WARBURN ESTATE WINES
Warburn Estate, owned by the Sergi family, is one of Australia’s top ten wine producers with a winemaking heritage brought to the area from Italy in 1952. Today, it stands as a fourth generation, pioneering wine family.
Baseline soil analysis and treatments commenced in Autumn 2016 at the Tharbogang site near Griffith NSW. Soils are deep hard-setting clays. Fertigation is the standard practice. Fertigation continued for ASM treated rows with irrigation rates unchanged. All other standard management practices also continued.
Visual improvements for ASM treated rows in the first 12 months have been matched by data for an increase in bunch weights, longer shoot lengths, higher sugar levels and more yield per metre of row. However, the dense canopy encouraged Botrytis fungal disease.
Soil test results are very similar with and without ASM treatments. As a general comment we can say that further increases in organic matter are required, especially below 10cm, to help build soil structure for infiltration of air and water down into the deeper layers. Additional soil tests are needed for further analysis, given the positive set of data collected for improvements in vine growth, grape production and quality.
This Case Study was jointly funded by ASM and the NSW Environment Protection Authority (EPA). NSW EPA provided financial support under their Organics Market Development Program to demonstrate the use of recycled organics on farms in NSW.
Property Size: 35 hectares
Type: Vineyards- Savignon Blanc
Location: Griffith, NSW
Aim: To show the potential economic benefits from the use of high quality certified compost
Results: Additional soil tests are needed for further analysis, given the positive set of data collected for improvements in vine growth, grape production and quality.