Guilfoyle Carbon project
The Kemp family, who farm heavy Mallee clay at Birchip, Victoria, have been issued 382 ACCUs under the ACCU Scheme through the Guilfoyle Carbon Project, their first credits banked.
With support from AgriProve and LawrieCo, Colin and Nathan Kemp spent the past eight years reworking their whole nutrition program, combining synthetic and biological fertilisers to build soil health and cut input costs.
Farm Profile
Enterprise: Wheat and barley cropping on heavy Mallee clay
Rainfall: 160mm in-crop rain in 2025, one of the driest seasons on record
Soil Types: Historically compacted "tennis-court clay," now friable to 40mm when dry
Cropping Rotation: Wheat, Barley
Previous Practice: Broadcasting 200 to 300kg per hectare of urea
The project has generated
Project Highlights:
382 Australian Carbon Credit Units (ACCUs) issued under the ACCU Scheme
Nitrogen input costs cut to roughly 25 per cent of former levels using a biology-led fertiliser strategy
Achieved during one of the driest seasons on record, with wheat and barley yields at the top end of district averages for the season, off just 160mm of in-crop rain
Guilfoyle Carbon Project
Results
With AgriProve as the project aggregator, the Guilfoyle Carbon Project shows what eight years of steady practice change can build. Colin and Nathan Kemp reworked their whole nutrition system on heavy Mallee clay at Birchip, moving away from broadcast urea toward a combined synthetic and biological program, all while lifting crop performance rather than trading it away.
The 2025 season put that work to the test. Wheat and barley yields sat at the top end of district averages for the season, off just 160mm of in-crop rain, one of the driest seasons on record, and soil that was once compacted "tennis-court clay" is now friable to 40mm even when dry. The gains showed up in the paddock and at the bank, with the Kemps issued 382 ACCUs.
2025 GROWING SEASON: Kemps' Wheat and Barley Program
Colin and Nathan run a full LawrieCo input program across seed, planting, and foliar stages, cutting their nitrogen bill to about 25 per cent of its former cost with no loss in yield.
Seed Treatment: SureCROP VAM at 10 L per tonne
Planting Granules: 45 to 65 kg MAP with 20kg Vermi-Granules
Planting Liquids: 2L HumiPLEX ZMC, 3L BioMAX Boost, 35kg Dissolved SOA
Foliar Sprays (x3): 22kg Dissolved Urea, 2L HumiPLEX ZMC, 2L BioMAX Boost, 2L PhosCAL
Colin Kemp: "I spend more time on the boom now, but it's not poison I'm putting out. It's good nutrition for our crops and our soil microbes."
Project timeline
WHY AGRIPROVE
AgriProve uses data driven tools and unique financing mechanisms to make regenerative grazing accessible and profitable for farmers. Partnering with landholders and industry leaders to mutually benefit from carbon project success. Our unique ACCU success fee model removes the risk and creates a true partnership for the entirety of the project.
Utilising AgriProve’s innovative, digitally enabled Soil Organic Carbon (SOC) model project partners benefit from the expedited soil sampling and carbon crediting process.
““As a bonus, we’re rebuilding soil organic carbon and now accumulating carbon credits. The credits we’re generating will far exceed the emissions from our farming business.”
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