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Leonardite iron humate and synthetic iron chelate mixtures in Glycine max nutrition

Cieschi, María T ; Lucena, Juan J

Journal of the science of food and agriculture, 2021-08, Vol.101 (10), p.4207-4219 [Periódico revisado por pares]

Chichester, UK: John Wiley & Sons, Ltd

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Título:
Leonardite iron humate and synthetic iron chelate mixtures in Glycine max nutrition
Autor: Cieschi, María T ; Lucena, Juan J
Assuntos: Chelates ; Chelating agents ; Chelation ; Edetic Acid - analogs & derivatives ; Edetic Acid - chemistry ; Edetic Acid - metabolism ; Fertilizers - analysis ; Glycine max ; Glycine max - chemistry ; Glycine max - growth & development ; Glycine max - metabolism ; Hydroponics ; Iron ; Iron - chemistry ; Iron - metabolism ; Iron Chelating Agents - chemistry ; Iron Chelating Agents - metabolism ; iron humate ; iron isotopes ; iron nutrition ; Leonardite ; Minerals - chemistry ; Minerals - metabolism ; Nutrition ; Organometallic Compounds - chemistry ; Organometallic Compounds - metabolism ; shuttle effect ; Soil - chemistry ; Soils ; soybean ; Soybeans ; Translocation
É parte de: Journal of the science of food and agriculture, 2021-08, Vol.101 (10), p.4207-4219
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: BACKGROUND The aim of this work was to study the possible synergic effect between mixtures with iron leonardite humate (L/Fe3+) and synthetic chelates iron (Ch/Fe3+: o,oEDDHA /Fe3+ or HBED/Fe3+), and to reevaluate the classical chelate shuttle‐effect model. Different molar ratios of L/Fe3+:Ch/Fe3+, 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/Fe3+ 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
Editor: Chichester, UK: John Wiley & Sons, Ltd
Idioma: Inglês

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Leonardite iron humate and synthetic iron chelate mixtures in Glycine max nutrition

Cieschi, María T ; Lucena, Juan J

Chichester, UK: John Wiley & Sons, Ltd

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