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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1046/j.1365-3180.1998.00099.x/epdf
Last checked: 10/13/2015
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| Publication Type:
| Refereed |
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| Author(s): | Jurado-Exposito, M.;
Walker, A. |
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| Author Affiliation: | Jurado-Exposito: Post-doctoral Research Fellow from CSIC, Instituto de Agricultura Sostenible, 14080 Cordoba, Spain; and Walker: Horticulture Research International, Wellesbourne, Walker CV35 9EF, UK |
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| Title: | Degradation of isoproturon, propyzamide and alachlor in soil with constant and variable incubation conditions |
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| Source: | Weed Research. Vol. 38, No. 4, August 1998, p. 309-318. |
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| Publishing Information: | Oxford: Blackwell Scientific Publications |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Isoproturon; Pronamide; Loam soils; Degradation; Alachlor; Temperatures; Soil moisture
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| Abstract/Contents: | "Isoproturon, propyzamide and alachlor were incubated in a sandy clay loam soil either with constant conditions (10°C or 20°C with soil moisture at 10% or 20% by weight) or with variable temperature at constant soil moisture, variable soil moisture at constant temperature, or with both temperature and soil moisture varying over time. Rates of degradation in the constant condition incubations approximated to first-order kinetics in all treatments, and the first-order half-lives derived from the data were used to parameterize a simple mathematical model that stimulated degradation when temperature and/or moisture varied on a daily basis. Calculations from the model gave excellent agreement with observed dissipation patterns of isoproturon, gave acceptable predictions of the behaviour of alachlor but were not precise with propyzamide. When the soil was exposed to wetting and drying cycles, propyzamide degradation was initially slower than that predicted, but the rate of loss increased after about 30 - 35 days, indicating microbial adaptation to degrade the compound under these experimental conditions. The implications of the results for simulation of pesticide in field soils are discussed." |
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| Language: | English |
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| References: | 19 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jurado-Exposito, M., and A. Walker. 1998. Degradation of isoproturon, propyzamide and alachlor in soil with constant and variable incubation conditions. Weed Res. 38(4):p. 309-318. |
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| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1046/j.1365-3180.1998.00099.x/epdf
Last checked: 10/13/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 599 .W4 |
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