhizosphere microbial community |
| url | https://doi.org/10.1186/s12870-025-06266-7 |
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