Project Details (2007 to 2009):

Previous research has indicated that subsoil constraints are one of the key factors, other than disease, influencing declining canola yields. In the 'Canola Survey & Modelling' project (see link below), 60% of paddocks surveyed to the south of the FarmLink region showed severe root restriction and yielded 10 to 50% below potential. Subsequent soil analyses identified a range of subsoil constraints including compaction, sodicity, salinity and subsurface acidity.

As a result, GRDC funded a new project to further investigate the impact subsoil constraints are having on canola yields. This project, 'Canola in Depth', commenced in 2007 and is a collaborative project involving the EH Graham Centre for Agricultural Innovation, CSIRO, FarmLink, Victorian DPI and the University of Melbourne. Information and results from the project can be found in the 'Canola in Depth' fact sheets:

Click here for Canola in Depth fact sheets

More Links for Canola Yield Decline below:

• Click here for 'Canola Plus' (disease)

• Click here for 'Canola Survey & Modelling'