ORIGINAL ARTICLE
Degradation rate of chloridazon in soil as influenced by adjuvants
1
institute of Soil Science and Plant Cultivation, State Research Institute
Department of Weed Science and Tillage Systems
Orzechowa 61, 50-540 Wrocław, Poland
Corresponding author
Mariusz Kucharski
institute of Soil Science and Plant Cultivation, State Research Institute Department of Weed Science and Tillage Systems Orzechowa 61, 50-540 Wrocław, Poland
institute of Soil Science and Plant Cultivation, State Research Institute Department of Weed Science and Tillage Systems Orzechowa 61, 50-540 Wrocław, Poland
Journal of Plant Protection Research 2012;52(1):114–117
KEYWORDS
ABSTRACT
The aim of this work was to evaluate the influence of an adjuvant addition on chloridazon degradation rate in soil. The
experiment was carried out under controlled laboratory conditions. Chloridazon was applied alone and in a mixture with three
different adjuvants: oil, surfactant and multicomponent (used for preemergence application). Chloridazon residue was analysed using gas chromatography with electron capture detector (GC/ECD). Good linearity was found between logarithmic concentration of
chloridazon residues and time. The addition of oil and surfactant adjuvants slowed down the degradation of chloridazon in soil. The
DT
50
values for the mixture of chloridazon + oil and surfactant adjuvants was about 8–14 days higher in comparison with the DT
50
for
chloridazon applied alone (43 days). No significant differences were observed between degradation rates and the DT
50
for chloridazon
applied alone and with a multicomponent adjuvant.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
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