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- Title
Evidence for cross-adaptation between s-triazine herbicides resulting in reduced efficacy under field conditions.
- Authors
Krutz, L. Jason; Burke, Ian C.; Reddy, Krishna N.; Zablotowicz, Robert M.
- Abstract
The article presents a study which aims to determine the field persistence of simazine in atrazine-adapted and non-adapted soils and compares the mineralization of ring-labeled C-simazine and C-atrazine between atrazine-adapted and non-adapted soils. The enhanced atrazine degradation has been observed in agricultural soils from around the globe. The pooled over two pre-emergent (PRE) application dates revealed that simazine field persistence was 1.4-fold lower in atrazine-adapted than in non-adapted soils. The study showed that for both simazine and atrazine, the mineralization lag phase was 4.3-fold shorter and the mineralization rate constant was 3.5-fold higher in atrazine-adapted than in non-adapted soils.
- Subjects
HERBICIDES; PESTICIDES; ATRAZINE; SOILS; MICROORGANISMS; BACTERIAL metabolism; SOIL science; WEED control; AGRICULTURAL research
- Publication
Pest Management Science, 2008, Vol 64, Issue 10, p1024
- ISSN
1526-498X
- Publication type
Article
- DOI
10.1002/ps.1601