Microbial biomass, metabolic functional diversity, and activity are affected differently by tillage disturbance and maize planting in a typical karst calcareous soil

Xiao, Dan; Xiao, Shuangshuang; Ye, Yingying; Zhang, Wei; He, Xingyuan; Wang, Kelin

doi:10.1007/s11368-018-2101-5

Cited by 31 publications

(18 citation statements)

References 115 publications

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“…Soil microorganisms play an important role in biogeochemical cycle, which were affected by different fertilizer management and was closely relative with crop growth, nutrient cycling, and sustainability of soil productivity 1 . Soil microbial activity and community structure were affected by different agriculture management measures, such as the crop types, tillage, fertilizer regime, irrigation patterns, and so on [2][3][4] . Soil physicochemical properties were mainly affected by different fertilizer management, and the soil microbial activities and communities were also changed under application of different fertilizer condition 5 .…”

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confidence: 99%

Effects of short-term manure nitrogen input on soil microbial community structure and diversity in a double-cropping paddy field of southern China

Tang

Xiao

et al. 2020

Sci Rep

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The soil physicochemical properties and soil microbial communities were affected by different fertilizer management. Fertilizer regime were closely relative to the soil texture and nutrient status in a doublecropping paddy field of southern China. However, there was limited information about the influence of different manure nitrogen (N) input on soil microbial communities in a double-cropping rice (Oryza sativa L.) field. Therefore, the short-term different manure N input rate management on soil bacterial and fungal diversity in a double-cropping paddy field of southern China were studied by using Illumina sequencing and quantitative real-time polymerase chain reaction technology in the present paper. The filed experiment were including 100% N of chemical fertilizer (M0), 30% N of organic manure and 70% N of chemical fertilizer (M30), 50% N of organic manure and 50% N of chemical fertilizer (M50), 100% N of organic manure (M100), and without N fertilizer input as control (CK). The results showed that diversity indices of soil microbial communities with application of organic manure and chemical N fertilizer treatments were higher than that of CK treatment. Application of organic manure and chemical N fertilizer management increase soil bacterial abundance of the phylum Actinobacteria, Proteobacteria and Gammaproteobacteria, and soil fungi abundance of the phylum Basidiomycota and Zygomycota were also increased. Compared with CK treatment, the value of Richness, Shannon and McIntosh indices, and taxonomic diversity were increased with M30, M50 and M100 treatments. This finding demonstrated that M30, M50 and M100 treatments modify soil bacterial and fungal diversity. Therefore, the combined application of organic manure and chemical fertilizer N management could significantly increase the abundance of profitable functional bacteria and fungi species in a doublecropping rice field of southern China.

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confidence: 99%

Effects of short-term manure nitrogen input on soil microbial community structure and diversity in a double-cropping paddy field of southern China

Tang

Xiao

et al. 2020

Sci Rep

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“…A high MBC: MBN ratio indicates a greater proportion of fungi compared to bacteria. Reduced tillage promotes fungal growth and thus increases the fungal-to-bacteria biomass ratio, which is likely attributed to less disruption by fungal hyphal networks and increased soil moisture 38 . However, our results show that tillage did not have any significant effect on MBC, MBN or MBC: N (Fig.…”

Section: Discussionmentioning

confidence: 99%

Effects of green-manure and tillage management on soil microbial community composition, nutrients and tree growth in a walnut orchard

Dong

Zhang

et al. 2021

Sci Rep

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This study characterized the effect of green manures (February orchid, hairy vetch, rattail fescue and a no-green-manure control) and the termination method (flail or disk) on nutrient contents, enzyme activities, microbial biomass, microbial community structure of rhizosphere soil and vegetative growth of walnut tree. All three selected green manures significantly enhanced the water content, organic C, total N and available P. The rattail fescue significantly decreased the mineral N. Total organic C, total N, mineral N and available P were significantly greater under flail than under disk. Hairy vetch and February orchid significantly improved levels of soil β-glucosidase, N-acetyl-glucosaminidase and acid phosphatase activity, whereas rattail fescue improved only β-glucosidase activity. All of the green manures significantly decreased phenoloxidase activity. β-glucosidase, N-acetyl-glucosaminidase and acid phosphatase activities were significantly greater under flail relative to disk. The termination method had no significant effect on phenoloxidase activity. The different types of green manures and termination methods significantly altered the soil microbial biomass and microbial community structure. The green-manure treatments were characterized by a significantly greater abundance of Gram-positive (Gram +) bacteria, total bacteria and saprophytic fungi compared to the control. Hairy vetch significantly decreased the abundance of arbuscular mycorrhizal fungi (AMF) while February orchid and rattail fescue increased their abundance compared to the no-green-manure treatment. The abundance rates of Gram+ bacteria, actinomycetes, saprophytic fungi and AMF were significantly greater in soils under flail than under disk. In terms of vegetative growth of walnut tree, hairy vetch showed the greatest positive effects. The growth of walnut tree was significantly greater under flail relative to disk. Our results indicate that green-manure application benefits the rhizosphere soil micro-ecology, rhizosphere soil nutrient contents and tree growth. Overall, the hairy vetch and flail combined treatment is recommended for walnut orchards in northern China.

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“…However, Sirisha et al [1] results found that soil microbial community were increased under combined application of crop residue with conservation tillage conditions. Other studies found that both soil microorganism metabolic activity, Shannon index and Simpson index were increased with no-tillage and residue retention management [7,16].…”

Section: Introductionmentioning

confidence: 91%

Functional diversity of rhizosphere soil microbial communities in response to different tillage and crop residue retention in a double-cropping rice field

Tang

Xiao

et al. 2020

PLoS ONE

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Microbial community functional diversity is a sensitive indicator of soil quality, soil management such as tillage and crop residue which can affect the microbial community functional diversity of paddy field. However, there is still limited information about the influence of different tillage and crop residue management on rhizosphere soil microbial community functional diversity in a double-cropping rice (Oryza sativa L.) field. Therefore, four tillage treatments were set up in paddy field, tillage treatments were included: conventional tillage with residue incorporation (CT), rotary tillage with residue incorporation (RT), no-tillage with residue retention (NT), and rotary tillage with residue removed as control (RTO). And the effects of CT, RT, NT, and RTO treatments on the average well color development (AWCD), genetic diversity indices and carbon source utilization of rhizosphere soil were studied in the present paper. The results showed that the values of AWCD with CT, RT and NT treatments were higher than that of RTO treatment. It was implied that application of crop residue management resulted in the variation of the carbon utilization efficiency of rhizosphere soil microbial communities. At maturity stages of early and late rice, the Richness indices, Shannon indices and McIntosh indices with CT treatment were significantly higher than that of RTO treatment, and with the order as CT>RT>NT>RTO. Principal component analysis (PCA) results indicated that there were significant differences in carbon substrate utilization patterns among different tillage treatments. Carbohydrates and amino acids were the main carbon resources utilized by rhizosphere soil microbes. Therefore, the combined application of tillage with crop residue management could significantly increase the rhizosphere soil microbial community functional diversity in the double-cropping paddy field of southern China.

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Microbial biomass, metabolic functional diversity, and activity are affected differently by tillage disturbance and maize planting in a typical karst calcareous soil

Cited by 31 publications

References 115 publications

Effects of short-term manure nitrogen input on soil microbial community structure and diversity in a double-cropping paddy field of southern China

Effects of short-term manure nitrogen input on soil microbial community structure and diversity in a double-cropping paddy field of southern China

Effects of green-manure and tillage management on soil microbial community composition, nutrients and tree growth in a walnut orchard

Functional diversity of rhizosphere soil microbial communities in response to different tillage and crop residue retention in a double-cropping rice field

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