The effectiveness of soil mixing by tillage implements Craig Scanlan, Steve Davies, Damian Priest and Gavin Sarre.

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Presentation transcript:

The effectiveness of soil mixing by tillage implements Craig Scanlan, Steve Davies, Damian Priest and Gavin Sarre.

Mixing Burial of surface layer Should soil mixing guide my choice of implement ? Loosening soil Seedbed

Measuring soil mixing required a new method

Redistribution of soil by tillage implements

Colour blobs can be used to measure mixing efficiency. Low mixing efficiency High mixing efficiency

Inverted soils were equally mixed (patchy).

More samples are required for a reliable pH mean after soil inversion.

Control Rotary spader Mouldboard plough

A model to predict soil profiles after inversion and lime or clay application.

Thanks to…. GRDC Project DAW00204