Abstract
Abstract Greenhouse and field experiments were conducted to determine the influence of nitrogen (N) fertilization and DTPA‐extractable soil zinc (Zn) on Zn concentration in wheat (Triticum aestivum L., cv. Pioneer 2375) grain. Application of zinc sulfate (ZnSO4) in the range of 0 to 8 mg Zn kg‐1 increased linearly DTPA‐extractable Zn in an incubated calcareous soil from 0.3 to 5.0 mg kg‐1. Application of these rates of ZnSO4 to the same soil under greenhouse conditions increased Zn concentration of wheat grain from 26 to 101 mg kg‐1. The influence of 134 kg urea‐N ha‐1 on Zn concentration in wheat grain at eight field sites, with DTPA‐extractable soil Zn levels ranging from 0.3 to 4.9 mg kg‐1, was studied. Nitrogen fertilizer increased wheat‐grain yields in four of the eight experiments but had little effect on grain‐Zn concentration. Grain‐Zn concentration ranged from 31 to 45 mg kg‐1 in N‐fertilized plots at the various sites and was related (r=0.74*) to DTPA‐extractable soil Zn.
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Claims 6
Claim · model-written summary
Zinc sulfate increased soil extractable zinc linearly from 0.3 to 5.0 mg kg‐1.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- zinc sulfate (ZnSO4) in the range of 0 to 8 mg Zn kg‐1e0
- Outcome
- DTPA‐extractable Zn in an incubated calcareous soile0
- Direction
- increased linearlye0
- Value
- 0.3 to 5.0 mg kg‐1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of zinc sulfate (ZnSO4) in the range of 0 to 8 mg Zn kg‐1 increased linearly DTPA‐extractable Zn in an incubated calcareous soil from 0.3 to 5.0 mg kg‐1.”
t0“wheat grain”
Claim · model-written summary
Zinc sulfate increased wheat grain zinc from 26 to 101 mg kg‐1 in greenhouse soil.
- Taxon
- wheatTriticum aestivume0
- Treatment
- ZnSO4e0
- Outcome
- Zn concentration of wheat graine0
- Direction
- increasede0
- Value
- 26 to 101 mg kg‐1e0
- Setting
- greenhouse conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of these rates of ZnSO4 to the same soil under greenhouse conditions increased Zn concentration of wheat grain from 26 to 101 mg kg‐1.”
Claim · model-written summary
Nitrogen fertilizer increased wheat grain yield in four of eight field experiments.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Nitrogen fertilizere0
- Outcome
- wheat‐grain yieldse0
- Direction
- increasede0
- Qualifier
- four of the eight experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilizer increased wheat‐grain yields in four of the eight experiments but had little effect on grain‐Zn concentration.”
Claim · model-written summary
Nitrogen fertilizer had little effect on wheat grain zinc concentration.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Nitrogen fertilizere0
- Outcome
- grain‐Zn concentratione0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilizer increased wheat‐grain yields in four of the eight experiments but had little effect on grain‐Zn concentration.”
Claim · model-written summary
Nitrogen-fertilized grain zinc ranged from 31 to 45 mg kg‐1 across sites.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- N‐fertilized plotse0
- Outcome
- Grain‐Zn concentratione0
- Value
- 31 to 45 mg kg‐1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain‐Zn concentration ranged from 31 to 45 mg kg‐1 in N‐fertilized plots at the various sites and was related (r=0.74*) to DTPA‐extractable soil Zn.”
t0“wheat grain”
Claim · model-written summary
Wheat grain zinc was associated with extractable soil zinc with r=0.74*.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- Grain‐Zn concentratione0
- Value
- r=0.74*e0
- Setting
- DTPA‐extractable soil Zne0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain‐Zn concentration ranged from 31 to 45 mg kg‐1 in N‐fertilized plots at the various sites and was related (r=0.74*) to DTPA‐extractable soil Zn.”
t0“wheat grain”
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