• The primary objective of the project was to evaluate the impact on grain production of reefinating suitable soils at 2 different depths (200mm and 400mm) within the south eastern Kwinana zone of Western Australia.
• The second objective of the project was to evaluate different starter fertiliser rates on grain production at the two different reefinating depths.

• Spend the time in determining which soil types and areas should be reefinated as a positive yield response does not occur on all soil types.
• Higher fertiliser rates will improve yield potential especially in better seasons
• Seeing discernable yield differences between small differences in fertiliser rates can be challenging in grower demonstration style trials. 

Further work is required to categorize rock/soil types in relation to there ability to respond to reefinating