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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:05 |
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Conference: Bucharest University Faculty of Physics 2021 Meeting
Section: Polymer Physics
Title:
Nanobiocomposites for agrochemical applications
Authors:
Simona Liliana ICONARU (1), Stefania RAITA (2), Monica Luminita BADEA (1), Gabriel PREDOI (2), George A. STANCIU (3), Radu HRISTU (3), Carmen CIMPEANU (4), Daniela PREDOI (1)
Affiliation:
1) Multifunctional Materials and Structures Laboratory, National Institute of Materials Physics, Atomistilor Street, No. 405A, P.O. Box MG 07, 077125 Magurele, Romania;
2) Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 105 Splaiul Independentei, Sector 5, 050097 Bucharest, Romania;
3) Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania;
4) Faculty of Land Reclamation and Environmental Engineering, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd, Sector 1, 011464 Bucharest, Romania;
*corresponding author: dpredoi@gmail.com
E-mail
dpredoi@gmail.com
Keywords:
nanobiocomposites, agrochemical applications, foliar fertilization
Abstract:
One of the most widely used in plant foods, wheat, like many other cereals, contains low levels of essential iron micronutrients [1]. However, recent developments in science have led to a shift in targeted research on plants and led to the development of innovative technologies based on the use of nanoparticles in fertilizing plants to increase their micronutrient value. In this context, our study envisages the development of nanocomposites such as iron oxides (IO) and hydroxyapatite (HAp) to be used in agrochemical applications as fertilizers to improve plant quality. Nanocomposites based on iron oxide / hydroxyapatite were obtained by an adapted method. The hydrodynamic size of the particles measured by DLS was for the HAp nanoparticles of about 137 ± 5 nm and for the IO nanoparticles of about 23 ± 5 nm. The soils of wheat plant pots used in experiments, before and after fertilization of the soil with IO solutions were also investigated by Fourier transform infrared spectroscopy (FTIR). The FTIR spectra of the two soil samples before and after fertilization show no noticeable changes, which may be due to the fact that the wheat plants absorbed the iron ions from the iron oxide solution used as fertilizer. The ICP results showed that both soil fertilization and plant foliar fertilization influenced the iron content of the studied wheat plants. Moreover, it was observed that foliar fertilization had a more pronounced influence on the iron content from wheat plants compared to soil fertilization. Moreover, studies on changes in wheat plant organs following anatomical study after foliar and soil fertilization have been performed by optical microscopy. The images recorded on the optical microscope showed that there is an increase in the length of the trichomes depending on the treatment applied to the wheat plant with IO solutions.
References:
[1]. Graham, R. D., Welch, R. M., and Bouis, H. E. (2001). Addressing micronutrient malnutrition through enhancing the nutritional quality of staple foods: principles, perspectives and knowledge gaps. Adv. Agron. 70, 77–142. doi: 10.1016/S0065-2113(01)70004-1
Acknowledgement:
This research was funded by the Romanian Ministry of Research and Innovation through the project PN-III-P1-1.2-PCCDI-2017-0134/contract no. 23PCCDI/2018.
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