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Permanent link (DOI): https://doi.org/10.7939/R3KP7TV76

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Dissipation of Bromacil in Humic Luvic Gleysols in Northwestern Alberta Open Access

Descriptions

Author or creator
Landsburg, S.
Dwyer, E.
Additional contributors
Subject/Keyword
Pipeline
NOVA Gas Transmission Ltd.
NGTL Environmental Research Monographs 1995-3
Bromacil
Gleysol
Manure
Leaching
Type of item
Report
Language
English
Place
Time
Description
The dissipation of bromacil in Humic Luvic Gleysols amended with cow manure was evaluated at two sites in northwestern Alberta from 1984 to 1987. At each site, nine locations were sampled in 4 cm increments from 0 to 40 cm, and analyzed for bromacil, pH, electrical conductivity (EC), and organic carbon (OC). The addition of manure increased values for OC and pH within the surface 16 cm at Site 1 and 24 cm at Site 2. These increases reflected the inherent organic-alkaline nature of the manure itself. Largest increases for both variables occurred between 8 and 16 cm, indicating the predominant depth of cultivation and rooting. Cow manure increased EC values within the surface 4 cm at Site 1 and 12 cm at Site 2. Decreases occurred between 24 and 40 cm at each site, and were caused by leaching. Cow manure promoted microbial degradation of bromacil through increased levels of OC. Bromacil concentrations were lower at the depths where OC percentages were higher. Bromacil concentrations were also reduced throughout the entire 40 cm at Site 2 by leaching. Leaching was restricted at Site 2 by an intermittent high water table, where bromacil concentrations were decreased only within the surface 12 cm. Overall, results of the study show bromacil to be dissipated by two methods: microbial degradation and leaching.
Date created
1995
DOI
doi:10.7939/R3KP7TV76
License information
Rights
Permission for non-commercial use, publication or presentation of excerpts or figures is granted, provided appropriate attribution is cited. Commercial reproduction, in whole or in part, is not permitted without prior written consent. The use of these materials by the end user is done without any affiliation with or endorsement by TransCanada Pipelines Ltd. Reliance upon the end user's use of these materials is at the sole risk of the end user.
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Source
TransCanada Pipelines Ltd.
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