Cold Roots, Chilled Yields: Diagnosing Root Cold Stress in Hydroponics
Dr. Russell Sharp discusses cold root stress in hydroponics, how it causes desiccation and nutrient uptake problems, and practical mitigations like raising plants or grafting.
He reviews new research showing increased plant sterols can boost cold tolerance in tomatoes, and teases a follow-up story about Eli Lilly buying a Dutch greenhouse.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/
Univerity of Barcelona
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6:47
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6:47
Bankruptcy in Soilless Farming: Clean Greens and Growy Singapore Fall
Dr. Russell Sharp reviews two recent failures in soilless agriculture: Swiss aeroponics firm CleanGreens went bankrupt after a promised CHF 50M investment failed to materialize, and Growy Singapore—an 8,000 m² vertical farm taken over from a US operator—entered liquidation within a year due to high costs and insufficient local investment despite government support.
The episode looks at what went wrong, the impact on employees and technology, and notes Growy's Amsterdam site remains operational. Tune in for a concise breakdown and a preview of tomorrow’s episode on a cold-tolerant tomato variety.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/
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4:56
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4:56
Can Norway Grow Avocados? Inside the Hydroponic Experiment
Dr. Russell Sharp examines whether warm‑climate perennials like avocados can be grown economically indoors in cold countries. He reviews a Norwegian research trial using waste heat, cheap hydroelectric power, LED greenhouses, and micropropagation to produce local avocados, and discusses pollination, growth timelines, and energy costs.
The episode weighs the trade-offs between long production times and local quality/supply benefits, shares practical hydroponic lessons, and invites listeners to share unusual crops they’ve grown.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/
Yara
Oslo
Jonas Gahr Støre
Erna Solberg
Jens Stoltenberg
Erling Haaland
Martin Ødegaard
Ole Gunnar Solskjær
John Arne Riise
Svalbard
Agrinos
Nobel Prize
Jo Nesbø
Edvard Munch
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8:27
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8:27
Fertilizer Falsehoods: The Myth of 90+ Elements in a Fertiliser
Dr. Russell Sharp exposes claims that fertilizers contain 60–90+ elements, showing many listed elements are impossible, radioactive, or toxic and explaining that plants only need a small set of essential nutrients.
He evaluates sea-mineral and rock dust products, warns listeners to question extravagant element lists, and urges asking manufacturers to provide an exact element breakdown.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/
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10:20
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10:20
Larry Ellison’s $500M Hydroponic Dream: Sensai Farms’ High-Tech Failures
Dr. Russell Sharp examines Sensai Farms, Larry Ellison’s high‑profile hydroponic project in Hawaii, funded with hundreds of millions but hampered by cost overruns, design flaws, failing AI and robots, and unreliable power systems.
The episode covers how these problems drove up production costs, affected local access to affordable produce, and forced Sensai to pivot from large‑scale growing to licensing its technology, raising questions about tech solutions in agriculture.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/
Tony Blair
Sadiq Khan
Nigel Farage
Kemi Badenoch
Daily clips of hydroponic science throughout the whole of 2025
Presented by Dr Russell Sharp
Brought to you by the team behind Gold Leaf - seed to harvest with just one bottle of feed.
UK