Abstract
The objectives of this study were to reveal the soil microbial structures in the rhizosphere soil of the delayed cultivation and to evaluate the effects of water stress and bacterial fertilizer on major bacteria. The experiment was conducted in 2019 in Yongdeng County, Gansu Province. Three treatments of water regulation were set, including the moderate water stress, mild water stress and adequate water supply treatment with the bacterial fertilizer added at the levels of no addition (0 g), small addition (75 g) and large addition (150 g), respectively. The results showed that the relative abundance of dominant species of soil microorganisms was significantly higher under sufficient water supply and mild water stress treatment than under moderate water stress treament. Under the mild water stress condition, the relative abundance of the most dominant species in each classification level sequentially decreased with the bacterial fertilizer added increasingly. Adding a small amount of bacterial treatment fertilizer to moderate water stress can improve the overall abundance of soil microbial communities during the growth period of new shoots. It was found that Proteobacteria, Bacteroidetes, Gemmatimonadetes, Actinobacteria, Firmicutes, Acidobacteria, Chloroflexi, Planctomycetes, Thaumarchaeota, Verrucomicrobia, and the other bacteria were the major bacterial phyla in the rhizosphere soil of delayed cultivation grapes, among, which Proteobacteria were the most dominant group. Therefore, adding a small amount of bacterial fertilizer under the mild water stress treatment can not only improve the diversity and richness of soil microorganisms during the fruit expansion period, but also significantly save water resources compared with the traditional irrigation regimes.
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Claims 7
Claim · model-written summary
Sufficient water supply and mild stress had higher dominant microbial relative abundance than moderate stress.
Verbatim
e0“relative abundance of dominant species of soil microorganisms was significantly higher under sufficient water supply and mild water stress treatment than under moderate water stress treament”
t0“Grapes”
Claim · model-written summary
Under mild water stress, increasing bacterial fertilizer lowered dominant species abundance across classification levels.
Verbatim
e0“Under the mild water stress condition, the relative abundance of the most dominant species in each classification level sequentially decreased with the bacterial fertilizer added increasingly.”
t0“Grapes”
Claim · model-written summary
A small bacterial fertilizer addition under moderate stress improved overall microbial abundance during new shoot growth.
- Taxon
- Grapest0
- Organ / stage
- new shootse0
- Treatment
- a small amount of bacterial treatment fertilizere0
- Outcome
- overall abundance of soil microbial communitiese0
- Direction
- improvee0
Not reportedComparator
Verbatim
e0“Adding a small amount of bacterial treatment fertilizer to moderate water stress can improve the overall abundance of soil microbial communities during the growth period of new shoots.”
t0“Grapes”
Claim · model-written summary
Proteobacteria were the most dominant bacterial phylum in the grape rhizosphere.
- Taxon
- Grapest0
- Interactor
- ProteobacteriaPseudomonadotae0other
- Outcome
- most dominant groupe0
Verbatim
e0“Proteobacteria were the most dominant group”
t0“Grapes”
Claim · model-written summary
The rhizosphere contained Proteobacteria, Bacteroidetes, Gemmatimonadetes, Actinobacteria, Firmicutes, Acidobacteria, Chloroflexi, Planctomycetes, Thaumarchaeota and Verrucomicrobia.
Verbatim
e0“Proteobacteria, Bacteroidetes, Gemmatimonadetes, Actinobacteria, Firmicutes, Acidobacteria, Chloroflexi, Planctomycetes, Thaumarchaeota, Verrucomicrobia, and the other bacteria were the major bacterial phyla in the rhizosphere soil of delayed cultivation grapes”
Claim · model-written summary
Small bacterial fertilizer addition under mild stress improved microbial diversity and richness at fruit expansion.
- Taxon
- Grapest0
- Organ / stage
- fruit expansion periode0
- Treatment
- a small amount of bacterial fertilizere0
- Outcome
- diversity and richness of soil microorganismse0
- Direction
- improvee0
Not reportedComparator
Verbatim
e0“adding a small amount of bacterial fertilizer under the mild water stress treatment can not only improve the diversity and richness of soil microorganisms during the fruit expansion period”
t0“Grapes”
Claim · model-written summary
Small bacterial fertilizer addition under mild stress saved water relative to traditional irrigation.
Verbatim
e0“adding a small amount of bacterial fertilizer under the mild water stress treatment can not only improve the diversity and richness of soil microorganisms during the fruit expansion period, but also significantly save water resources compared with the traditional irrigation regimes”
t0“Grapes”
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See all 5 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.