Kinetics of slow release of nitrogen fertiliser from multi-layered nanofibrous structures
Article
Article Title | Kinetics of slow release of nitrogen fertiliser from multi-layered nanofibrous structures |
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ERA Journal ID | 201487 |
Article Category | Article |
Authors | Javazmi, Leila (Author), Young, Anthony (Author), Ash, Gavin J. (Author) and Low, Tobias (Author) |
Journal Title | Scientific Reports |
Journal Citation | 11, pp. 1-9 |
Article Number | 4871 |
Number of Pages | 9 |
Year | 2021 |
Publisher | Nature Publishing Group |
Place of Publication | United Kingdom |
ISSN | 2045-2322 |
Digital Object Identifier (DOI) | https://doi.org/10.1038/s41598-021-84460-x |
Web Address (URL) | https://www.nature.com/articles/s41598-021-84460-x |
Abstract | Fertilisers are essential in modern agriculture to enhance plant growth, crop production and product quality. Recent research has focused on the development of delivery systems designed to prolong fertiliser release. This study introduces a new technology to encapsulate and release molecules of fertilisers by using multi-layered electrospun nanofibre as a carrier. Single-layer poly L-lactic acid (PLLA) nanofibres loaded with urea were fabricated using electrospinning. Triple-layer nanofibrous structures were produced by electrospinning polyhydroxybutyrate (PHB) nanofibres as external layers with PLLA nanofibres impregnated with urea fertiliser as the middle layer. Scanning electron microscopy (SEM) and Fourier transform infrared spectrophotometry (FTIR) were employed to characterize the morphology of electrospun nanofibres. Urea release dynamic was analysed using a total nitrogen instrument (TNM-1). The results indicated that triple-layered urea-impregnated nanofibrous structures led to lower initial rate of nitrogen release and slower release rate of cumulative nitrogen which extended for more than three months. It is concluded that triple-layer nanofibrous structures have the potential for slow release delivery of fertilisers. |
Keywords | fertilisers, electrospinning, multi-layered electrospun nanofibre, release rate of cumulative nitrogen |
ANZSRC Field of Research 2020 | 419999. Other environmental sciences not elsewhere classified |
Byline Affiliations | School of Mechanical and Electrical Engineering |
Centre for Crop Health | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6423/kinetics-of-slow-release-of-nitrogen-fertiliser-from-multi-layered-nanofibrous-structures
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