Paper · 2023 · Frontiers in Plant Science

Intercropping system modulated soil–microbe interactions that enhanced the growth and quality of flue-cured tobacco by improving rhizospheric soil nutrients, microbial structure, and enzymatic activities

Muqiu Zhou; Chenglin Sun; Bin Dai; et al.

12
claims
23
verbatim quotes
28
citations
3
research areas
✓
Open access · cc-by

Abstract

L.) interaction remains unclear and the contribution of this triple interaction to tobacco growth is not predictable, the effects of intercropping on soil nutrients, enzymatic activity, microbial community composition, plant growth, and plant quality were studied, and the regulatory mechanism of intercropping on plant productivity and soil microenvironment (fertility and microorganisms) were evaluated. The results showed that the soil organic matter (OM), available nitrogen (AN), available phosphorus (AP), available potassium (AK), the urease activity (UE) and sucrase activity (SC), the diversity, abundance, and total and unique operational taxonomic units (OTUs) of bacteria and fungi as well as plant biomass in T1 (intercropping onion), T2 (intercropping endive), and T3 (intercropping lettuce) treatments were significantly higher than those of the controls (monocropping tobacco). Although the dominant bacteria and fungi at the phylum level were the same for each treatment, LEfSe analysis showed that significant differences in community structure composition and the distribution proportion of each dominant community were different. Proteobacteria, Acidobacteria, and Firmicutes of bacteria and Ascomycota and Basidiomycetes of fungi in T1, T2, and T3 treatments were higher than those of the controls. Redundancy analysis (RDA) suggested a close relation between soil characteristic parameters and microbial taxa. The correlation analysis between the soil characteristic parameters and the plant showed that the plant biomass was closely related to soil characteristic parameters. In conclusion, the flue-cured tobacco intercropping not only increased plant biomass and improved chemical quality but also significantly increased rhizospheric soil nutrient and enzymatic activities, optimizing the microbial community composition and diversity of rhizosphere soil. The current study highlighted the importance of microbe-soil-tobacco interactions in maintaining plant productivity and provided the potential fertilization practices in flue-cured tobacco production to maintain ecological sustainability.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 12

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Onion intercropping increased tobacco biomass.

Treatment
intercropping onione0
Outcome
plant biomasse0
Direction
highere0
Comparator
monocropping tobaccoe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“plant biomass in T1 (intercropping onion), T2 (intercropping endive), and T3 (intercropping lettuce) treatments were significantly higher than those of the controls (monocropping tobacco).”

✓ located verbatim in the source · abstract, characters 705–893 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Endive intercropping increased tobacco biomass.

Treatment
intercropping endivee0
Outcome
plant biomasse0
Direction
highere0
Comparator
monocropping tobaccoe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“plant biomass in T1 (intercropping onion), T2 (intercropping endive), and T3 (intercropping lettuce) treatments were significantly higher than those of the controls (monocropping tobacco).”

✓ located verbatim in the source · abstract, characters 705–893 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Lettuce intercropping increased tobacco biomass.

Treatment
intercropping lettucee0
Outcome
plant biomasse0
Direction
highere0
Comparator
monocropping tobaccoe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“plant biomass in T1 (intercropping onion), T2 (intercropping endive), and T3 (intercropping lettuce) treatments were significantly higher than those of the controls (monocropping tobacco).”

✓ located verbatim in the source · abstract, characters 705–893 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Intercropping raised rhizosphere organic matter and available N, P and K.

Treatment
Intercropping systemt1
Outcome
soil organic matter (OM), available nitrogen (AN), available phosphorus (AP), available potassium (AK)e0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“the soil organic matter (OM), available nitrogen (AN), available phosphorus (AP), available potassium (AK)”

✓ located verbatim in the source · abstract, characters 430–536 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 108–115 · show in text ↑
t1

“Intercropping system”

✓ located verbatim in the source · title, characters 0–20 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Intercropping raised urease and sucrase activity.

Treatment
Intercropping systemt1
Outcome
urease activity (UE) and sucrase activity (SC)e0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“the urease activity (UE) and sucrase activity (SC)”

✓ located verbatim in the source · abstract, characters 538–588 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 108–115 · show in text ↑
t1

“Intercropping system”

✓ located verbatim in the source · title, characters 0–20 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Intercropping increased bacterial and fungal diversity, abundance and OTUs.

Treatment
Intercropping systemt1
Outcome
diversity, abundance, and total and unique operational taxonomic units (OTUs) of bacteria and fungie0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“the diversity, abundance, and total and unique operational taxonomic units (OTUs) of bacteria and fungi”

✓ located verbatim in the source · abstract, characters 590–693 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 108–115 · show in text ↑
t1

“Intercropping system”

✓ located verbatim in the source · title, characters 0–20 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Intercropping altered rhizosphere community structure.

Outcome
community structure composition and the distribution proportion of each dominant communitye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“significant differences in community structure composition and the distribution proportion of each dominant community were different.”

✓ located verbatim in the source · abstract, characters 1016–1149 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 108–115 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Proteobacteria, Acidobacteria and Firmicutes were higher under intercropping.

Treatment
T1, T2, and T3 treatmentse0
Outcome
Proteobacteria, Acidobacteria, and Firmicutes of bacteriae0
Direction
highere0
Comparator
controlse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Proteobacteria, Acidobacteria, and Firmicutes of bacteria and Ascomycota and Basidiomycetes of fungi in T1, T2, and T3 treatments were higher than those of the controls.”

✓ located verbatim in the source · abstract, characters 1150–1319 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 108–115 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ascomycota and Basidiomycetes were higher under intercropping.

Treatment
T1, T2, and T3 treatmentse0
Outcome
Ascomycota and Basidiomycetes of fungie0
Direction
highere0
Comparator
controlse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Proteobacteria, Acidobacteria, and Firmicutes of bacteria and Ascomycota and Basidiomycetes of fungi in T1, T2, and T3 treatments were higher than those of the controls.”

✓ located verbatim in the source · abstract, characters 1150–1319 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 108–115 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Soil characteristics were closely related to microbial taxa.

Outcome
microbial taxae0
Qualifier
soil characteristic parameterse0

Not reportedSettingDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Redundancy analysis (RDA) suggested a close relation between soil characteristic parameters and microbial taxa.”

✓ located verbatim in the source · abstract, characters 1320–1431 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 108–115 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Tobacco biomass was closely related to soil characteristics.

Outcome
plant biomasse0
Qualifier
soil characteristic parameterse0

Not reportedSettingDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“the plant biomass was closely related to soil characteristic parameters.”

✓ located verbatim in the source · abstract, characters 1526–1598 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 108–115 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping improved tobacco chemical quality.

Treatment
intercroppinge0
Outcome
chemical qualitye0
Direction
improvede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“the flue-cured tobacco intercropping not only increased plant biomass and improved chemical quality”

✓ located verbatim in the source · abstract, characters 1614–1713 · show in text ↑

Cichorium endivia · growth · Nicotiana tabacum (tobacco)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 reporting no difference from an alternative

  1. no effect
See all 2 papers →

intercropping · quality: general · Nicotiana tabacum (tobacco)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

intercropping · growth · Nicotiana tabacum (tobacco)Results agree

9 papers: 9 positive, 0 negative or no effect

8 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 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.