Foliar Application of Humic-Stabilized Nanoferrihydrite Resulted in an Increase in the Content of Iron in Wheat Leaves

Zimbovskaya, Mariya M.; Polyakov, Alexander Yu.; Volkov, Dmitry S.; Kulikova, Natalia A.; Lebedev, Vasily A.; Pankratov, Denis A.; Konstantinov, Andrey I.; Parfenova, Aksana M.; Zhilkibaev, Oral T.; Perminova, Irina V.

doi:10.3390/agronomy10121891

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Foliar Application of Humic-Stabilized Nanoferrihydrite Resulted in an Increase in the Content of Iron in Wheat Leaves

Mariya M. Zimbovskaya

¹,

Alexander Yu. Polyakov

^2,3

^1,4

^1,5,6,

Andrey I. Konstantinov

¹,

Aksana M. Parfenova

¹,

Oral T. Zhilkibaev

^7,8 and

Irina V. Perminova

^1,*

Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia

Department of Materials Science, Lomonosov Moscow State University, Leninskiye Gory 1-73, 119991 Moscow, Russia

Industrial Focus Group XUV Optics, MESA+ Institute of Nanotechnology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands

⁴

Department of Chemistry and Physical Chemistry of Soils, V.V. Dokuchaev Soil Science Institute, Pyzhyovskiy Lane 7 Build. 2, 119017 Moscow, Russia

⁵

Department of Soil Science, Lomonosov Moscow State University, Leninskiye Gory 1-12, 119991 Moscow, Russia

⁶

Bach Institute of Biochemistry, Fundamentals of Biotechnology Federal Research Center, Russian Academy of Sciences, pr. Leninskiy 33, 119071 Moscow, Russia

⁷

Department of Chemistry, Al Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty 050040, Kazakhstan

⁸

InterAgroTech LLC, Almaty 0500040, Kazakhstan

Author to whom correspondence should be addressed.

Agronomy 2020, 10(12), 1891; https://doi.org/10.3390/agronomy10121891

Received: 1 November 2020 / Revised: 26 November 2020 / Accepted: 27 November 2020 / Published: 29 November 2020

(This article belongs to the Special Issue Humic Substances: A Novel Eco-Friendly Fertilizer)

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Abstract

The objective of this study was to synthesize iron (hydr)oxide nanoparticles (IONPs) stabilized by humic substances, and to estimate the feasibility of their use for foliar application on iron deficient plants. The IONPs were synthesized by rapid hydrolysis of iron(III) nitrate in a solution of potassium humate. The iron speciation and nanoparticle morphologies were characterized using X-ray diffraction, transmission electron microscopy, and Mössbauer spectroscopy. The obtained sample of IONPs was applied at concentrations of 1- and 10-mM Fe, and 0.2% urea was used as an adjuvant. Wheat plants (Triticum aestivum L. cv. L15) were used for the iron uptake test. For both of the concentrations tested, spraying the nanoparticles resulted in a 70–75% higher iron content in wheat leaves compared to ferric ammonium salt of ethylenediaminetetraacetic acid (Fe-EDTA). The synergistic effect of humic substances acting as a surfactant seemed to promote an increase in the iron uptake of the ferrihydrite nanoparticles compared to the aqueous Fe-EDTA solution used in this study. We concluded that humic-stabilized IONPs are much better suited to foliar application as compared to soil amendment when applied as a source of iron for plants. This is because humic substances act as a capping agent for nanoparticles and the surfactants enhance iron penetration into the leaf. View Full-Text

Keywords: humic substances; capping agents; ferrihydrite; nanoparticles; iron deficiency; nutrition; biofortification; foliar application; wheat

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MDPI and ACS Style

Zimbovskaya, M.M.; Polyakov, A.Y.; Volkov, D.S.; Kulikova, N.A.; Lebedev, V.A.; Pankratov, D.A.; Konstantinov, A.I.; Parfenova, A.M.; Zhilkibaev, O.T.; Perminova, I.V. Foliar Application of Humic-Stabilized Nanoferrihydrite Resulted in an Increase in the Content of Iron in Wheat Leaves. Agronomy 2020, 10, 1891. https://doi.org/10.3390/agronomy10121891

AMA Style

Zimbovskaya MM, Polyakov AY, Volkov DS, Kulikova NA, Lebedev VA, Pankratov DA, Konstantinov AI, Parfenova AM, Zhilkibaev OT, Perminova IV. Foliar Application of Humic-Stabilized Nanoferrihydrite Resulted in an Increase in the Content of Iron in Wheat Leaves. Agronomy. 2020; 10(12):1891. https://doi.org/10.3390/agronomy10121891

Chicago/Turabian Style

Zimbovskaya, Mariya M., Alexander Y. Polyakov, Dmitry S. Volkov, Natalia A. Kulikova, Vasily A. Lebedev, Denis A. Pankratov, Andrey I. Konstantinov, Aksana M. Parfenova, Oral T. Zhilkibaev, and Irina V. Perminova. 2020. "Foliar Application of Humic-Stabilized Nanoferrihydrite Resulted in an Increase in the Content of Iron in Wheat Leaves" Agronomy 10, no. 12: 1891. https://doi.org/10.3390/agronomy10121891

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