In a GRDC funded scoping study conducted in 2003 in southern NSW, canola yield decline was the number one research issue identified by growers. Whilst a range of factors have been identified as possible contributors to this decline, disease (particularly blackleg and sclerotinia) was seen as the most immediate issue requiring further research. However intensive paddock surveys have also revealed that subsoil constraints, such as sodicity and salinity, could also be impacting on canola performance in some areas.

FarmLink has been involved in a number of collaborative projects investigating canola yield decline in southern NSW since 2003. These projects include:

• Canola Plus (disease management) - 2003 to 2005

• Canola Survey & Modelling - 2003 to 2005

• Canola in Depth (impact of subsoil constraints) - 2007 to 2009

Canola Plus - disease mgt (2003 to 2005)

Canola Plus (R&D Trials)
2005 - 170kb pdf

Canola Plus (R&D Trials)
2004 - 212kb pdf

Canola Plus (R&D Trials)
2003 - 230kb pdf

Link to further information on Canola Plus

Canola Plus (demonstration trials)

Canola Demonstration Trials
2005 - 47kb pdf

Canola Demonstration Trials
2004 - 42kb pdf

Canola Demonstration Trials
2003 - 510kb pdf

Link to further information on Canola Plus

Canola survey & modelling (2003 to 2005)

Canola Survey & Modelling
2005 - 99kb pdf

Canola Survey & Modelling
2004 - 104kb pdf

Canola Survey & Modelling
2003 - 176kb pdf

Link to further information on Canola Survey & Modelling

• Canola in Depth - impact of subsoil constraints (2007 to 2009)
• Click here for Canola in Depth fact sheets
• Link to further information on Canola in Depth