Cellulose Microbeads : Toward the Controlled Release of Nutrients to Plants
(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
- Gomes, Marcos Henrique Feresin ; Callaghan, Ciaran ; Sipano Mendes, Antonio Cesar ; Edler, Karen J. LU ; Mattia, Davide ; de Jong van Lier, Querijn and Wallace Pereira de Carvalho, Hudson
- publishing date
- 2022-04-18
- 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}}, }