Behavior of pretilachlor and dimethametryn in water of flooded rice fields

Phong, Thai Khanh, Yoshino, Katsunori, Hiramatsu, Kazuaki, Harada, Masayoshi, & Inoue, Tsuyoshi (2010) Behavior of pretilachlor and dimethametryn in water of flooded rice fields. Journal of the Faculty of Agriculture, 55(2), pp. 321-326.

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In order to understand the behavior of pretilachlor, a popular rice herbicide in the world, and a synergetic active ingredient, dimethametryn, a monitoring study was conducted in 3 paddy plots in Kyushu region, Japan. The monitoring indicated different behaviors for both pesticides from those reported in the literature. Maximum concentrations of pretilachlor and dimethametryn were 1 order of magnitude lower than the values observed in previous studies. However, the dissipation rates estimated from monitoring data were in agreement with other studies in Japan. The pesticide product was tested and showed good dissolution of pretilachlor and dimethametryn in water, suggesting that another study is needed to explain the low concentrations of the two pesticides in the fields. Besides pesticide behaviors, it was observed from the monitoring that water management in paddy rice cultivation still requires more attention to reduce the environmental risk of rice pesticides.

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ID Code: 89001
Item Type: Journal Article
Refereed: Yes
Keywords: Dissolution, Drainage, Paddy field, Rice pesticide, Water management
ISSN: 0023-6152
Divisions: Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 14 Oct 2015 04:20
Last Modified: 23 Oct 2015 04:14

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