Abstract
Pot experiments were conducted to study the effects of rice straw (RS), rice straw ash (RSA), and bone charcoal (BC) on the bioavailability of 15 rare earth elements (REEs) in soil and the absorption and accumulation of REES by rice. Adding RSA and BC to REE-contaminated soil remarkably increased the biomass and yield of rice, and the addition of RS remarkably inhibited the growth of rice. Compared with the control check (CK), the total REE concentration in the soil solution at the tillering stage, heading stage, and maturity stage was significantly increased by adding RS, and the total REE concentration in the soil solution was remarkably decreased by adding RSA and BC. The concentration of 15 REEs in the roots, shoots of rice, and brown rice were remarkably decreased via RSA addition. The concentration of total REEs in rice roots, shoots, and grains decreased 79.1%, 76%, and 18.3%, respectively, and the concentration of total REEs in the roots and shoots of rice decreased 19.9% and 67.2%, respectively via RSA addition. However, there was no noticeable effect on the concentration of total REEs in brown rice. So BC and RSA are suitable to be added to REE-contaminated soil, but RS is not.
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Claims 13
Claim · model-written summary
RSA increased rice biomass and yield.
- Taxon
- Rice
Oryza sativat0 - Treatment
- RSAe0
- Outcome
- biomass and yield of ricee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adding RSA and BC to REE-contaminated soil remarkably increased the biomass and yield of rice”
t0“Rice Plants”
Claim · model-written summary
BC increased rice biomass and yield.
- Taxon
- RiceOryza sativat0
- Treatment
- BCe0
- Outcome
- biomass and yield of ricee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adding RSA and BC to REE-contaminated soil remarkably increased the biomass and yield of rice”
t0“Rice Plants”
Claim · model-written summary
Rice straw inhibited rice growth.
- Taxon
- RiceOryza sativat0
- Treatment
- RSe0
- Outcome
- growth of ricee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the addition of RS remarkably inhibited the growth of rice”
t0“Rice Plants”
Claim · model-written summary
Rice straw increased total rare earth element concentration in soil solution.
- Taxon
- RiceOryza sativat0
- Organ / stage
- tillering stage, heading stage, and maturity stagee0
- Treatment
- RSe0
- Outcome
- total REE concentration in the soil solutione0
- Direction
- increasede0
- Comparator
- control check (CK)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the control check (CK), the total REE concentration in the soil solution at the tillering stage, heading stage, and maturity stage was significantly increased by adding RS”
t0“Rice Plants”
Claim · model-written summary
RSA decreased total rare earth element concentration in soil solution.
- Taxon
- RiceOryza sativat0
- Treatment
- RSAe0
- Outcome
- total REE concentration in the soil solutione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total REE concentration in the soil solution was remarkably decreased by adding RSA and BC”
t0“Rice Plants”
Claim · model-written summary
BC decreased total rare earth element concentration in soil solution.
- Taxon
- RiceOryza sativat0
- Treatment
- BCe0
- Outcome
- total REE concentration in the soil solutione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total REE concentration in the soil solution was remarkably decreased by adding RSA and BC”
t0“Rice Plants”
Claim · model-written summary
Rice straw ash decreased concentrations of 15 rare earth elements in rice roots, shoots and brown rice.
- Taxon
- RiceOryza sativat0
- Organ / stage
- roots, shoots of rice, and brown ricee0
- Treatment
- RSA additione0
- Outcome
- concentration of 15 REEse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of 15 REEs in the roots, shoots of rice, and brown rice were remarkably decreased via RSA addition”
t0“Rice Plants”
Claim · model-written summary
Rice straw ash was also reported to decrease total rare earth elements in rice roots by 19.9%.
- Taxon
- RiceOryza sativat0
- Organ / stage
- rootse0
- Treatment
- RSA additione0
- Outcome
- concentration of total REEse0
- Direction
- decreasede0
- Value
- 19.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentration of total REEs in the roots and shoots of rice decreased 19.9% and 67.2%, respectively via RSA addition”
t0“Rice Plants”
Claim · model-written summary
Rice straw ash was also reported to decrease total rare earth elements in rice shoots by 67.2%.
- Taxon
- RiceOryza sativat0
- Organ / stage
- shootse0
- Treatment
- RSA additione0
- Outcome
- concentration of total REEse0
- Direction
- decreasede0
- Value
- 67.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentration of total REEs in the roots and shoots of rice decreased 19.9% and 67.2%, respectively via RSA addition”
t0“Rice Plants”
Claim · model-written summary
The abstract reports no noticeable change in total rare earth elements in brown rice.
- Taxon
- RiceOryza sativat0
- Outcome
- concentration of total REEs in brown ricee0
- Direction
- no noticeable effecte0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, there was no noticeable effect on the concentration of total REEs in brown rice”
t0“Rice Plants”
Claim · model-written summary
The authors recommend BC for rare earth element contaminated soil.
- Taxon
- RiceOryza sativat0
- Treatment
- BCe0
- Outcome
- suitable to be added to REE-contaminated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“So BC and RSA are suitable to be added to REE-contaminated soil”
t0“Rice Plants”
Claim · model-written summary
The authors recommend RSA for rare earth element contaminated soil.
- Taxon
- RiceOryza sativat0
- Treatment
- RSAe0
- Outcome
- suitable to be added to REE-contaminated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“So BC and RSA are suitable to be added to REE-contaminated soil”
t0“Rice Plants”
Claim · model-written summary
The authors advise against rice straw in rare earth element contaminated soil.
- Taxon
- RiceOryza sativat0
- Outcome
- RS is note0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but RS is not”
t0“Rice Plants”
The same questions in other papers
charcoal · yield · Oryza sativa (rice)Results differ
10 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
9 papers more in this group
See all 13 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.