Excess water storage depth-a water management practice to control simetryn and thiobencarb runoff from paddy fields
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چکیده
منابع مشابه
Behavior of simetryn and thiobencarb in the plough zone of rice fields.
The behavior of simetryn and thiobencarb in flooded rice soil was investigated in a 2-year study. The concentrations of simetryn and thiobencarb were in the hundreds of μg kg−1 in the top soil layer (0–5 cm) and became significantly lower in tens of μg kg−1 in the deeper soil layers (5–10 and 10–15 cm). The half-lives of the two herbicides were also shorter (36 and 17 days for simetryn and thio...
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Runoff from a cow-calf pasture in eastern Nebraska was monitored for total coliforms (TC), fecal coliforms (FC), and fecal streptococci (FS) during 1976, 1977, and 1978. Bacteriological counts in runoff from both grazed and ungrazed areas generally exceeded recommended water quality standards. The FC group was the best indicator group of the impact of grazing. Rainfall runoff from the grazed ar...
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ژورنال
عنوان ژورنال: Journal of Pesticide Science
سال: 2008
ISSN: 1348-589X,1349-0923
DOI: 10.1584/jpestics.g07-32