This trial was designed to compare and assess the effectiveness of one-off tillage treatments on soil water repellence, water infiltration, crop establishment and productivity on a water repellent gravel. The trial was conducted on water repellent sandy gravel in Moora. All tillage treatments had a little effect on the management of SWR and plant establishment in the severe water repellent gravel sand at Moora. Nevertheless, yield improvements were recorded, in particular with the “Large offsets” and the “Modified one-way with standard discs” treatments.
In 2016 DAFWA, in collaboration with the WMG, established three claying trials in the region looking at combinations of different clay rates and incorporation methods using a range of tillage equipment. The aim of the trials was to identify the most cost-effective combination/s and produce practical guidelines for farmers seeking long term improvement for enhanced crop productivity on water repellent soils under local growing conditions.
Cultivation is the predominant management tool for subsoil compaction. This may be in the form of deep ripping, spading or ploughing – each with varying costs, benefits and disadvantages of the chosen application. The primary aim of this trial is to test increasing the economic viability of deep ripping using controlled traffic and the addition of topsoil and ameliorants to the subsoil. The trial was located in Moora on deep loamy yellow sand. The results showed the importance of ripping below the hard pan with deeper ripping.
This trial was implemented in 2015 to determine which ameliorant practice is the most effective and economic in remediating subsoil acidity at depth. The trial consists of four replicates of different mixing (untreated, spaded, grizzly) with products applied (untreated, lime, dolomite and lime and dolomite). This trial was designed by a project committee of Liebe members to determine the most effective liming strategy to maximise the return on investment in the Liebe region. The trial was located west of Wubin on a poor performing paddock that has the potential to improve once subsoil constraints have been addressed.
This trial was implemented in 2015 to determine which ameliorant practice is the most effective and economic in remediating subsoil acidity at depth. The trial consists of four replicates of different mixing (untreated, spaded, grizzly) with products applied (untreated, lime, dolomite and lime and dolomite). This trial was designed by a project committee of Liebe members to determine the most effective liming strategy to maximise the return on investment in the Liebe region. The trial was located west of Wubin on a poor performing paddock that has the potential to improve once subsoil constraints have been addressed.
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