Organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato (Solanum tuberosum L. V7)
BackgroundOrganic fertilizers enhance sustainable agriculture by providing nutrients and supporting microbial communities. However, optimal application rates that maximize potato yield while maintaining rhizosphere microbial diversity remain poorly understood.MethodsFour organic fertilizer levels (0...
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Frontiers Media S.A.
2025-08-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2025.1651178/full |
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| author | Xiaodong Han Jing Yang Jing Yang Qi Li Lan Zhang Yuankai Li Yaoyao Gai Yuying Sang Ziyi Zhang |
| author_facet | Xiaodong Han Jing Yang Jing Yang Qi Li Lan Zhang Yuankai Li Yaoyao Gai Yuying Sang Ziyi Zhang |
| author_sort | Xiaodong Han |
| collection | DOAJ |
| description | BackgroundOrganic fertilizers enhance sustainable agriculture by providing nutrients and supporting microbial communities. However, optimal application rates that maximize potato yield while maintaining rhizosphere microbial diversity remain poorly understood.MethodsFour organic fertilizer levels (0, 40, 60, and 80% nitrogen replacement) were tested on potato rhizosphere bacterial and fungal communities across three growth stages using high-throughput 16S rDNA and ITS sequencing.ResultsBacterial richness increased progressively with organic fertilizer rates (80% > 60% > 40% > 0), with principal coordinate analysis revealing distinct community separations and largest differentiation during tuber expansion under 80% treatment. Bacterial and fungal communities were dominated by Proteobacteria, Acidobacteriota, and Gemmatimonadota, and Ascomycota, Mortierellomycota, and Basidiomycota, respectively. T60 maintained optimal balance of beneficial rhizospheric microorganisms and delivers superior yield outcomes compared with other fertilization regime. Potato yield responded quadratically to organic fertilizer application, with optimal yield of 81,020 kg/ha at 51.25% organic fertilizer rate, while bacterial and fungal diversity correlated with yield.ConclusionModerate organic fertilization (50–60% nitrogen replacement) optimizes both rhizosphere microbial diversity and potato productivity through enhanced nutrient cycling efficiency, providing a sustainable approach for potato production systems. |
| format | Article |
| id | doaj-art-c13d8f0e19bc47aea3cdc286d97389e2 |
| institution | Kabale University |
| issn | 1664-302X |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Microbiology |
| spelling | doaj-art-c13d8f0e19bc47aea3cdc286d97389e22025-08-22T15:43:36ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-08-011610.3389/fmicb.2025.16511781651178Organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato (Solanum tuberosum L. V7)Xiaodong Han0Jing Yang1Jing Yang2Qi Li3Lan Zhang4Yuankai Li5Yaoyao Gai6Yuying Sang7Ziyi Zhang8College of Life Sciences, Inner Mongolia Agriculture University, Hohhot, ChinaCollege of Life Sciences, Inner Mongolia Agriculture University, Hohhot, ChinaVocational and Technical College of Inner Mongolia Agricultural University, Baotou, ChinaCollege of Life Sciences, Inner Mongolia Agriculture University, Hohhot, ChinaAgricultural and Animal Husbandry Technology Extension Center, Chifeng, ChinaCollege of Life Sciences, Inner Mongolia Agriculture University, Hohhot, ChinaCollege of Life Sciences, Inner Mongolia Agriculture University, Hohhot, ChinaCollege of Life Sciences, Inner Mongolia Agriculture University, Hohhot, ChinaCollege of Life Sciences, Inner Mongolia Agriculture University, Hohhot, ChinaBackgroundOrganic fertilizers enhance sustainable agriculture by providing nutrients and supporting microbial communities. However, optimal application rates that maximize potato yield while maintaining rhizosphere microbial diversity remain poorly understood.MethodsFour organic fertilizer levels (0, 40, 60, and 80% nitrogen replacement) were tested on potato rhizosphere bacterial and fungal communities across three growth stages using high-throughput 16S rDNA and ITS sequencing.ResultsBacterial richness increased progressively with organic fertilizer rates (80% > 60% > 40% > 0), with principal coordinate analysis revealing distinct community separations and largest differentiation during tuber expansion under 80% treatment. Bacterial and fungal communities were dominated by Proteobacteria, Acidobacteriota, and Gemmatimonadota, and Ascomycota, Mortierellomycota, and Basidiomycota, respectively. T60 maintained optimal balance of beneficial rhizospheric microorganisms and delivers superior yield outcomes compared with other fertilization regime. Potato yield responded quadratically to organic fertilizer application, with optimal yield of 81,020 kg/ha at 51.25% organic fertilizer rate, while bacterial and fungal diversity correlated with yield.ConclusionModerate organic fertilization (50–60% nitrogen replacement) optimizes both rhizosphere microbial diversity and potato productivity through enhanced nutrient cycling efficiency, providing a sustainable approach for potato production systems.https://www.frontiersin.org/articles/10.3389/fmicb.2025.1651178/fullorganic fertilizerrhizosphere microbiomepotato yield optimizationmicrobial diversitysustainable agriculture |
| spellingShingle | Xiaodong Han Jing Yang Jing Yang Qi Li Lan Zhang Yuankai Li Yaoyao Gai Yuying Sang Ziyi Zhang Organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato (Solanum tuberosum L. V7) Frontiers in Microbiology organic fertilizer rhizosphere microbiome potato yield optimization microbial diversity sustainable agriculture |
| title | Organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato (Solanum tuberosum L. V7) |
| title_full | Organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato (Solanum tuberosum L. V7) |
| title_fullStr | Organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato (Solanum tuberosum L. V7) |
| title_full_unstemmed | Organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato (Solanum tuberosum L. V7) |
| title_short | Organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato (Solanum tuberosum L. V7) |
| title_sort | organic fertilizer application rates affect rhizosphere microbial communities and yield optimization in potato solanum tuberosum l v7 |
| topic | organic fertilizer rhizosphere microbiome potato yield optimization microbial diversity sustainable agriculture |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2025.1651178/full |
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