Abstract
The imbalanced soil nutrient status caused by the long-term monoculture of flue-cured tobacco are a concern. The tobacco-maize relay intercropping, widely used in Yunnan, may improve soil nutrients by enhancing the soil microbial community, but this remains unexplored. This study employed high-throughput sequencing technology to examine soil microbial diversity under tobacco monoculture and tobacco-maize relay intercropping, using the varieties Hongda and K326, respectively. The results indicated that tobacco-maize relay intercropping significantly enhanced root biomass compared to tobacco monoculture, with no significant effect on aboveground biomass. This intercropping treatment also significantly improved soil physicochemical properties, including soil pH, total phosphorus, available phosphorus, and available potassium, which was associated with an increase in the soil microbial community (as indicated by the Chao1 and Shannon indices). Specifically, the abundance of arbuscular mycorrhizal fungi, Nitrospira, and Acidobacteria increased, but the abundance of Chloroflexi decreased. Therefore, these findings suggest that tobacco-maize relay intercropping can improve soil physicochemical properties and enhance soil nutrient supply.
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Claims 7
Claim · model-written summary
Relay intercropping increased tobacco root biomass relative to monoculture.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- tobacco-maize relay intercroppinge0
- Outcome
- root biomasse0
- Direction
- enhancede0
- Comparator
- tobacco monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco-maize relay intercropping significantly enhanced root biomass compared to tobacco monoculture”
Claim · model-written summary
Relay intercropping had no significant effect on aboveground biomass.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- tobacco-maize relay intercroppinge0
- Outcome
- aboveground biomasse1
- Direction
- no significant effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under tobacco monoculture and tobacco-maize relay intercropping”
e1“no significant effect on aboveground biomass”
t0“tobacco–maize relay intercropping pattern”
Claim · model-written summary
Relay intercropping improved soil pH, total phosphorus, available phosphorus and available potassium.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- intercropping treatmente0
- Outcome
- soil pH, total phosphorus, available phosphorus, and available potassiume0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This intercropping treatment also significantly improved soil physicochemical properties, including soil pH, total phosphorus, available phosphorus, and available potassium”
t0“tobacco–maize relay intercropping pattern”
Claim · model-written summary
Improved soil properties were associated with increased microbial community diversity.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- relay intercroppingt0
- Outcome
- soil microbial communitye0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which was associated with an increase in the soil microbial community (as indicated by the Chao1 and Shannon indices)”
t0“tobacco–maize relay intercropping pattern”
Claim · model-written summary
Arbuscular mycorrhizal fungi, Nitrospira and Acidobacteria increased under relay intercropping.
- Taxon
- tobaccoNicotiana tabacumt0
- Outcome
- abundance of arbuscular mycorrhizal fungi, Nitrospira, and Acidobacteriae0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the abundance of arbuscular mycorrhizal fungi, Nitrospira, and Acidobacteria increased”
t0“tobacco–maize relay intercropping pattern”
Claim · model-written summary
Chloroflexi abundance decreased under relay intercropping.
- Taxon
- tobaccoNicotiana tabacumt0
- Outcome
- abundance of Chloroflexie0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the abundance of Chloroflexi decreased”
t0“tobacco–maize relay intercropping pattern”
Claim · model-written summary
The authors suggest relay intercropping can improve soil properties and nutrient supply.
- Taxon
- tobaccoNicotiana tabacume0
- Outcome
- improve soil physicochemical properties and enhance soil nutrient supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tobacco-maize relay intercropping can improve soil physicochemical properties and enhance soil nutrient supply”
The same questions in other papers
intercropping · nutrient: content · Nicotiana tabacum (tobacco)Positive and negative results
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See all 8 papers →intercropping · growth · Nicotiana tabacum (tobacco)Results agree
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- positive
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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.