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Cellulose Microbeads : Toward the Controlled Release of Nutrients to Plants

Gomes, Marcos Henrique Feresin ; Callaghan, Ciaran ; Sipano Mendes, Antonio Cesar ; Edler, Karen J. LU orcid ; Mattia, Davide ; de Jong van Lier, Querijn and Wallace Pereira de Carvalho, Hudson (2022) In ACS Agricultural Science and Technology 2(2). p.340-348
Abstract

The use of conventional fertilizers is associated with pollution due to leaching and a mismatch between release rates and crop requirements for optimal development. Slow-release fertilizers could address both problems. Here, the synthesis and properties of a zinc fertilizer composed of cellulose microbeads loaded with aqueous ZnSO4 are reported for the first time. UV-vis spectrophotometry showed that the beads immersed in water released all Zn2+ in about 30 min, regardless of the initial Zn2+ concentration. In two sandy substrates (a pure sand and a sandy loam substrate), microprobe X-ray fluorescence spectroscopy determined Zn2+ release from beads to the substrate corresponding to count rates... (More)

The use of conventional fertilizers is associated with pollution due to leaching and a mismatch between release rates and crop requirements for optimal development. Slow-release fertilizers could address both problems. Here, the synthesis and properties of a zinc fertilizer composed of cellulose microbeads loaded with aqueous ZnSO4 are reported for the first time. UV-vis spectrophotometry showed that the beads immersed in water released all Zn2+ in about 30 min, regardless of the initial Zn2+ concentration. In two sandy substrates (a pure sand and a sandy loam substrate), microprobe X-ray fluorescence spectroscopy determined Zn2+ release from beads to the substrate corresponding to count rates of about 0.115 mm min-1 s-1, irrespective of the substrate and with a low sensitivity for the water content, except in a very dry range. These results indicate that these microbeads could represent a practical and sustainable solution for efficient nutrient supply in agriculture.

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author
; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
agriculture 4.0, maize, slow release, sustainability, Zn fertilization
in
ACS Agricultural Science and Technology
volume
2
issue
2
pages
9 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85127639169
ISSN
2692-1952
DOI
10.1021/acsagscitech.1c00233
language
English
LU publication?
no
additional info
Publisher Copyright: © 2022 American Chemical Society.
id
d0682415-1259-4d5e-ab10-27b44d3de748
date added to LUP
2022-07-12 13:59:10
date last changed
2023-02-15 09:08:27
@article{d0682415-1259-4d5e-ab10-27b44d3de748,
  abstract     = {{<p>The use of conventional fertilizers is associated with pollution due to leaching and a mismatch between release rates and crop requirements for optimal development. Slow-release fertilizers could address both problems. Here, the synthesis and properties of a zinc fertilizer composed of cellulose microbeads loaded with aqueous ZnSO<sub>4</sub> are reported for the first time. UV-vis spectrophotometry showed that the beads immersed in water released all Zn<sup>2+</sup> in about 30 min, regardless of the initial Zn<sup>2+</sup> concentration. In two sandy substrates (a pure sand and a sandy loam substrate), microprobe X-ray fluorescence spectroscopy determined Zn<sup>2+</sup> release from beads to the substrate corresponding to count rates of about 0.115 mm min<sup>-1</sup> s<sup>-1</sup>, irrespective of the substrate and with a low sensitivity for the water content, except in a very dry range. These results indicate that these microbeads could represent a practical and sustainable solution for efficient nutrient supply in agriculture. </p>}},
  author       = {{Gomes, Marcos Henrique Feresin and Callaghan, Ciaran and Sipano Mendes, Antonio Cesar and Edler, Karen J. and Mattia, Davide and de Jong van Lier, Querijn and Wallace Pereira de Carvalho, Hudson}},
  issn         = {{2692-1952}},
  keywords     = {{agriculture 4.0; maize; slow release; sustainability; Zn fertilization}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{2}},
  pages        = {{340--348}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Agricultural Science and Technology}},
  title        = {{Cellulose Microbeads : Toward the Controlled Release of Nutrients to Plants}},
  url          = {{http://dx.doi.org/10.1021/acsagscitech.1c00233}},
  doi          = {{10.1021/acsagscitech.1c00233}},
  volume       = {{2}},
  year         = {{2022}},
}