TY  - CONF
A1  - Widderick, Michael
A1  - Sindel, Brian
A1  - Walker, Steve
T1  - Emergence of Sonchus oleraceus (common sowthistle) is favoured under zero tillage farming systems
Y1  - 2002
CY  - Perth, Western Australia
T3  - 13th Australian Weeds Conference
Y2  - 8-13 September 2002 2002
SP  - 91
EP  - 92
UR  - http://www.caws.org.au/awc/2002/awc200210911.pdf
ER  -