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Modelling pesticide residues on greasy wool: Comparison of alternative models of pesticide breakdown


Horton, BJ and Campbell, NJ, Modelling pesticide residues on greasy wool: Comparison of alternative models of pesticide breakdown, Australian Journal of Experimental Agriculture, 47, (8) pp. 918-926. ISSN 0816-1089 (2007) [Refereed Article]

DOI: doi:10.1071/EA06228


A comparison was made of a range of different models of wool pesticide breakdown. Linear models, with a constant rate of breakdown as the wool grows, were always inferior to models that allowed the breakdown rate to decrease as the length of wool increased. Two-pool models were usually satisfactory and only minor or no improvement was gained by inclusion of additional pools or more complex models. There was little difference in fit between models with two-way diffusion compared with one-way transfer. The 'standard' model, reported previously, uses two exponential functions rather than multiple pools and was usually the best fit or at least as good a fit as the two- or three-pool models. We recommend that this model continue to be used, although the two-pool model is adequate and may be easier to implement and visualise. However, the three-pool model without transfer is also satisfactory and much faster to evaluate. © CSIRO 2007.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Animal production
Research Field:Animal protection (incl. pests and pathogens)
Objective Division:Animal Production and Animal Primary Products
Objective Group:Livestock raising
Objective Field:Sheep for wool
UTAS Author:Horton, BJ (Dr Brian Horton)
ID Code:63240
Year Published:2007
Web of Science® Times Cited:4
Deposited By:Agricultural Science
Deposited On:2010-04-23
Last Modified:2011-09-23

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