Managing multiple soil constraints – long term benefits from strategic tillage and soil amendments

On compacted and acidic deep sand near Mingenew the combination of soil inversion and liming has shown greater and more sustained yield benefits over 10 seasons than either liming or inversion on their own. On repellent and compacted deep sandy duplex near Esperance, soil inversion, rotary spading and clayspreading have resulted in consistent and significant crop yield benefits over 5-seasons whereas mitigation approaches have shown minimal benefit. Soil amelioration benefits are larger and last-longer when multiple soil and agronomic constraints are addressed.