Abstract
Taking the rice/wheat ozone free-air concentration enrichment(O3-FACE) system in Jiangdu County of Jiangsu Province as a platform,this paper studied the effects of elevated atmospheric O3(target at 50% above ambient) on the N,P,and K concentrations in soil and wheat plant during wheat growth season.In the whole growth season of wheat,the concentrations of soil NH4+-N,NO3--N,and available K under elevated O3 decreased by 5.7%,3.6% and 3.0%,respectively,while the soil available P concentration increased by 26.3%(P0.05),compared with those under ambient O3.Under elevated O3,the K concentration in wheat plant at jointing stage increased by 28.4%(P0.01),the plant N concentration at maturing stage decreased,while the P and K concentrations in wheat grain increased by 6.5% and 4.2%,respectively.Our results suggested that elevated atmospheric O3 could promote the N and K uptake by wheat plant in its whole growth period,increase the K and P concentrations in wheat grain,but decrease the N concentration in wheat plant at maturing stage.
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Claims 9
Claim · model-written summary
Elevated ozone decreased soil NH4+-N by 5.7%.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- elevated O3e0
- Outcome
- soil NH4+-Ne0
- Direction
- decreasede0
- Value
- 5.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentrations of soil NH4+-N,NO3--N,and available K under elevated O3 decreased by 5.7%,3.6% and 3.0%,respectively”
t0“soil and wheat plant”
Claim · model-written summary
Elevated ozone decreased NO3--N by 3.6%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentrations of soil NH4+-N,NO3--N,and available K under elevated O3 decreased by 5.7%,3.6% and 3.0%,respectively”
t0“soil and wheat plant”
Claim · model-written summary
Elevated ozone decreased available K by 3.0%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- elevated O3e0
- Outcome
- available Ke0
- Direction
- decreasede0
- Value
- 3.0%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentrations of soil NH4+-N,NO3--N,and available K under elevated O3 decreased by 5.7%,3.6% and 3.0%,respectively”
t0“soil and wheat plant”
Claim · model-written summary
Elevated ozone increased soil available P by 26.3%.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- soil available P concentratione0
- Direction
- increasede0
- Value
- 26.3%e0
- Comparator
- ambient O3e0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil available P concentration increased by 26.3%(P0.05),compared with those under ambient O3”
t0“soil and wheat plant”
Claim · model-written summary
Wheat K concentration at jointing increased by 28.4% under elevated ozone.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- jointing stagee0
- Treatment
- elevated O3e0
- Outcome
- K concentration in wheat plante0
- Direction
- increasede0
- Value
- 28.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under elevated O3,the K concentration in wheat plant at jointing stage increased by 28.4%(P0.01)”
Claim · model-written summary
Wheat plant N concentration at maturity decreased under elevated ozone.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- maturing stagee0
- Outcome
- plant N concentratione0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plant N concentration at maturing stage decreased”
t0“soil and wheat plant”
Claim · model-written summary
Wheat grain P concentration increased by 6.5% under elevated ozone.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- graine0
- Outcome
- P and K concentrations in wheat graine0
- Direction
- increasede0
- Value
- 6.5%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the P and K concentrations in wheat grain increased by 6.5% and 4.2%,respectively”
Claim · model-written summary
Wheat grain K concentration increased by 4.2% under elevated ozone.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- graine0
- Outcome
- K concentrations in wheat graine0
- Direction
- increasede0
- Value
- 4.2%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the P and K concentrations in wheat grain increased by 6.5% and 4.2%,respectively”
Claim · model-written summary
Authors inferred that elevated ozone promoted N and K uptake by wheat during growth.
- Taxon
- wheatTriticum aestivume0
- Treatment
- elevated atmospheric O3e0
- Outcome
- N and K uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“elevated atmospheric O3 could promote the N and K uptake by wheat plant in its whole growth period”
The same questions in other papers
ozone · nutrient: content · Triticum aestivum (wheat)Positive and negative results
4 papers in the same direction as this paper · 11 in the opposite direction
- negative
- negative
- negative
12 papers more in this group
See all 16 papers →ozone · soil: chemistry · Triticum aestivum (wheat)Results agree
2 papers in the same direction as this paper
- no effect
- negative
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.