Chemical fertilizer reduction with organic fertilizer effectively improve soil fertility and microbial community from newly cultivated land in the Loess Plateau of China

Han, Jianqiao; Dong, Yunyun; Zhang, Man

doi:10.1016/j.apsoil.2021.103966

Cited by 117 publications

(70 citation statements)

References 77 publications

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“…The composted cow manure might also play an important role, as the five-year average yield recorded a 3% increase in CK treatment compared with conventional fertilizer treatment (Table 1). This result was consistent with those of previous studies which reported that chemical fertilizer reduction and organic fertilizer addition can improve soil quality, increase SOM, maintain soil productivity, and increase vegetable or grain yields (Wang et al, 2020;Han et al, 2021).…”

Section: Effects Of Inoculums On the N Metabolic Functions Of Soil Microbessupporting

confidence: 93%

The Long-Term Effects of Using Phosphate-Solubilizing Bacteria and Photosynthetic Bacteria as Biofertilizers on Peanut Yield and Soil Bacteria Community

et al. 2021

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Microbial inoculation is a promising strategy to improve crop yields and reduce the use of chemical fertilizers, thereby creating environment-friendly agriculture. In this study, the long-term (5 years) effects of a phosphate-solubilizing bacterium Burkholderia cepacia ISOP5, a purple non-sulfur bacterium Rhodopseudomonas palustris ISP-1, and a mixed inoculation of these two bacteria (MB) on peanut yield, soil microbial community structure, and microbial metabolic functions were evaluated in a field experiment. After 5 years of inoculation, total peanut yield with B. cepacia ISOP5, R. palustris ISP-1, and MB treatments increased by 8.1%, 12.5%, and 19.5%, respectively. The treatments also significantly promoted the absorption of N and increased the protein content in peanut seeds. Nutrient content also increased to some extent in the bacteria-inoculum-treated soil. However, bacterial community diversity and richness were not significantly affected by bacterial inoculums, and only minor changes occurred in the bacterial community composition. Functional prediction revealed that bacterial inoculums reduced the relative abundance of those genes associated with P uptake and transport as well as increased the abundance of genes associated with inorganic P solubilization and organic P mineralization. Bacterial inoculums also increased the total relative abundance of genes associated with N metabolism. In addition to developing sustainable and eco-friendly agricultural practice, crop inoculation with B. cepacia ISOP5 and R. palustris ISP-1 would improve soil fertility, enhance microbial metabolic activity, and increase crop yield.

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Section: Effects Of Inoculums On the N Metabolic Functions Of Soil Microbessupporting

confidence: 93%

The Long-Term Effects of Using Phosphate-Solubilizing Bacteria and Photosynthetic Bacteria as Biofertilizers on Peanut Yield and Soil Bacteria Community

et al. 2021

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“…The inhibition effects can be due to their ability to induce host-plant's natural defense response mechanisms (Lastochkina et al, 2018). The growth of dung saprotroph requires a great deal of nutrients, including nitrogen sources (Han, Dong & Zhang, 2021). The lower soil nitrate content in the NCT treatment may be the reason of the inhibition effect on dung saprotroph.…”

Section: Discussionmentioning

confidence: 99%

Changes in soil bacterial and fungal communities in response to Bacillus megaterium NCT-2 inoculation in secondary salinized soil

Wang

Chu

Liu

et al. 2021

PeerJ

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Background Secondary salinized soil in greenhouses often contains excess nitrate. Inoculation of Bacillus megaterium NCT-2 with nitrate assimilation ability represents an attractive approach for soil remediation. However, the effects of NCT-2 on the structure and function of soil microbial communities have not been explored. Methods Greenhouse experiments were carried out to investigate changes in soil properties, Brassica chinensis L. growth, bacterial, and fungal community structure and function in response to NCT-2 inoculation. Results The NCT-2 inoculant significantly reduced the nitrate content in B. chinensis and inhibited the rebound of soil nitrate in the later stage. The shifts of bacterial community structure and function by NCT-2 was negligible, and a greater disturbance of soil fungal community structure and function was observed, for example the strong inhibitory effect on ectomycorrhizal fungi. These results indicated that the NCT-2 inoculant likely achieved the remediation effect in secondary salinized soil by shifting fungal community. The present findings add to the current understanding of microbial interactions in response to bacterial inoculation and can be of great significance for the application of NCT-2 inoculants in secondary salinized soil remediation.

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“…Gammaproteobacteria is classi ed as a copiotrophic bacterial taxon, which has the capacity to grow quickly by utilizing labile compounds, particularly dissolved organic matter (Wang et In this study, we also observed that S. salsa saltmarshes possessed higher WSON concentrations than S. alterni ora saltmarshes, and higher WSOC concentrations than P. australis saltmarshes (Table S1). The high WSOC and WSON concentrations increased the presence of Gammaproteobacteria in the S. salsa saltmarsh (Cleveland et al 2007;Han et al 2021). Additionally, when the supply of dissolved organic matter is su cient Gammaproteobacteria will grow better under stable water conditions (Figueroa et al 2021).…”

Section: )mentioning

confidence: 99%

Plant Growth Modifications Due to Coastal Embankments Affect Soil Bacterial and Archaeal Communities Over the Growing Season in Salt Marshes of Eastern China

Feng

Qiao

Xia

et al. 2022

Preprint

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Aims: Although the influences of coastal embankments on physicochemical soil properties and carbon (C) and nitrogen (N) cycling have been widely studied, the mechanisms of their effects on soil microbial ecologies remain poorly understood. Thus, the aim of this study was to investigate variations in the diversity and composition of soil bacterial and archaeal communities between natural and embanked saltmarshes, as well as the determinants that drive these variations.Methods: 16S rRNA gene sequence analysis was performed to assess the impacts of embankments on the bacterial and archaeal communities of native Suaeda salsa, Phragmites australis, and invasive Spartina alterniflora saltmarshes on the east coast of China.Results: Embankments were found to significantly decrease the microbial diversity of the S. alterniflora salt marsh, while they increased the OTU richness of the P. australis salt marsh. Embankments modified the compositions of soil bacterial and archaeal communities in both the S. alterniflora and P. australis salt marshes. However, variations in the microbial diversity, richness, and community compositions between the native and embanked S. salsa salt marshes were insignificant. Conclusions: These results were possibly because the embankment significantly altered soil nutrient substrate levels (e.g., soil organic C and N) by variations in plant residues and physiochemical soil properties in S. alterniflora and P. australis saltmarshes, whereas the embankment had no observable changes in the soil nutrient substrate and the plant residue in S. salsa saltmarsh. This study also elucidated the effects of coastal embankments on biogeochemical cycles, and highlighted their potential hazards to ecosystems.

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Chemical fertilizer reduction with organic fertilizer effectively improve soil fertility and microbial community from newly cultivated land in the Loess Plateau of China

Cited by 117 publications

References 77 publications

The Long-Term Effects of Using Phosphate-Solubilizing Bacteria and Photosynthetic Bacteria as Biofertilizers on Peanut Yield and Soil Bacteria Community

The Long-Term Effects of Using Phosphate-Solubilizing Bacteria and Photosynthetic Bacteria as Biofertilizers on Peanut Yield and Soil Bacteria Community

Changes in soil bacterial and fungal communities in response to Bacillus megaterium NCT-2 inoculation in secondary salinized soil

Plant Growth Modifications Due to Coastal Embankments Affect Soil Bacterial and Archaeal Communities Over the Growing Season in Salt Marshes of Eastern China

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