Abstract
An investigation was made of the effects of land utilization of sewage sludge compost on growth and heavy metal accumulation in tall fescue(Festuca arundinacea Schreb) and marigold(Tagetes erecta) in the pot scale experiments.The results show that sewage sludge compost significantly increases the level of Zn,Cu,Pb in the soil.The plant biomass,height,absorption of total nitrogen and phosphorus increase gradually with sludge compost application ratios of 0~10% in Festuca arundinacea Schreb or 0~5% ratios in Tagetes erecta.The enrichment of heavy metals in both plants decrease in an order: ZnCuCr,NiCd,Pb.And Zn,Cu,Cr,Ni enrich more significantly in Festuca arundinacea Schreb than Tagetes erecta.In a word,the highest elimination of heavy metals in mixed soils,especially for Zn and Cu,is obtained at 10% or 5% sludge compost ratio for Festuca arundinacea Schreb or Tagetes erecta,respectively.
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Claims 9
Claim · model-written summary
Sewage sludge compost significantly increases Zn, Cu and Pb levels in the soil
- Taxon
- tall fescue(Festuca arundinacea Schreb) and marigold(Tagetes erecta)
Lolium arundinaceum
Tagetes erectae1 - Treatment
- sewage sludge composte2
- Outcome
- the level of Zn,Cu,Pb in the soile2
- Direction
- increasese2
- Setting
- pot scale experimentse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“tall fescue(Festuca arundinacea Schreb) and marigold(Tagetes erecta) in the pot scale experiments”
e2“The results show that sewage sludge compost significantly increases the level of Zn,Cu,Pb in the soil”
Claim · model-written summary
Biomass and height of Festuca arundinacea increase gradually with sludge compost application ratios of 0~10%
- Taxon
- Festuca arundinacea SchrebLolium arundinaceume3
- Treatment
- sludge compost application ratiose3
- Outcome
- biomass,heighte3
- Direction
- increase graduallye3
- Qualifier
- 0~10%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The plant biomass,height,absorption of total nitrogen and phosphorus increase gradually with sludge compost application ratios of 0~10% in Festuca arundinacea Schreb or 0~5% ratios in Tagetes erecta”
Claim · model-written summary
Total nitrogen and phosphorus absorption of Festuca arundinacea increase gradually with sludge compost application ratios of 0~10%
- Taxon
- Festuca arundinacea SchrebLolium arundinaceume3
- Treatment
- sludge compost application ratiose3
- Outcome
- absorption of total nitrogen and phosphoruse3
- Direction
- increase graduallye3
- Qualifier
- 0~10%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The plant biomass,height,absorption of total nitrogen and phosphorus increase gradually with sludge compost application ratios of 0~10% in Festuca arundinacea Schreb or 0~5% ratios in Tagetes erecta”
Claim · model-written summary
Biomass and height of Tagetes erecta increase gradually with sludge compost application ratios of 0~5%
- Taxon
- Tagetes erectaTagetes erectae3
- Treatment
- sludge compost application ratiose3
- Outcome
- biomass,heighte3
- Direction
- increase graduallye3
- Qualifier
- 0~5%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The plant biomass,height,absorption of total nitrogen and phosphorus increase gradually with sludge compost application ratios of 0~10% in Festuca arundinacea Schreb or 0~5% ratios in Tagetes erecta”
Claim · model-written summary
Total nitrogen and phosphorus absorption of Tagetes erecta increase gradually with sludge compost application ratios of 0~5%
- Taxon
- Tagetes erectaTagetes erectae3
- Treatment
- sludge compost application ratiose3
- Outcome
- absorption of total nitrogen and phosphoruse3
- Direction
- increase graduallye3
- Qualifier
- 0~5%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The plant biomass,height,absorption of total nitrogen and phosphorus increase gradually with sludge compost application ratios of 0~10% in Festuca arundinacea Schreb or 0~5% ratios in Tagetes erecta”
Claim · model-written summary
Heavy metal enrichment in both plants decreases in the order Zn, Cu, Cr, Ni, Cd, Pb
- Taxon
- tall fescue(Festuca arundinacea Schreb) and marigold(Tagetes erecta)Lolium arundinaceumTagetes erectae1
- Outcome
- enrichment of heavy metalse4
- Direction
- decreasee4
- Qualifier
- in an order: ZnCuCr,NiCd,Pbe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“tall fescue(Festuca arundinacea Schreb) and marigold(Tagetes erecta) in the pot scale experiments”
e4“The enrichment of heavy metals in both plants decrease in an order: ZnCuCr,NiCd,Pb”
Claim · model-written summary
Zn, Cu, Cr and Ni enrich more significantly in Festuca arundinacea than in Tagetes erecta
- Taxon
- Festuca arundinacea SchrebLolium arundinaceume5
- Outcome
- Zn,Cu,Cr,Ni enriche5
- Direction
- more significantlye5
- Comparator
- Tagetes erectae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“And Zn,Cu,Cr,Ni enrich more significantly in Festuca arundinacea Schreb than Tagetes erecta”
Claim · model-written summary
The highest elimination of heavy metals in Festuca arundinacea is obtained at a 10% sludge compost ratio
- Taxon
- Festuca arundinacea SchrebLolium arundinaceume6
- Treatment
- sludge compost ratioe6
- Outcome
- elimination of heavy metalse6
- Direction
- higheste6
- Value
- 10%e6
- Qualifier
- especially for Zn and Cue6
- Setting
- mixed soilse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the highest elimination of heavy metals in mixed soils,especially for Zn and Cu,is obtained at 10% or 5% sludge compost ratio for Festuca arundinacea Schreb or Tagetes erecta,respectively”
Claim · model-written summary
The highest elimination of heavy metals in Tagetes erecta is obtained at a 5% sludge compost ratio
- Taxon
- Tagetes erectaTagetes erectae6
- Treatment
- sludge compost ratioe6
- Outcome
- elimination of heavy metalse6
- Direction
- higheste6
- Value
- 5%e6
- Qualifier
- especially for Zn and Cue6
- Setting
- mixed soilse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the highest elimination of heavy metals in mixed soils,especially for Zn and Cu,is obtained at 10% or 5% sludge compost ratio for Festuca arundinacea Schreb or Tagetes erecta,respectively”
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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.