Compost Tea & Leaf Sap Analysis, explained by a Regenerative Farmer [Adrian Rubi]
Show notes
What happens when a farmer becomes a microbiologist? Adrian Rubi shares how compost tea, leaf sap analysis, and on-farm ferments can help you cut inputs, strengthen crops, and speed up your regenerative agriculture transition. From recipe design and dissolved oxygen to trace-element tweaks and manure management, this is soil microbiology you can actually use.
Why listen: Reduce fertilizer costs, improve plant health, and scale nature-based solutions with tools you can brew and measure on-farm.
Inside This Episode:
🌾 Transitioning the Swiss hillside farm: organic suckler cows, hazelnuts, and local feeds only.
🧪 Compost tea ≠ fertilizer: secondary metabolites, foliar benefits, and practical application rates.
⚙️ Brewer design that keeps biology aerobic and consistent (stainless steel, vortex flow, DO control).
🌿 Leaf sap analysis to target trace elements, avoid over-fertilizing, and keep photosynthesis high.
🧴 Ferments for manure pits and cover-crop mulch: fewer smells, healthier N cycling.
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Produced in partnership with Soil Capital, a company accelerating the regenerative transition by financially rewarding farmers who improve soil health & biodiversity.
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Usefull Links:
EDAPRO: https://edapro.ch/en/
ALTERHUS FARM: https://www.instagram.com/halterhus/
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