Bio-fertilizer and rotten straw amendments alter the rhizosphere bacterial community and increase oat productivity in a saline–alkaline environment
Type de document
journalArticle
Langue source
Anglais
Titre français
Titre anglais
Bio-fertilizer and rotten straw amendments alter the rhizosphere bacterial community and increase oat productivity in a saline–alkaline environment
Auteur(s)
- LU Peina
- BAINARD Luke D.
- MA Bin
- LIU Jinghui
Editeur(s)
Autre(s)
Id
H6B8QPQD
Version
2750
Date ajout
22 décembre 2020 13:15
Date modification
22 décembre 2020 13:15
Résumé anglais
Saline–alkaline conditions can limit crop productivity and the role of soil microbes in nutrient cycling in arid and semi-arid regions throughout the world. A better understanding of how soil amendments and plant varieties affect rhizosphere microbial communities in saline–alkaline environments is important for the development of sustainable and productive agricultural systems under these challenging conditions. The objective of this study was to determine the effect of organic soil amendments on crop yield, soil physicochemical properties and rhizosphere bacterial communities of two oat cultivars in a saline–alkaline soil. The experiment was conducted in a semi-arid region of Northern China and involved growing two oat cultivars with varying levels of saline–alkaline tolerance under four different amendment treatments: (1) control (no amendments), (2) bio-fertilizer, (3) rotten straw, and (4) combination of bio-fertilizer and rotten straw. The combined bio-fertilizer and rotten straw amendment treatment resulted in the highest oat yields, reduced soil pH, and increased soil salt content for both cultivars. Baiyan2 (tolerant cultivar) had a higher bacterial α-diversity, relative abundance of Proteobacteria and Acidobacteria, and lower relative abundance of Firmicutes compared to Caoyou1 (sensitive cultivar). The rotten straw treatment and combined amendment treatment decreased bacterial α-diversity and the abundance of Proteobacteria, and increased the abundance of Firmicutes, which were positively correlated with soil salt, available nitrogen, phosphorous and potassium for both cultivars. Our study suggested using tolerant oat cultivars with the combined application of rotten straw and bio-fertilizer could be an effective strategy in remediating saline–alkaline soils.
Note
None
CRAW tags
- AB - Utile à l'AB
- FREDO biologie et travail du sol
- FREDO fertilisation
- GEO Chine
- avoine
- biofertilisation
- céréale
WEB tags
Titre de la publication
Scientific Reports
Volume
10
Pages
19896
Date caractères
2020-11-16
Date publication
16 novembre 2020
Doi
10.1038/s41598-020-76978-3
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Issn
2045-2322
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