Abstract
Abstract The accumulation of heavy metals like cadmium (Cd) and metalloids like arsenic (As) in plants can do harm to human health through the food chain, especially through the rice ( Oryza sativa L.). To solve this problem, this study researched the application of magnesium slag (MS) and polyaspartic acid (PASP), which could accelerate rice growth and improve yield, increase soil pH and activate rice enzyme activity as well as reduce the bioavailability of Cd and As in the soil. After these two different treatments, rice yield increased by 17.0% and 18.9%, respectively. Meanwhile, the bioavailable As decreased by 49.1% and 42.5%, while the bioavailable Cd reduced by 72.6% and 44.3%. Besides, the Cd content in rice grains reduced by 77.7% and 17.3%, respectively, after two different treatments. In the MS treatment, the As content in rice grains was reduced by 21.8%, but showed no significant response to the other treatment. The contents of bioavailable Cd and As (determined by one‐step extraction) in soil were decreased by MS and PASP, which was favourable for the reduction of Cd and As accumulation in rice. The health risk assessment showed that the application of passivators can effectively reduce the risk of carcinogenesis, but it was still unacceptable. The application dose of MS and PASP still needs further exploration.
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Claims 11
Claim · model-written summary
MS increased rice yield by 17.0%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After these two different treatments, rice yield increased by 17.0% and 18.9%, respectively.”
t0“Magnesium slag”
Claim · model-written summary
PASP increased rice yield by 18.9%.
- Taxon
- rice
Oryza sativae0 - Treatment
- polyaspartic acid (PASP)t0
- Outcome
- rice yielde0
- Direction
- increasede0
- Value
- 18.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After these two different treatments, rice yield increased by 17.0% and 18.9%, respectively.”
t0“magnesium slag (MS) and polyaspartic acid (PASP), which could accelerate rice growth”
Claim · model-written summary
MS reduced bioavailable soil As by 49.1%.
- Taxon
- riceOryza sativat0
- Treatment
- magnesium slag (MS)t0
- Outcome
- bioavailable Ase0
- Direction
- decreasede0
- Value
- 49.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bioavailable As decreased by 49.1% and 42.5%”
t0“magnesium slag (MS) and polyaspartic acid (PASP), which could accelerate rice growth”
Claim · model-written summary
PASP reduced bioavailable soil As by 42.5%.
- Taxon
- riceOryza sativat0
- Treatment
- polyaspartic acid (PASP)t0
- Outcome
- bioavailable Ase0
- Direction
- decreasede0
- Value
- 42.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bioavailable As decreased by 49.1% and 42.5%”
t0“magnesium slag (MS) and polyaspartic acid (PASP), which could accelerate rice growth”
Claim · model-written summary
MS reduced bioavailable soil Cd by 72.6%.
- Taxon
- riceOryza sativat0
- Treatment
- magnesium slag (MS)t0
- Outcome
- bioavailable Cde0
- Direction
- reducede0
- Value
- 72.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bioavailable Cd reduced by 72.6% and 44.3%”
t0“magnesium slag (MS) and polyaspartic acid (PASP), which could accelerate rice growth”
Claim · model-written summary
PASP reduced bioavailable soil Cd by 44.3%.
- Taxon
- riceOryza sativat0
- Treatment
- polyaspartic acid (PASP)t0
- Outcome
- bioavailable Cde0
- Direction
- reducede0
- Value
- 44.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bioavailable Cd reduced by 72.6% and 44.3%”
t0“magnesium slag (MS) and polyaspartic acid (PASP), which could accelerate rice growth”
Claim · model-written summary
MS reduced Cd in rice grains by 77.7%.
- Taxon
- riceOryza sativae0
- Treatment
- magnesium slag (MS)t0
- Outcome
- Cd content in rice grainse0
- Direction
- reducede0
- Value
- 77.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Cd content in rice grains reduced by 77.7% and 17.3%”
t0“magnesium slag (MS) and polyaspartic acid (PASP), which could accelerate rice growth”
Claim · model-written summary
PASP reduced Cd in rice grains by 17.3%.
- Taxon
- riceOryza sativae0
- Treatment
- polyaspartic acid (PASP)t0
- Outcome
- Cd content in rice grainse0
- Direction
- reducede0
- Value
- 17.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Cd content in rice grains reduced by 77.7% and 17.3%”
t0“magnesium slag (MS) and polyaspartic acid (PASP), which could accelerate rice growth”
Claim · model-written summary
MS reduced As content in rice grains by 21.8%.
- Taxon
- riceOryza sativae0
- Treatment
- MS treatmente0
- Outcome
- As content in rice grainse0
- Direction
- reducede0
- Value
- 21.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the MS treatment, the As content in rice grains was reduced by 21.8%”
Claim · model-written summary
PASP produced no significant response in rice grain As content.
- Taxon
- riceOryza sativae0
- Treatment
- the other treatmente0
- Outcome
- As content in rice grainse0
- Direction
- no significant responsee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the As content in rice grains was reduced by 21.8%, but showed no significant response to the other treatment.”
Claim · model-written summary
Passivator application reduced carcinogenesis risk, although risk remained unacceptable.
- Taxon
- riceOryza sativat0
- Treatment
- application of passivatorse0
- Outcome
- risk of carcinogenesise0
- Direction
- reducee0
- Qualifier
- still unacceptablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of passivators can effectively reduce the risk of carcinogenesis, but it was still unacceptable.”
t0“rice ( Oryza sativa L.)”
The same questions in other papers
magnesium atom · yield · Oryza sativa (rice)Results differ
38 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- negative
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See all 43 papers →magnesium atom · nutrient: content · Oryza sativa (rice)Positive and negative results
19 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
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See all 25 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.