Simulated Rainfall Removal of Tricyclazole Sprayed on Rice Foliage

Two rainfall simulations of 30 mm h⁻¹, with 48-h interval between two simulations, were performed on rice lysimeters at 24, 48, and 72 h after being sprayed with tricyclazole. In the first simulated rainfall, wash-off concentration of tricyclazole was significant irrespective of the interval between...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2008-05, Vol.80 (5), p.438-442
Main Authors: Phong, Thai Khanh, Nhung, Dang Thi Tuyet, Yamazaki, Kenichi, Takagi, Kazuhiro, Watanabe, Hirozumi
Format: Article
Language:English
Subjects:
Aquatic Pollution
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Foliage
Fungicides, Industrial - analysis
Fungicides, Industrial - chemistry
Lysimeters
Models, Chemical
Oryza - chemistry
Oryza sativa
Pesticide Residues - analysis
Pesticide Residues - chemistry
Pesticides
Plant Leaves - chemistry
Pollution
Rain
Rice
Simulated rainfall
Simulation
Soil contamination
Soil Science & Conservation
Thiazoles - analysis
Thiazoles - chemistry
Waste Water Technology
Water Management
Water Pollution Control
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Summary:Two rainfall simulations of 30 mm h⁻¹, with 48-h interval between two simulations, were performed on rice lysimeters at 24, 48, and 72 h after being sprayed with tricyclazole. In the first simulated rainfall, wash-off concentration of tricyclazole was significant irrespective of the interval between the spray time and the rainfall simulation. And from 20.5% to 24.2% of tricyclazole deposited on leaves was removed from the rice foliage. In the second simulated rainfall, concentration of tricyclazole in wash-off water was significantly lower and less than 3.6% of the deposited tricyclazole was lost.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-008-9431-8