Abstract
With increasing nitrogen application in soil, the problem of nitrate accumulation in soil and vegetable bodies has become increasingly serious. In this study, Bacillus subtilis (B. subtilis) Strain11 was isolated and studied for its effects in combination with Molybdenum (Mo) on the growth of Chinese cabbage and soil nitrate content. The results showed that the strain effectively increased the growth, height, and moisture content of Chinese cabbage by 27% and 2.5%, respectively, compared to the control. Mo application alone reduced soil nitrate accumulation and increased root length, height, chlorophyll content, and moisture content of Chinese cabbage, with an optimal rate of 0.8–1.2 mg/kg soil. The application of Mo fertilizer in combination with the Bacillus strain was the most effective in increasing plant height and root length of Chinese cabbage, which were 1.49 times and 1.68 times that of the control, respectively. The proportion of dry matter, the average fresh weight, and the dry weight under this treatment were 9.01%, 5.83 g/plant, and 0.53 g/plant, respectively, higher than the rest. At harvest, the highest ammonium-nitrogen content in this treatment group was 8.56 mg/kg, and the soil nitrate reduction reached 40.68%. In conclusion, Mo fertilizer at a rate of 0.8 mg Mo/kg soil, in combination with B. subtilis Strain11, was recommended for the remediation of nitrate-contaminated soils.
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Claims 12
Claim · model-written summary
The B. subtilis Strain11 increased growth, height and moisture content of Chinese cabbage by 27% and 2.5%, respectively, compared with the control.
- Taxon
- Chinese cabbage
Brassica rapa subsp. pekinensise1 - Treatment
- the straine1
- Interactor
- Bacillus subtilis (B. subtilis) Strain11
Bacillus subtilise2symbiont - Outcome
- growth, height, and moisture contente1
- Direction
- increasede1
- Value
- 27% and 2.5%e1
- Qualifier
- respectivelye1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results showed that the strain effectively increased the growth, height, and moisture content of Chinese cabbage by 27% and 2.5%, respectively, compared to the control”
e2“Bacillus subtilis (B. subtilis) Strain11 was isolated and studied for its effects in combination with Molybdenum (Mo)”
Claim · model-written summary
Molybdenum application alone reduced soil nitrate accumulation.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise3
- Treatment
- Mo application alonee3
- Outcome
- soil nitrate accumulatione3
- Direction
- reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Mo application alone reduced soil nitrate accumulation and increased root length, height, chlorophyll content, and moisture content of Chinese cabbage, with an optimal rate of 0.8–1.2 mg/kg soil”
Claim · model-written summary
Molybdenum application alone increased root length, height and chlorophyll content of Chinese cabbage.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise3
- Treatment
- Mo application alonee3
- Outcome
- root length, height, chlorophyll contente3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Mo application alone reduced soil nitrate accumulation and increased root length, height, chlorophyll content, and moisture content of Chinese cabbage, with an optimal rate of 0.8–1.2 mg/kg soil”
Claim · model-written summary
Molybdenum application alone increased moisture content of Chinese cabbage.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise3
- Treatment
- Mo application alonee3
- Outcome
- moisture contente3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Mo application alone reduced soil nitrate accumulation and increased root length, height, chlorophyll content, and moisture content of Chinese cabbage, with an optimal rate of 0.8–1.2 mg/kg soil”
Claim · model-written summary
Mo fertilizer combined with the Bacillus strain increased plant height of Chinese cabbage to 1.49 times the control.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise4
- Treatment
- Mo fertilizer in combination with the Bacillus straine4
- Interactor
- the Bacillus straine4symbiont
- Outcome
- plant heighte4
- Direction
- increasinge4
- Value
- 1.49 timese4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The application of Mo fertilizer in combination with the Bacillus strain was the most effective in increasing plant height and root length of Chinese cabbage, which were 1.49 times and 1.68 times that of the control, respectively”
Claim · model-written summary
Mo fertilizer combined with the Bacillus strain increased root length of Chinese cabbage to 1.68 times the control.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise4
- Treatment
- Mo fertilizer in combination with the Bacillus straine4
- Interactor
- the Bacillus straine4symbiont
- Outcome
- root lengthe4
- Direction
- increasinge4
- Value
- 1.68 timese4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The application of Mo fertilizer in combination with the Bacillus strain was the most effective in increasing plant height and root length of Chinese cabbage, which were 1.49 times and 1.68 times that of the control, respectively”
Claim · model-written summary
Mo fertilizer combined with the Bacillus strain gave a dry matter proportion of 9.01%, higher than the rest.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise4
- Treatment
- Mo fertilizer in combination with the Bacillus straine4
- Interactor
- the Bacillus straine4symbiont
- Outcome
- proportion of dry mattere5
- Direction
- highere5
- Value
- 9.01%e5
- Comparator
- the reste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The application of Mo fertilizer in combination with the Bacillus strain was the most effective in increasing plant height and root length of Chinese cabbage, which were 1.49 times and 1.68 times that of the control, respectively”
e5“The proportion of dry matter, the average fresh weight, and the dry weight under this treatment were 9.01%, 5.83 g/plant, and 0.53 g/plant, respectively, higher than the rest”
Claim · model-written summary
Mo fertilizer combined with the Bacillus strain gave an average fresh weight of 5.83 g/plant, higher than the rest.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise4
- Treatment
- Mo fertilizer in combination with the Bacillus straine4
- Interactor
- the Bacillus straine4symbiont
- Outcome
- average fresh weighte5
- Direction
- highere5
- Value
- 5.83 g/plante5
- Comparator
- the reste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The application of Mo fertilizer in combination with the Bacillus strain was the most effective in increasing plant height and root length of Chinese cabbage, which were 1.49 times and 1.68 times that of the control, respectively”
e5“The proportion of dry matter, the average fresh weight, and the dry weight under this treatment were 9.01%, 5.83 g/plant, and 0.53 g/plant, respectively, higher than the rest”
Claim · model-written summary
Mo fertilizer combined with the Bacillus strain gave a dry weight of 0.53 g/plant, higher than the rest.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise4
- Treatment
- Mo fertilizer in combination with the Bacillus straine4
- Interactor
- the Bacillus straine4symbiont
- Outcome
- dry weighte5
- Direction
- highere5
- Value
- 0.53 g/plante5
- Comparator
- the reste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The application of Mo fertilizer in combination with the Bacillus strain was the most effective in increasing plant height and root length of Chinese cabbage, which were 1.49 times and 1.68 times that of the control, respectively”
e5“The proportion of dry matter, the average fresh weight, and the dry weight under this treatment were 9.01%, 5.83 g/plant, and 0.53 g/plant, respectively, higher than the rest”
Claim · model-written summary
At harvest, the treatment with Mo fertilizer and the Bacillus strain had the highest soil ammonium-nitrogen content, 8.56 mg/kg.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Outcome
- ammonium-nitrogen contente6
- Direction
- higheste6
- Value
- 8.56 mg/kge6
- Setting
- At harveste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“At harvest, the highest ammonium-nitrogen content in this treatment group was 8.56 mg/kg, and the soil nitrate reduction reached 40.68%”
t0“Growth of Chinese cabbage”
Claim · model-written summary
The Mo fertilizer and Bacillus strain treatment reduced soil nitrate by 40.68%.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Outcome
- soil nitrate reductione6
- Direction
- reachede6
- Value
- 40.68%e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“At harvest, the highest ammonium-nitrogen content in this treatment group was 8.56 mg/kg, and the soil nitrate reduction reached 40.68%”
t0“Growth of Chinese cabbage”
Claim · model-written summary
Mo fertilizer at 0.8 mg Mo/kg soil combined with B. subtilis Strain11 is recommended for remediation of nitrate-contaminated soils.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Treatment
- Mo fertilizer at a rate of 0.8 mg Mo/kg soile7
- Interactor
- B. subtilis Strain11Bacillus subtilise7symbiont
- Outcome
- remediation of nitrate-contaminated soilse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Mo fertilizer at a rate of 0.8 mg Mo/kg soil, in combination with B. subtilis Strain11, was recommended for the remediation of nitrate-contaminated soils”
t0“Growth of Chinese cabbage”
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