This research investigates development and application of high-quality compost products derived from Food Organics and Garden Organics (FOGO) a soil remediation strategy to enhance urban soil health across Hepburn Shire Council (HSC). The study aims to define protocols for producing compost that exceeds, Australian Standard 4454 and to assess its effectiveness in improving soil conditions.
An applied science methodology used, integrating laboratory analysis with field sensor data to establish baseline soil health across five application typologies. Key parameters include soil microbiology, chemistry, moisture, and compaction, which are correlated with visual tree assessments to evaluate overall plant health. The research examines whether compost-enhanced remediation can lead to measurable improvements in soil biological diversity, nutrient balance, and physical structure, thereby supporting root development, chlorophyll production, and canopy vitality.
Field experiments encompass a range of soil health conditions, from established trees to new planting sites. Compost is applied both by incorporating into planting soils and by top-dressing existing root plates. Additionally, a value-added product—Actively Aerated Compost Tea (AACT), brewed from the high-quality compost— applied to mulched typologies to enhance decomposition, support root development, and improve overall soil and plant health.
The experimental design includes six replicates and four control plots across five typology sites, including significant locations such as the historic memorial trees in Wombat Hill Botanical Gardens, Drummond, and the Creswick Avenue of Honour in Kingston, Victoria's Central Highlands. The outcomes of this study will inform fit-for-purpose compost quality assurance protocols and provide evidence-based guidelines for urban soil remediation in Arboriculture contexts.