Effects of Different Tillage Methods on Bacterial Community and Enzyme Activity of Rhizosphere of Flue-Cured Tobacco in Yunnan Mountains

Tong, Wenjie

doi:10.17957/ijab/15.1674

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Soil microbial communities are influenced by multiple factors such as plant type, climate, soil properties and agricultural practice (Bowen et al, 2017). The results of this study also confirm this point, the fungal communities in the rhizosphere soils of the Jiuxiang and Yuxi experimental sites were distributed on both sides of the PC2 axis, and the distance between them was relatively great, indicating that there was a large difference in the fungal communities at the two experimental sites due to the differences in physical and chemical soil properties, climatic and cultivation management measures (Zhang et al, 2016;Tong et al, 2021). But it is worth noting that the fungal community compositions in rhizosphere soils from diseased and healthy plants in the two experimental plots showed the same trends.…”

Section: Discussionsupporting

confidence: 78%

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Effects of Meloidogyne incognita on the fungal community in tobacco rhizosphere

Chen¹,

Gao²,

Deng³

et al. 2022

Revista Brasileira De Ciência Do Solo

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The often widespread and serious Root-Knot Nematode (RKN) disease is an important soil-borne disease affecting tobacco production. This study aimed to understand micro-ecological changes caused by RKN disease and interactions between disease and rhizosphere soil fungal communities. The 18S rRNA gene sequencing was used to study changes in rhizosphere fungal community of tobacco plants having RKN disease. In June 2018, a paired comparison was performed between rhizosphere fungal community structures of healthy tobacco plants and those with RKN disease in Yuxi and Jiuxiang, Yunnan Province, China. Compared with uninfested soil, the OTU abundance, Shannon, ACE and Chao1 indexes of infested soil in the two tobacco areas showed a decreasing trend. Principal Coordinate Analysis showed fungal communities of infested soil and uninfested soil in the two tobacco areas were clustered in different areas, and the community composition was significantly different. Moreover, the dominant fungi community and relative abundance are significantly different at phylum, genus and species levels. More beneficial fungi, such as Penicillium and Aspergillus, were found in soil samples of healthy plants, whereas more pathogenic fungi, such as Phoma and Alternaria, were found in soil samples of diseased plants. In conclusion, changes in fungal community structure and decreases in species diversity and richness were important characteristics of rhizosphere soils from diseased tobacco plants. Disequilibrium in the tobacco rhizosphere micro-ecosystem may allow the development of RKN disease and other more complex diseases.

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Section: Discussionsupporting

confidence: 78%

“…Penicillium participates in the decomposition of organic matter, promotes the cycling of C, N, P and other elements, and degrades a variety of environmentally harmful substances (Luo et al, 2016). Purpureocillium lavendulum is an important nematode biocontrol fungi (Tong et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Effects of Meloidogyne incognita on the fungal community in tobacco rhizosphere

Chen¹,

Gao²,

Deng³

et al. 2022

Revista Brasileira De Ciência Do Solo

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“…Soil microorganisms participate in organic matter transformation, nutrient cycling and fertility formation of soil (Teng et al, 2022;Chen et al, 2022). Their community structure and richness are important indicators for evaluating soil quality, and also play an important role in crop yield (Li et al, 2019;Tong et al, 2021). Due to the vital role of soil microorganisms in driving the organic matter cycle, improving soil quality, improving crop yield and sustainable agricultural development, it has received much attention in soil ecological studies (Tong et al, 2021;Ren et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Their community structure and richness are important indicators for evaluating soil quality, and also play an important role in crop yield (Li et al, 2019;Tong et al, 2021). Due to the vital role of soil microorganisms in driving the organic matter cycle, improving soil quality, improving crop yield and sustainable agricultural development, it has received much attention in soil ecological studies (Tong et al, 2021;Ren et al, 2022). Soil microorganisms serve as the primary regulators of the material cycle within the soil ecosystem, constituting the largest resource pool.…”

Section: Introductionmentioning

confidence: 99%

Influences of tobacco straw return with lime on microbial community structure of tobacco-planting soil and tobacco leaf quality

Jiang,

Zu,

Riaz

et al. 2024

Environ Sci Pollut Res

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Soil amendment is an important strategy to improve soil quality and crop yield. During 2014-2019, we investigated the effects of tobacco straw return with lime on soil nutrients, soil microbial community structure, tobacco leaf yield and quality in southern Anhui, China. A eld experiment was conducted in four treatments: straw removed (CK), straw return (St), straw return with dolomite (St + D), and straw return with lime (St + L). Results showed that after ve years of continuous treatment, the St + L signi cantly increased the soil pH by 16.9%, and the contents of soil alkaline nitrogen (N) and available potassium (K) by 17.2% and 23.0%, respectively, compared with the CK. Moreover, the St + L signi cantly increased tobacco leaf yield (24.0%) and the appearance (9.1%) and sensory (5.9%) quality of ue-cured tobacco leaves. The addition of soil conditioners (straw, dolomite, and lime) resulted in an increase in both the total reads and effective sequences of soil microorganisms. Bacterial diversity was found to be more sensitive to changes in the external environment compared to soil fungi. The application of soil amendments (lime and straw) has been shown to promote the growth of bene cial microorganisms in the soil. Additionally, bacterial species face greater competition and limited availability of resources for survival compared to fungi. Various analytical techniques, such as RDA, correlation analysis, and network analysis, were employed to investigate this nding: soil microorganisms are signi cantly in uenced by the presence of AK, AN and pH contents. These ndings can provide an effective method for improving the quality of ue-cured tobacco leaves and guiding the amelioration of acidic soil in regions where tobacco-rice rotation is practiced.

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“…The application of microbial agents provides a new method of soil improvement that is expected to accelerate straw decomposition, promote nutrient release, increase land productivity, reduce costs, simplify operations, and prevent secondary pollution [11,12]. Soil quality is determined by the structure and richness of soil microorganisms, which play a critical role in crop production [13,14]. Therefore, this new approach has received extensive attention in soil ecological research [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

From Residue to Resource: A Physicochemical and Microbiological Analysis of Soil Microbial Communities through Film Mulch-Enhanced Rice Straw Return Strategies

Wang,

Huang,

Yang

et al. 2024

Agronomy

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Promoting rice straw in situ return is an important strategy for improving soil quality. From 2018 to 2021, we investigated the effects of rice straw return with microbial agents and film covering technology on soil physical and chemical properties at different layer depths, as well as the soil microbial community structure, in Hunan, southern China. This study was designed to evaluate the effects of microbial agents (T1), film mulch covering (T2), and the application of microbial agents combined with film mulch (T3) on the soil physicochemical properties and microbial community after rice straw in situ return. The results show that, after three years of continuous treatment, T3 significantly increased the soil temperature by 17.76–22.97%, T2 significantly increased the water content by 34.27–46.23%, and T1 and T3 significantly increased the soil pH. The addition of microbial agents combined with film mulch resulted in a notable increase in both the number of OTUs and the Chao1 index of soil microorganisms. Additionally, the model of promoting rice straw in situ return (the application of a microbial agent combined with film mulch) was shown to promote the growth of beneficial soil microorganisms. RDA was used for the investigation, and the findings showed that soil microorganisms were significantly influenced by the TOC content, pH, and water content. These findings provide evidence of an effective method for accelerating the decomposition of late rice straw and guiding soil improvement in tobacco–rice rotation regions.

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Effects of Different Tillage Methods on Bacterial Community and Enzyme Activity of Rhizosphere of Flue-Cured Tobacco in Yunnan Mountains

Cited by 5 publications

References 6 publications

Effects of Meloidogyne incognita on the fungal community in tobacco rhizosphere

Effects of Meloidogyne incognita on the fungal community in tobacco rhizosphere

Influences of tobacco straw return with lime on microbial community structure of tobacco-planting soil and tobacco leaf quality

From Residue to Resource: A Physicochemical and Microbiological Analysis of Soil Microbial Communities through Film Mulch-Enhanced Rice Straw Return Strategies

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