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

journal contribution
posted on 2023-05-17, 02:25 authored by Brian HortonBrian Horton, Campbell, NJ
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.

History

Publication title

Australian Journal of Experimental Agriculture

Volume

47

Issue

8

Pagination

918-926

ISSN

0816-1089

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

CSIRO Publishing

Place of publication

Australia

Repository Status

  • Restricted

Socio-economic Objectives

Sheep for wool

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    University Of Tasmania

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