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Ash from rice stubble inactivates thiobencarb and molinate
Author(s) -
TOTH J.,
MILHAM P. J.,
RAISON J. M.
Publication year - 1981
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1981.tb00104.x
Subject(s) - paddy field , echinochloa , agronomy , echinochloa crus galli , chemistry , weed , horticulture , biology
Summary: The vegetative growth of Japanese millet ( Echinochloa utilis Ohwi et Yabuno) was much lens reduced by pre‐emergent treatments of thiobencarb ( S ‐eithyl hexahydro‐1,4‐azepine‐l‐thiolcarbamate) and molinate (S‐(4‐chlorobenzyl)‐ N.N ‐diethylithiolcarbamate] when the herbicides were applied at <4 l a.i. ha −1 over rice stubble ash. The effcct was caused by adsorption of the herbicides onto activated carbon in the ash and occurred alike in field and pot experiments. The reduction in herbicide activity was quantified in the pot experiment. There the ash rendered at least 60% of the applied herbicide biologically unavailable.