Gross Margin Summary 2000 to 2006:

Gross margins are considered one of the main aims for conducting this trial. When analysing the GM analysis between systems, we have to remember that there is a certain seasonal influence affecting results. As mentioned above after 7 difficult seasons the gross margins for the Rankins Springs site have suffered. Systems trying to balance inputs and optimise the chemical, biological and physical properties of the soil using various nutrients and/or microbes therefore have been hit hard under these conditions.

Gross margins for the trial are shown below and in the following graphs.