The aims of this trial project were to measure:
1. The efficacy of applied lime on grain yield and profitability
2. Differences between incorporation methods
3. Differences between incorporation depths
4. Impact on phosphorous uptake efficiency

• Lime has increased soil pH, soil P availability and shown interesting interactions with micronutrients.
• Incorporation of lime to the depth of the acidic layer is necessary. Cultivation alone, without the addition of lime, had no influence on soil pH. In treatments where lime was applied at 3 t/ha, cultivation increased the depth of pH change. In treatments where 6 t/ha lime was applied, soil pH increased to a depth of 20cm relative to the control.
• Increase in soil pH resulted in an increase in available phosphorus, with an increase of 7-8 mg/kg Colwell P observed in the surface layer of limed versus unlimed plots.
• Liming promoted the uptake of applied micronutrients, with yield gains up to 0.5 t/ha observed in this trial by applying a micronutrient (zinc, copper & molybdenum) foliar spray with lime, compared to where micronutrients were applied without lime.
• Whilst cultivation alone had no influence on grain yield in 2022, both lime application and cultivation provided some benefits in 2023.
• After 2 years no economic advantage of lime was observed, although it is expected that lime will continue to provide economic benefits in the rotation in the future.