
TY  - JOUR
A1  - Black, I. D. 
A1  - Pederson, R. N. 
A1  - Flynn, A. 
A1  - Moerkerk, M. 
A1  - Dyson, C. B. 
A1  - Kookana, R. 
A1  - Wilhelm, N. 
T1  - Mobility and persistence of three sulfonylurea herbicides in alkaline cropping soils of south-eastern Australia
JF  - Australian Journal of Experimental Agriculture
JO  - Aust. J. Exp. Agric.
Y1  - 1999
VL  - 39
IS  - 4
SP  - 465
EP  - 472
KW  - 
UR  - https://doi.org/10.1071/EA98097 
N2  - Biologically active residues of the herbicides metsulfuron-methyl, chlorsulfuron and triasulfuron were estimated with field pea bioassays in soil samples to 80 cm depth from 4 field trials in south-eastern Australia situated on neutral to highly alkaline soil. Residues were both mobile and persistent at low levels. Leaching occurred beyond the lowest sampling depth during the winter&#8211;spring growing season. Metsulfuron-methyl was the most mobile of the 3 herbicides. Plant-back experiments involving susceptible crop and pasture species on 2 of the sites showed that the rates of decline of these residues in the sampling zone were slower than might be inferred from label plant-back recommendations in 1 of 2 seasons. 
ER  -

