Abstract
BACKGROUND: The reduction in diversity of the soil microbial community causes the disorder of continuous cropping. The aim of this study was to determine the effects of applying Trichoderma harzianum SQR-T037 bio-organic fertiliser (BIO) on the microbial community in continuously cropped cucumber soil. Four treatments were set: (1) control, where neither seedling nursery soil (N) nor transplanted soil (T) was amended with BIO; (2) N treatment, where nursery soil was amended with BIO (1% w/w) but transplanted soil was not; (3) N + T treatment, where BIO was added to both nursery soil (1% w/w) and transplanted soil (0.5% w/w); (4) uncropped soil, where soil was left uncropped consistently. RESULTS: A disease index of 72.2% was found for the control treatment, while the N and N + T treatments had disease indices of only 25 and 15% respectively. Analysis of the denaturing gradient gel electrophoresis (DGGE) profiles showed that the bacterial communities of the N and N + T treatments were similar to those of the uncropped soil but distinct from those of the control soil. The fungal communities of the N and N + T treatments differed from those of both the uncropped soil and the control. CONCLUSION: Addition of BIO to both the nursery soil and the transplanted soil can diversify the microbial community in continuously cropped cucumber soil and thus effectively control Fusarium wilt of cucumber plants.
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Claims 5
Claim · model-written summary
Nursery soil amendment lowered the disease index to 25% versus 72.2% control.
- Taxon
- cucumber
Cucumis sativust0 - Treatment
- Ne0
- Outcome
- disease indexe0
- Direction
- onlye0
- Value
- 25e0
- Qualifier
- 72.2%e0
- Comparator
- control treatmente0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A disease index of 72.2% was found for the control treatment, while the N and N + T treatments had disease indices of only 25 and 15% respectively.”
t0“cucumber”
Claim · model-written summary
Nursery and transplanted soil amendment lowered the disease index to 15%.
- Taxon
- cucumberCucumis sativust0
- Treatment
- N + Te0
- Outcome
- disease indicese0
- Direction
- onlye0
- Value
- 15%e0
- Qualifier
- 72.2%e0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A disease index of 72.2% was found for the control treatment, while the N and N + T treatments had disease indices of only 25 and 15% respectively.”
t0“cucumber”
Claim · model-written summary
Amended soils had bacterial communities similar to uncropped soil but distinct from control.
- Taxon
- cucumberCucumis sativust0
- Outcome
- bacterial communitiese0
- Comparator
- uncropped soile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bacterial communities of the N and N + T treatments were similar to those of the uncropped soil but distinct from those of the control soil.”
t0“cucumber”
Claim · model-written summary
Amended soils had fungal communities different from uncropped and control soils.
- Taxon
- cucumberCucumis sativust0
- Outcome
- fungal communitiese0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fungal communities of the N and N + T treatments differed from those of both the uncropped soil and the control.”
t0“cucumber”
Claim · model-written summary
Authors conclude amendment of nursery and transplant soils diversifies the microbial community and controls wilt.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Addition of BIO to both the nursery soil and the transplanted soile0
- Outcome
- control Fusarium wilte0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of BIO to both the nursery soil and the transplanted soil can diversify the microbial community in continuously cropped cucumber soil and thus effectively control Fusarium wilt of cucumber plants.”
t0“cucumber”
The same questions in other papers
nitrogen · disease · Cucumis sativus (cucumber)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
2 papers more in this group
See all 6 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.