Behavior of simetryn and thiobencarb in rice paddy lysimeters and the effect of excess water storage depth in controlling herbicide run-off

Phong, Thai Khanh, Watanabe, Hirozumi, Nishimura, Taku, Toyoda, Koki and Motobayashi, Takashi (2008) Behavior of simetryn and thiobencarb in rice paddy lysimeters and the effect of excess water storage depth in controlling herbicide run-off. Weed Biology and Management, 8 4: 243-249.


Author Phong, Thai Khanh
Watanabe, Hirozumi
Nishimura, Taku
Toyoda, Koki
Motobayashi, Takashi
Title Behavior of simetryn and thiobencarb in rice paddy lysimeters and the effect of excess water storage depth in controlling herbicide run-off
Journal name Weed Biology and Management  (ERA 2012 Listed)    (ERA 2010 Rank B)   Check publisher's open access policy
Publication date 2008-12
Sub-type Article
DOI 10.1111/j.1445-6664.2008.00304.x
Volume number 8
Issue number 4
ISSN 1444-6162; 1445-6664
Start page 243
End page 249
Total pages 7
Place of publication Richmond, Vic., Australia
Publisher Wiley-Blackwell Publishing Asia
Language eng
Abstract Eight small-scale lysimeters with different excess water storage depths (EWSDs) were used to investigate the behavior of two herbicides, simetryn and thiobencarb, under paddy conditions. The concentration of simetryn dissipated similarly in all the lysimeters, while the thiobencarb concentration varied significantly because thiobencarb can adsorb onto the dissolved organic matter in a manure slurry, which was applied to six of the lysimeters. The herbicide losses (the percentage of the applied mass) from the lysimeters were reversely proportional with the EWSD. The correlation was stronger for simetryn than for thiobencarb. An appropriate EWSD is required to effectively prevent herbicide run-off from the paddy field, especially when a rainfall event occurs soon after herbicide application.
Keyword Lysimeter
Paddy
Run-off
Simetryn
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article
Collection: National Research Centre for Environmental Toxicology Publications
 
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