eprintid: 6039
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/60/39
datestamp: 2023-11-09 16:17:47
lastmod: 2023-11-09 16:17:47
status_changed: 2023-11-09 16:04:39
type: article
metadata_visibility: show
creators_name: Trinh, T.H.
creators_name: Kushaari, K.
creators_name: Shuib, A.S.
creators_name: Ismail, L.
creators_name: Azeem, B.
title: Modelling the release of nitrogen from controlled release fertiliser: Constant and decay release
ispublished: pub
keywords: Crops; Eutrophication; Fertilizers; Metabolism; Nitrogen; Pollution control; Urea; Water pollution; Water pollution control, Aqueous environment; Controlled release; Diffusion model; Environmental pollution control; Nitrogen release; Nitrogen-use efficiency; Preliminary experimental data; Water eutrophication, Finite element method
note: cited By 57
abstract: Urea, when applied to crops is vulnerable to losses from volatilisation and leaching. Controlled release urea enhances nitrogen use efficiency by plants which not only increases the crop yields but also contributes towards environmental pollution control in terms of the alleviation of hazardous gaseous emissions and water eutrophication. This study proposes a multi-diffusion model that simulates nitrogen release from coated urea particles for both the constant and decay release stages of urea. It is developed for multilayer included the coating and water zone, and integrates a Finite-element method (FEM) with 2D geometry to enhance the accuracy of simulation by introducing urea diffusivity in water domain as a function of its concentration. Results from the simulations agreed with preliminary experimental data to a standard error of estimate (SEE) that ranged from 0.0159 to 0.0567 in which the model successfully simulated and predicted nitrogen release from hours to days from smaller to larger particles. A more thorough investigation was then conducted for which the model not only predicted nitrogen release from coated urea but also described the internal release mechanism of urea from the core to urea-coated interface and into aqueous environment. © 2014 IAgrE.
date: 2015
publisher: Academic Press
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84920143963&doi=10.1016%2fj.biosystemseng.2014.12.004&partnerID=40&md5=4071747befdb4c7fe8dd2e117db70d21
id_number: 10.1016/j.biosystemseng.2014.12.004
full_text_status: none
publication: Biosystems Engineering
volume: 130
pagerange: 34-42
refereed: TRUE
issn: 15375110
citation:   Trinh, T.H. and Kushaari, K. and Shuib, A.S. and Ismail, L. and Azeem, B.  (2015) Modelling the release of nitrogen from controlled release fertiliser: Constant and decay release.  Biosystems Engineering, 130.  pp. 34-42.  ISSN 15375110