Abstract
High Resolution Image Download MS PowerPoint Slide Iron-EDTA becomes unstable above pH 6.5, resulting in competition among metal ions (Fe, Cu, Zn, and Mn) for EDTA and reduced Fe availability. This study examined nutrient precipitation dynamics and interactions between chelated and sulfate forms of Zn, Mn, and Cu with Fe-EDTA in fava bean and maize under increasing alkalinity (0, 5, and 15 mM NaHCO 3 ). In fava bean, chelated micronutrients significantly increased shoot Fe, P, and Zn concentrations and improved metabolic activity and oxidative stress tolerance. Maize was more sensitive to alkalinity but showed similar nutrient responses at 5 mM NaHCO 3 . Speciation modeling (MINEQL+5.0) indicated Fe displacement from Fe-EDTA at high pH, forming insoluble FePO 4 and Fe(OH) 3 . Incubation studies demonstrated that Fe-HBED maintained higher Fe, Ca, and P solubility than Fe-EDTA and Fe-DTPA under alkaline conditions. SEM-EDX analysis linked stable Fe chelates to lower P in precipitates. Results highlight Fe-HBED’s effectiveness in ensuring Fe and P availability under alkalinity.
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Claims 7
Claim · model-written summary
Chelated micronutrients significantly increased shoot Fe, P and Zn concentrations in fava bean.
- Taxon
- fava bean
Vicia fabae1 - Organ / stage
- shoote1
- Treatment
- chelated micronutrientse1
- Outcome
- shoot Fe, P, and Zn concentrationse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In fava bean, chelated micronutrients significantly increased shoot Fe, P, and Zn concentrations and improved metabolic activity and oxidative stress tolerance”
Claim · model-written summary
Chelated micronutrients improved metabolic activity and oxidative stress tolerance in fava bean.
- Taxon
- fava beanVicia fabae1
- Treatment
- chelated micronutrientse1
- Outcome
- metabolic activity and oxidative stress tolerancee1
- Direction
- improvede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In fava bean, chelated micronutrients significantly increased shoot Fe, P, and Zn concentrations and improved metabolic activity and oxidative stress tolerance”
Claim · model-written summary
Maize was more sensitive to alkalinity.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Maize was more sensitive to alkalinity but showed similar nutrient responses at 5 mM NaHCO 3”
Claim · model-written summary
Maize showed similar nutrient responses at 5 mM NaHCO3 alkalinity.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Maize was more sensitive to alkalinity but showed similar nutrient responses at 5 mM NaHCO 3”
Claim · model-written summary
Speciation modeling indicated Fe displacement from Fe-EDTA at high pH, forming insoluble FePO4 and Fe(OH)3.
- Taxon
- fava bean and maizeVicia faba
Zea mayse0 - Outcome
- Fe displacement from Fe-EDTAe1
- Qualifier
- at high pH, forming insoluble FePO 4 and Fe(OH) 3e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in fava bean and maize under increasing alkalinity”
e1“Speciation modeling (MINEQL+5.0) indicated Fe displacement from Fe-EDTA at high pH, forming insoluble FePO 4 and Fe(OH) 3”
Claim · model-written summary
Fe-HBED maintained higher Fe, Ca and P solubility than Fe-EDTA and Fe-DTPA under alkaline conditions.
- Taxon
- fava bean and maizeVicia fabaZea mayse0
- Treatment
- Fe-HBEDe1
- Outcome
- Fe, Ca, and P solubilitye1
- Direction
- highere1
- Comparator
- Fe-EDTA and Fe-DTPAe1
- Setting
- alkaline conditionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in fava bean and maize under increasing alkalinity”
e1“Fe-HBED maintained higher Fe, Ca, and P solubility than Fe-EDTA and Fe-DTPA under alkaline conditions”
Claim · model-written summary
Stable Fe chelates were linked to lower P in precipitates.
- Taxon
- fava bean and maizeVicia fabaZea mayse0
- Treatment
- stable Fe chelatese1
- Outcome
- P in precipitatese1
- Direction
- lowere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in fava bean and maize under increasing alkalinity”
e1“SEM-EDX analysis linked stable Fe chelates to lower P in precipitates”
The same questions in other papers
iron atom · nutrient: content · Zea mays (maize)Positive and negative results
48 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- no effect
50 papers more in this group
See all 54 papers →iron atom · nutrient: content · Vicia faba (faba bean)Results agree
1 paper in the same direction as this paper
- positive
micronutrient · nutrient: content · Vicia faba (faba bean)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.