Kinetics of slow release of nitrogen fertiliser from multi-layered nanofibrous structures

Javazmi, Leila and Young, Anthony and Ash, Gavin J. and Low, Tobias ORCID: (2021) Kinetics of slow release of nitrogen fertiliser from multi-layered nanofibrous structures. Scientific Reports, 11:4871. pp. 1-9. ISSN 2045-2322

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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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021)
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Crop Health (24 Mar 2014 -)
Date Deposited: 08 Mar 2021 05:46
Last Modified: 03 Aug 2022 00:31
Uncontrolled Keywords: fertilisers, electrospinning, multi-layered electrospun nanofibre, release rate of cumulative nitrogen
Fields of Research (2008): 10 Technology > 1007 Nanotechnology > 100707 Nanomanufacturing
10 Technology > 1007 Nanotechnology > 100701 Environmental Nanotechnology
10 Technology > 1007 Nanotechnology > 100708 Nanomaterials
Fields of Research (2020): 41 ENVIRONMENTAL SCIENCES > 4199 Other environmental sciences > 419999 Other environmental sciences not elsewhere classified
Socio-Economic Objectives (2008): D Environment > 96 Environment > 9614 Soils > 961499 Soils not elsewhere classified
Socio-Economic Objectives (2020): 24 MANUFACTURING > 2499 Other manufacturing > 249999 Other manufacturing not elsewhere classified
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