Abstract
Coal-derived soil amendments have been shown to improve soil physicochemical properties and promote plant growth; however, their effects on rhizosphere microbial communities remain insufficiently understood. In this study, a comprehensive assessment of the impacts of a lignite coal-based, microbially processed amendment on lettuce (Lactuca sativa) growth, soil properties, and rhizosphere microbiota was conducted. Application of the coal-based amendment resulted in a more than two-fold increase in plant fresh weight compared to untreated soil. The amendment significantly improved soil organic matter content but did not increase phosphate or potassium levels. Rhizosphere bacterial and fungal communities were profiled using 16S rRNA and ITS gene sequencing. Principal coordinate analysis revealed that the coal-based amendment, commercial organic fertilizer, and raw coal each induced distinct shifts in microbial community structure. Notably, treatment with the coal-based amendment reduced the relative abundance of Proteobacteria while increasing Acidobacteriota and Chloroflexi in the bacterial community. In fungal communities, the amendment decreased Basidiomycota and enriched Ascomycota. These results suggest that the observed enhancement in plant growth is closely linked to changes in rhizosphere microbial composition and soil organic matter content, highlighting the potential of microbially processed coal products as sustainable soil amendments in agriculture.
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Claims 13
Claim · model-written summary
Coal amendment more than doubled lettuce fresh weight.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- coal-based amendmente0
- Outcome
- plant fresh weighte0
- Direction
- increasee0
- Value
- more than two-folde0
- Comparator
- untreated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of the coal-based amendment resulted in a more than two-fold increase in plant fresh weight compared to untreated soil”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment significantly improved soil organic matter.
- Taxon
- lettuceLactuca sativae1
- Treatment
- amendmente0
- Outcome
- soil organic matter contente0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amendment significantly improved soil organic matter content”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment did not increase phosphate levels.
- Taxon
- lettuceLactuca sativae1
- Treatment
- amendmente0
- Outcome
- phosphatee0
- Direction
- did not increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amendment significantly improved soil organic matter content but did not increase phosphate or potassium levels”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment did not increase potassium levels.
- Taxon
- lettuceLactuca sativae1
- Treatment
- amendmente0
- Outcome
- potassium levelse0
- Direction
- did not increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amendment significantly improved soil organic matter content but did not increase phosphate or potassium levels”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment induced a distinct rhizosphere community shift.
- Taxon
- lettuceLactuca sativae1
- Treatment
- coal-based amendmente0
- Outcome
- microbial community structuree0
- Direction
- shiftse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the coal-based amendment, commercial organic fertilizer, and raw coal each induced distinct shifts in microbial community structure”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Commercial organic fertilizer induced a distinct rhizosphere community shift.
- Taxon
- lettuceLactuca sativae1
- Treatment
- commercial organic fertilizere0
- Outcome
- microbial community structuree0
- Direction
- shiftse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the coal-based amendment, commercial organic fertilizer, and raw coal each induced distinct shifts in microbial community structure”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Raw coal induced a distinct rhizosphere community shift.
- Taxon
- lettuceLactuca sativae1
- Treatment
- raw coale0
- Outcome
- microbial community structuree0
- Direction
- shiftse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the coal-based amendment, commercial organic fertilizer, and raw coal each induced distinct shifts in microbial community structure”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment reduced rhizosphere Proteobacteria abundance.
- Taxon
- lettuceLactuca sativae1
- Treatment
- coal-based amendmente0
- Interactor
- ProteobacteriaPseudomonadotae0symbiont
- Outcome
- relative abundance of Proteobacteriae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment with the coal-based amendment reduced the relative abundance of Proteobacteria”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment increased Acidobacteriota abundance.
- Taxon
- lettuceLactuca sativae1
- Treatment
- coal-based amendmente0
- Interactor
- AcidobacteriotaAcidobacteriotae0symbiont
- Outcome
- Acidobacteriotae0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment with the coal-based amendment reduced the relative abundance of Proteobacteria while increasing Acidobacteriota and Chloroflexi in the bacterial community”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment increased Chloroflexi abundance.
- Taxon
- lettuceLactuca sativae1
- Treatment
- coal-based amendmente0
- Interactor
- ChloroflexiChloroflexotae0symbiont
- Outcome
- Chloroflexie0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment with the coal-based amendment reduced the relative abundance of Proteobacteria while increasing Acidobacteriota and Chloroflexi in the bacterial community”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment decreased Basidiomycota abundance.
- Taxon
- lettuceLactuca sativae1
- Treatment
- amendmente0
- Interactor
- BasidiomycotaBasidiomycotae0symbiont
- Outcome
- Basidiomycotae0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amendment decreased Basidiomycota and enriched Ascomycota”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Coal amendment enriched Ascomycota.
- Taxon
- lettuceLactuca sativae1
- Treatment
- amendmente0
- Interactor
- AscomycotaAscomycotae0symbiont
- Outcome
- Ascomycotae0
- Direction
- enrichede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amendment decreased Basidiomycota and enriched Ascomycota”
e1“lettuce (Lactuca sativa) growth”
Claim · model-written summary
Authors link growth enhancement to rhizosphere composition and soil organic matter.
- Taxon
- lettuceLactuca sativae1
- Outcome
- enhancement in plant growthe0
- Qualifier
- changes in rhizosphere microbial composition and soil organic matter contente0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the observed enhancement in plant growth is closely linked to changes in rhizosphere microbial composition and soil organic matter content”
e1“lettuce (Lactuca sativa) growth”
The same questions in other papers
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See all 78 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.