Abstract
Abstract Phosphorous (P) and zinc (Zn) are plant nutrients that interact with each other in soil–plant systems. Such interactions may cause deficiency of one of the nutrients interacting with each other if interactions are antagonistic. In the present trial, a field experiment was conducted to investigate the interactive effect of Zn (0 and 16 kg ha −1 ) and P (0 and 60 kg ha −1 ) on growth, yield and grain Zn concentration of two maize ( Zea mays L.) genotypes, i.e ., Neelam (local) and DK‐6142 (hybrid). Growth and yield of both maize genotypes were increased by the application of Zn and P treatments compared with control, but Zn+P was more effective than their sole application. When compared to control, combined application of Zn+P increased grain Zn and P concentrations by 52% and 32%, respectively, averaged for the two genotypes. Single application of P decreased grain Zn concentration by 10% over control. Application of P and Zn particularly in combination decreased the grain [phytate] : [Zn] ratio and increased the estimated human Zn bioavailability in grains based on a trivariate model of Zn absorption in both maize genotypes. Conclusively, combined Zn+P application appeared more suitable for enhancing grain yield and agronomic Zn biofortification in maize grains. However, Zn fertilization aiming at increasing grain yield and grain Zn concentration should consider the genotypic variations and P rate.
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Claims 8
Claim · model-written summary
Zn and P treatments increased maize growth and yield relative to control, with combined treatment more effective than either alone.
- Material
- both maize genotypese0
- Treatment
- Zn and P treatmentse0
- Outcome
- Growth and yielde0
- Direction
- increasede0
- Qualifier
- Zn+P was more effective than their sole applicatione0
- Comparator
- controle0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth and yield of both maize genotypes were increased by the application of Zn and P treatments compared with control, but Zn+P was more effective than their sole application.”
Claim · model-written summary
Combined Zn and P increased grain Zn concentration by 52% relative to control, averaged across two genotypes.
- Treatment
- combined application of Zn+Pe0
- Outcome
- grain Zne0
- Direction
- increasede0
- Value
- 52%e0
- Qualifier
- averaged for the two genotypese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When compared to control, combined application of Zn+P increased grain Zn and P concentrations by 52% and 32%, respectively, averaged for the two genotypes.”
e1“two maize ( Zea mays L.) genotypes”
Claim · model-written summary
Combined Zn and P increased grain P concentration by 32% relative to control, averaged across two genotypes.
- Treatment
- combined application of Zn+Pe0
- Outcome
- P concentrationse0
- Direction
- increasede0
- Value
- 32%e0
- Qualifier
- averaged for the two genotypese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When compared to control, combined application of Zn+P increased grain Zn and P concentrations by 52% and 32%, respectively, averaged for the two genotypes.”
e1“two maize ( Zea mays L.) genotypes”
Claim · model-written summary
P alone decreased grain Zn concentration by 10% relative to control.
- Treatment
- Single application of Pe0
- Outcome
- grain Zn concentratione0
- Direction
- decreasede0
- Value
- 10%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Single application of P decreased grain Zn concentration by 10% over control.”
e1“two maize ( Zea mays L.) genotypes”
Claim · model-written summary
P and Zn, especially combined, decreased the grain phytate to Zn ratio in both maize genotypes.
- Treatment
- Application of P and Zn particularly in combinatione0
- Outcome
- grain [phytate] : [Zn] ratioe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of P and Zn particularly in combination decreased the grain [phytate] : [Zn] ratio and increased the estimated human Zn bioavailability in grains based on a trivariate model of Zn absorption in both maize genotypes.”
Claim · model-written summary
P and Zn, especially combined, increased modeled human Zn bioavailability in maize grain.
- Treatment
- Application of P and Zn particularly in combinatione0
- Outcome
- estimated human Zn bioavailability in grainse0
- Direction
- increasede0
- Qualifier
- based on a trivariate model of Zn absorptione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of P and Zn particularly in combination decreased the grain [phytate] : [Zn] ratio and increased the estimated human Zn bioavailability in grains based on a trivariate model of Zn absorption in both maize genotypes.”
Claim · model-written summary
The authors concluded combined Zn and P was more suitable for grain yield and Zn biofortification.
- Outcome
- combined Zn+P applicatione0
- Qualifier
- enhancing grain yield and agronomic Zn biofortificatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined Zn+P application appeared more suitable for enhancing grain yield and agronomic Zn biofortification in maize grains.”
Claim · model-written summary
The authors advised that Zn fertilization for yield and grain Zn should consider genotype variation and P rate.
- Outcome
- Zn fertilization aiming at increasing grain yield and grain Zn concentration should consider the genotypic variations and P ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn fertilization aiming at increasing grain yield and grain Zn concentration should consider the genotypic variations and P rate.”
e1“maize grains”