Abstract
Abstract BACKGROUND The aim of this work was to study the possible synergic effect between mixtures with iron leonardite humate (L/Fe 3+ ) and synthetic chelates iron (Ch/Fe 3+ : o , o EDDHA /Fe 3+ or HBED/Fe 3+ ), and to reevaluate the classical chelate shuttle‐effect model. Different molar ratios of L/Fe 3+ :Ch/Fe 3+ , different doses, and different sampling times were used in hydroponic and soil experiments using soybean ( Glycine max ) as a model Strategy I crop in calcareous conditions. Ligand competition between the humate and chelating agents was also examined. RESULTS Iron humate participates in the chelate shuttle mechanism, providing available Fe to the chelating agent and then to the plants, showing a slight synergic effect. After a few days, the contribution of the chelates to the Fe nutrition decreases substantially, but the contribution of the humates is maintained. CONCLUSIONS The most efficient ratio was two parts of iron humates and one part of iron chelate. In particular, HBED/Fe 3+ was the most suitable iron chelate because its lasting effect fits the iron humate long‐term effect better. The soluble iron in soil increased and the shoot‐to‐root iron translocation improved due to a synergic effect by a shuttle effect exerted by iron chelate in the mixture. © 2021 Society of Chemical Industry
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Claims 7
Claim · model-written summary
Iron humate provided available iron through a chelate shuttle mechanism with slight synergy.
- Taxon
- Glycine max
Glycine maxt0 - Treatment
- Iron humatee0
- Outcome
- providing available Fee0
- Qualifier
- chelate shuttle mechanisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine max”
e0“Iron humate participates in the chelate shuttle mechanism, providing available Fe to the chelating agent and then to the plants, showing a slight synergic effect.”
Claim · model-written summary
The contribution of chelates to iron nutrition decreased substantially after a few days.
- Taxon
- Glycine maxGlycine maxt0
- Outcome
- contribution of the chelates to the Fe nutritione0
- Direction
- decreases substantiallye0
- Qualifier
- After a few dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine max”
e0“After a few days, the contribution of the chelates to the Fe nutrition decreases substantially, but the contribution of the humates is maintained.”
Claim · model-written summary
The contribution of humates to iron nutrition was maintained after a few days.
- Taxon
- Glycine maxGlycine maxt0
- Outcome
- contribution of the humatese0
- Direction
- maintainede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine max”
e0“After a few days, the contribution of the chelates to the Fe nutrition decreases substantially, but the contribution of the humates is maintained.”
Claim · model-written summary
The most efficient mixture had two parts iron humate and one part iron chelate.
- Taxon
- Glycine maxGlycine maxt0
- Outcome
- most efficient ratioe0
- Value
- two parts of iron humates and one part of iron chelatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine max”
e0“The most efficient ratio was two parts of iron humates and one part of iron chelate.”
Claim · model-written summary
HBED/Fe 3+ was the most suitable iron chelate because its lasting effect matched the long term humate effect.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- HBED/Fe 3+e0
- Outcome
- most suitable iron chelatee0
- Direction
- most suitablee0
- Qualifier
- lasting effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine max”
e0“HBED/Fe 3+ was the most suitable iron chelate because its lasting effect fits the iron humate long‐term effect better.”
Claim · model-written summary
The mixture increased soluble soil iron.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- iron chelate in the mixturee0
- Outcome
- soluble iron in soile0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine max”
e0“The soluble iron in soil increased and the shoot‐to‐root iron translocation improved due to a synergic effect by a shuttle effect exerted by iron chelate in the mixture.”
Claim · model-written summary
The mixture improved shoot to root iron translocation.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- iron chelate in the mixturee0
- Outcome
- shoot‐to‐root iron translocatione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Glycine max”
e0“The soluble iron in soil increased and the shoot‐to‐root iron translocation improved due to a synergic effect by a shuttle effect exerted by iron chelate in the mixture.”
The same questions in other papers
iron chelate · nutrient: content · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- 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.