Abstract
: Soil contamination by total petroleum hydrocarbons (TPH) poses a major risk to soil health and crop productivity. This study aims to investigate the effects of TPH on soil properties and rice growth factors, as well as the potential of sodium persulfate (SP) to mitigate negative impacts. The study includes four treatments: control (no SP or TPH), SP (0.0, 1.50 and 3.0%), TPH (TPH-contaminated soil, 4.0%, 6.0%, and 8.0%), and SP +TPH (SP and TPH levels). Results show that TPH contamination led to reductions in pH, organic matter, nutrient availability, root and shoot growth, chlorophyll content, plant height, grain and biomass yield. SP facilitates the restoration of soil physicochemical properties, mitigates toxicity, and enhances plant growth conditions by promoting both chemical oxidation and microbial degradation of TPH contaminants. Higher doses of SP are required to counteract higher TPH levels. The findings suggest that SP can be an effective amendment for remediating TPH-contaminated soils, but dosage and application should be tailored to site-specific conditions. This study highlights the potential of SP for sustainable management of TPH-contaminated agricultural land, but further work is needed to fully understand its impact on different plant species and to optimize remediation strategies for specific site conditions.
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Claims 7
Claim · model-written summary
TPH contamination reduced soil pH, organic matter and nutrient availability.
- Taxon
- rice
Oryza sativat0 - Treatment
- TPH contaminatione0
- Outcome
- pH, organic matter, nutrient availabilitye0
- Direction
- reductionse0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“TPH contamination led to reductions in pH, organic matter, nutrient availability, root and shoot growth, chlorophyll content, plant height, grain and biomass yield.”
e1“control (no SP or TPH)”
Claim · model-written summary
TPH contamination reduced rice root and shoot growth and plant height.
- Taxon
- riceOryza sativat0
- Treatment
- TPH contaminatione0
- Outcome
- root and shoot growthe0
- Direction
- reductionse0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“TPH contamination led to reductions in pH, organic matter, nutrient availability, root and shoot growth, chlorophyll content, plant height, grain and biomass yield.”
e1“control (no SP or TPH)”
Claim · model-written summary
TPH contamination reduced rice chlorophyll content.
- Taxon
- riceOryza sativat0
- Treatment
- TPH contaminatione0
- Outcome
- chlorophyll contente0
- Direction
- reductionse0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“TPH contamination led to reductions in pH, organic matter, nutrient availability, root and shoot growth, chlorophyll content, plant height, grain and biomass yield.”
e1“control (no SP or TPH)”
Claim · model-written summary
TPH contamination reduced rice grain and biomass yield.
- Taxon
- riceOryza sativat0
- Treatment
- TPH contaminatione0
- Outcome
- grain and biomass yielde0
- Direction
- reductionse0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“TPH contamination led to reductions in pH, organic matter, nutrient availability, root and shoot growth, chlorophyll content, plant height, grain and biomass yield.”
e1“control (no SP or TPH)”
Claim · model-written summary
Persulfate restored soil physicochemical properties and enhanced plant growth conditions.
- Taxon
- riceOryza sativat0
- Treatment
- SPe0
- Outcome
- plant growth conditionse0
- Direction
- enhancese0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“SP facilitates the restoration of soil physicochemical properties, mitigates toxicity, and enhances plant growth conditions by promoting both chemical oxidation and microbial degradation of TPH contaminants.”
e1“control (no SP or TPH)”
Claim · model-written summary
Higher TPH levels require higher SP doses.
- Taxon
- riceOryza sativat0
- Treatment
- TPHe0
- Outcome
- doses of SPe0
- Direction
- Highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Higher doses of SP are required to counteract higher TPH levels.”
Claim · model-written summary
SP dosage should be tailored to site-specific conditions for remediation.
- Taxon
- riceOryza sativat0
- Outcome
- dosage and application should be tailored to site-specific conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“SP can be an effective amendment for remediating TPH-contaminated soils, but dosage and application should be tailored to site-specific conditions.”
The same questions in other papers
sodium atom · growth · Oryza sativa (rice)Positive and negative results
4 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
4 papers more in this group
See all 8 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.