Abstract
The intensive cropping of red pepper (Capsicum annuum L.) negatively affects the soil environment and reduces crop yield. The red pepper plant's rhizospheric bacterial communities under different cropping methods (intensive cropping or crop rotation) were investigated over three years (2010 to 2012). The red pepper yield and bacterial communities were also investigated under agrochemical treatment or microbial agent treatment against Phytophthora blight disease. Pyrosequencing of 16S rRNA gene amplicon libraries were constructed to characterize the bacterial communities. Bacterial richness and red pepper yield increased 65% and 55%, respectively under the crop rotation method combined with the microbial agent treatment, whereas the intensive cropping method with the agrochemical treatment resulted in low richness and diversity. The dominant bacterial phylogenetic phyla present were Acidobacteria, Proteobacteria, Gemmatimonadetes, Chloroflexi, and Planctomycetes, ranging from 5% to 38% of the sequences. In conclusion, crop rotation and microbial agent has a synergistic positive effect not only on rhizobacterial diversity, but also on red pepper yield.
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Claims 4
Claim · model-written summary
Crop rotation with microbial agent treatment increased bacterial richness by 65%.
- Taxon
- red pepper
Capsicum annuum var. annuume0 - Treatment
- crop rotation method combined with the microbial agent treatmente0
- Outcome
- Bacterial richnesse0
- Direction
- increasede0
- Value
- 65%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterial richness and red pepper yield increased 65% and 55%, respectively under the crop rotation method combined with the microbial agent treatment”
Claim · model-written summary
Crop rotation with microbial agent treatment increased red pepper yield by 55%.
- Taxon
- red pepperCapsicum annuum var. annuume0
- Treatment
- crop rotation method combined with the microbial agent treatmente0
- Outcome
- red pepper yielde0
- Direction
- increasede0
- Value
- 55%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterial richness and red pepper yield increased 65% and 55%, respectively under the crop rotation method combined with the microbial agent treatment”
Claim · model-written summary
Intensive cropping with agrochemical treatment had low bacterial richness and diversity.
- Treatment
- intensive cropping method with the agrochemical treatmente0
- Outcome
- low richness and diversitye0
- Direction
- lowe0
Not reportedTaxon
Verbatim
e0“the intensive cropping method with the agrochemical treatment resulted in low richness and diversity.”
Claim · model-written summary
Five bacterial phyla dominated the red pepper rhizosphere community at 5% to 38% of sequences.
- Outcome
- dominant bacterial phylogenetic phylae0
- Value
- 5% to 38%e0
- Qualifier
- Acidobacteria, Proteobacteria, Gemmatimonadetes, Chloroflexi, and Planctomycetese0
Not reportedTaxon
Verbatim
e0“The dominant bacterial phylogenetic phyla present were Acidobacteria, Proteobacteria, Gemmatimonadetes, Chloroflexi, and Planctomycetes, ranging from 5% to 38% of the sequences.”
The same questions in other papers
rotation · yield · Capsicum annuum (sweet pepper)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
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.