Effects of planting Melia azedarach L. on soil properties and microbial community in saline-alkali soil

Li, Na; Shao, Tao; Zhou, Yujie; Hui, Huiying; Gao, Xiumei; Sun, Qingkai; Long, Xiaohua; Yang, Ya; Rengel, Zed

doi:10.22541/au.160902802.21492256/v1

Cited by 4 publications

(6 citation statements)

References 36 publications

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“…Soil DNA extraction, PCR amplification and biological analysis were performed in Beijing Novogene Bioinformation Technology Co., Ltd., using standard methods (Li et al, 2020; Rodrigue,s, et al, 2013; Shao et al, 2018; Zhu et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

Effects of planting quinoa on soil properties and microbiome in saline soil

Shao

Gao

et al. 2022

Land Degrad Dev

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Quinoa is widely cultivated for its nutritional value and its high tolerance to environmental problems. Our study was conducted at two planting densities (LD, 10 plants/ m 2 ; HD, 65 plants/m 2 ) on ameliorated coastal mudflats in Jiangsu Province, China.The microbial composition in soil was determined by high-throughput sequencing technology, and root metabolites were determined by a liquid chromatograph-mass spectrometer (LC-MS). The results showed soil salinity and organic matter were higher at the HD than LD treatment and compared with the non-rhizosphere (bulk) soil, the salinity of the rhizosphere soil was higher. Quinoa grown at HD was taller, with thicker stalks and lower yields per plant, but higher yield per unit area. Amplicon sequencing showed that Proteobacteria, Bacteroidota and Acidobacteria accounted for the absolute majority. Regarding the rhizosphere soil, the Shannon index was higher in the HD than LD, and Proteobacteria and Bacteroidota were more abundant in the HD treatment. Fifty-one differential metabolites were identified by metabolomic assays, belonging to 14 annotated metabolic pathways. S-adenosylmethionine was the most abundant and up-regulated metabolite (fold change >1.67), and was more abundant in the roots from the LD than in HD treatment. Docosahexaenoic acid was more abundant in the HD than LD treatment, and was a down-regulated metabolite.In conclusion, planting density was an important factor affecting quinoa yield; compared with unplanted soil, planting quinoa at low density increased the content of the important metabolite S-adenosylmethionine in the root system of quinoa, and high-density cultivation of quinoa increased soil salinity and microbial abundance and diversity.

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Section: Methodsmentioning

confidence: 99%

Effects of planting quinoa on soil properties and microbiome in saline soil

Shao

Gao

et al. 2022

Land Degrad Dev

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“…It is found that straw returning to saline-alkali soil can significantly improve soil physical properties and increase soil fertility. Li et al [12] studied the effect of straw returning on the physical properties of saline alkali soil and found that straw returning could significantly reduce soil bulk density, and the content of soil water-stable aggregates increased significantly after 2 years of returning. Han et al [13] found that straw returning could improve soil chemical properties to a certain extent, and the effect of decomposed straw on saline-alkali soil was better than that of undecomposed straw.…”

Section: Improvement Effects Of Physical Measuresmentioning

confidence: 99%

“…Li et al [23] found that after planting salt-tolerant plants in saline-alkali soil, the soil salt content decreased significantly, and the soil available nutrients and organic matter content increased compared with the control. Planting some salt-tolerant economic crops in saline-alkali soil can reduce the salt content of soil and improve the economic value of saline alkali soil by picking and mowing.…”

Section: Improvement Effects Of Biological Measuresmentioning

confidence: 99%

Research Progress on Improvement of Saline Alkali Soil

Chen¹,

Liu²

2023

FSE

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Soil salinization is one of the most important issues threatening agricultural production, food security and sustainability in arid and semi-arid regions worldwide. The improvement and comprehensive utilization of saline alkali soil is of great significance for cultivating healthy soil, ensuring global food security and mitigating climate change. This paper summarized the research progress of saline alkali soil improvement technology, and described briefly the causes of saline-alkali land. Moreover, the physical, chemical and biological methods of saline-alkali land improvement were analyzed. The improvement characteristics and effects of different materials and technologies are described. And we proposed suggestions for future research and development of desalination materials and technologies to provide a useful reference for the research and development of efficient improvement technology of saline-alkali soil, and accelerate the improvement of saline-alkali land and improve the quality of cultivated land to a greater extent.

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“…Studies have shown that soil organic matter (SOM) and rice yield increase with rice cultivation, while soil pH and salinity decrease Li et al, 2021;Lu et al, 2019). In recent years, the local government has undertaken massive land development and consolidation projects in the western Songnen Plain to exploit saline-sodic soil, and a considerable area of saline-sodic land has been cultivated for rice cultivation.…”

Section: Introductionmentioning

confidence: 99%

Community assembly processes of soil bacteria and fungi along a chronosequence of rice paddies cultivated on saline‐sodic land

Luo

et al. 2023

Land Degrad Dev

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Saline-alkali soils cover an area of more than 900 million ha and pose an acute threat to global food security. Rice cultivation is an effective method of saline-sodic soil amelioration in the Songnen Plain in northeastern China. However, the changes in soil microbial communities that follow rice cultivation are largely unknown. In this study, soil bacterial and fungal communities were investigated using high-throughput sequencing along a chronosequence of rice paddies cultivated in saline-sodic soils.The results showed that soil fungi and bacteria become more diverse and abundant after rice cultivation compared with uncultivated saline-sodic soil, in combination with the decreased pH and increased soil organic matter, indicating the amelioration of saline-sodic soil. The processes of microbial succession following rice cultivation can be divided into two stages: shorter than and longer than 10 years. Moreover, soil fungi and bacteria exhibited distinct variation patterns as they were dominated by different influential factors. The results indicated that bacteria were more strongly dominated by soil properties than fungi, while the latter were more dependent on vegetation. As rice cultivation continued, fungi exhibited better adaptation and faster succession than bacteria in response to environmental shifts after rice cultivation. Therefore, measures that can enhance plant-microbe interactions may be a viable approach for promoting saline-sodic soil amelioration. This study provided novel insights into the microbial assembly processes following rice cultivation on salinesodic lands.

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Effects of planting Melia azedarach L. on soil properties and microbial community in saline-alkali soil

Cited by 4 publications

References 36 publications

Effects of planting quinoa on soil properties and microbiome in saline soil

Effects of planting quinoa on soil properties and microbiome in saline soil

Research Progress on Improvement of Saline Alkali Soil

Community assembly processes of soil bacteria and fungi along a chronosequence of rice paddies cultivated on saline‐sodic land

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