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PODCAST

Hydroponics Daily

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.

leisure home & garden

All Episodes

13:39

Mylar vs Matt White: The Truth About Grow Tent...

Hydroponics Daily ·

2025/09/03

Dr. Russell Sharp explains how different grow tent materials — metallized PET/mylar, white films, panels and paints — affect reflectivity, light uniformity and photosynthetic efficiency, and why common assumptions (mirror-like is best) can be misleading.He also shares a bold experiment: cladding a new grow room in dark maroon matte paint to optimize video contrast for microgreens, and teases future episodes on red:far‑red ratios and other lighting

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9:29

Hydroponics Daily: No Soviet Secret Labs — Just Space...

Hydroponics Daily ·

2025/09/02

Dr. Russell Sharp presents a brief Hydroponics Daily update covering myths about Soviet hydroponics, unusual crops like dragon fruit and the Annona family, and a botanical note about magnolia tepals.He reviews England’s move to allow gene-edited crops from 2026, a Wrexham University project growing ‘space pizza’ ingredients with schools, and his ongoing microgreens and seed experiments. Listeners are invited to send questions or comments for future roundup

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9:13

Green Hope in the Aral Desert: Hydroponics Feed the...

Hydroponics Daily ·

2025/09/01

Dr. Russell Sharp examines a UNDP-led hydroponics project in the Aral Sea region that grows fast, soilless wheat and alfalfa fodder to address polluted, infertile land and livestock feed shortages. The episode covers the simple LED-and-tray systems, rapid harvest cycles, nutritional gains for animals, women-led household adoption, Japanese funding, and the project’s social and environmental benefits. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/

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8:08

Whitefly Secrets Part 2 : Life Cycle, Damage & Control

Hydroponics Daily ·

2025/09/01

Dr. Russell Sharp explains the whitefly life cycle, why they hide under leaves and how to control them in hydroponic systems. He also shares microgreen hydroponic tips and the importance of removing plant material to break pest life cycles. https://eutrema.co.uk/shop/pesticides-organic/eutrema-insecticidal-soap-sodium-free/

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8:23

Whitefly Part 2

Hydroponics Daily ·

2025/08/31

The fascinating (if rather creepy) lifecycle of Whiteflies.No AI transcript today unfortunately... https://eutrema.co.uk/shop/pesticides-organic/eutrema-insecticidal-soap-sodium-free/

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10:33

Whiteflies Part 1: Protect Your Grow

Hydroponics Daily ·

2025/08/30

Dr Russell Sharp explains what whitefly are, why they threaten greenhouse and outdoor hydroponic crops, and how to detect them early. The episode covers monitoring methods, prevention (filters, airflow, sanitation), biological controls like Encarsia formosa, and selective chemical options including insecticidal soaps and rotation strategies. https://eutrema.co.uk/shop/pesticides-organic/eutrema-insecticidal-soap-sodium-free/

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13:37

Sodium: The Silent Killer in Hydroponics

Hydroponics Daily ·

2025/08/29

Dr. Russell Sharp explains why sodium is highly toxic to plants, how it damages cellular functions, causes nutrient imbalances and reduces yield, and why osmotic stress is not the only issue. He outlines common hidden sources of sodium in hydroponics — low-grade fertilizers, micronutrient chelates, grow media, water sources, insecticidal soaps and recycled inputs — and gives practical advice to avoid sodium contamination (use high-purity ingredients, potassium bicarbonate, and proper media buffering

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06:21

From Vertical Farm to Field: A Harsh Lesson in...

Hydroponics Daily ·

2025/08/28

Dr. Russell Sharp shares a Liverpool tour and a farmer's rhubarb story that highlights how fragile indoor-grown plants can be when transplanted outdoors.The episode outlines why hardening off and weaning are critical for plants moving from hydroponic or vertical systems to field cultivation, and offers practical takeaways to avoid transplant shock. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/

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09:08

Hello Darkness, My Microgreens' friend: Embracing the...

Hydroponics Daily ·

2025/08/27

Dr. Russell Sharp explains why deliberately growing microgreens in darkness produces taller, sweeter, and easier-to-harvest seedlings. He shares observations from trials with basil, mustard, pea shoots, spring onions and more, and explains how etiolated growth converts seed starches into sugars for better flavour.The episode also covers practical tips and trade-offs for small-scale production. https://eutrema.co.uk/

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05:21

Free Hydroponics Samples — Review on Apple Podcasts...

Hydroponics Daily ·

2025/08/26

Dr. Russell Sharp invites listeners to Hydroponics Daily to get a free sample in exchange for an Apple Podcasts review — just screenshot your review and email it to him to claim a product.Available samples include humic acid concentrate, dechlorinator, Sticky Fingers cleaner and Clear Mist humidifier treatment; international listeners can still participate with shipping arranged when the host visits their country. Short-term offer; terms may apply. https://eutrema.co.uk/

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25:30

Growing Crops on Mars: Hydroponics Beyond Earth

Hydroponics Daily ·

2025/08/25

In this episode Dr. Russell Sharp explores the practical science of growing crops on Mars — water sources and site choices, lighting and power options, and why indoor, LED‑lit hydroponics (NFT, aeroponics) is most likely. He examines Martian regolith as a potential grow medium (nutrient content, perchlorates and removal methods), atmospheric challenges, closed‑loop recycling, automation and 3D‑printed systems. The episode closes with priority crop choices (potatoes, leafy greens, microgreens,

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12:48

Beat the Bloom: Practical Algae Control for...

Hydroponics Daily ·

2025/08/24

Dr. Russell Sharp of Eutrema Limited breaks down why algae is a problem in hydroponic and greenhouse reservoirs—how it competes for nutrients and oxygen, clogs lines, and risks crop and food-safety issues. He compares small-scale cleaning methods with the challenges of large-volume systems.The episode outlines chemical sterilisation options (hydrogen peroxide, peracetic acid, chlorine dioxide), what to avoid (copper, bleach, quats), and non-chemical solutions like ultrasound, UV/ozone and Eutrema’s

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10:50

Who’s Steering Hawthorne? The Mysterious Buyout of...

Hydroponics Daily ·

2025/08/23

This episode of Hydroponics Daily unpacks the rise of Hawthorne Horticulture, a Scotts Miracle-Gro subsidiary (Hagedorn family) that bought major hydroponic brands like Gavita, General Hydroponics and Botanicare, and the controversies that followed. We explore post-lockdown decline, Scotts’ strategy to move Hawthorne off its balance sheet into an opaque independent partner (now Hawthorne Collective), questions about who now runs it, legal disputes around lighting, environmental concerns, and what

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05:30

Belgium's Hydroponic Leek Leap: 3,000 m² Farm in Ypres

Hydroponics Daily ·

2025/08/22

Dr. Russell Sharp explores a new 3,000 m² commercial hydroponic leek facility in Ypres, Belgium, developed by Agro Reo, Hydromasters and Endura with VLEA and EU support.The outdoor deep-water system promises faster cycles, reduced soil-borne disease, closed-loop water and automated harvesting, enabling soil-free exports and competition with traditional field-grown leeks. https://eutrema.co.uk/shop/biostimulants/sea-silica-silicon-fertiliser/

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05:04

Game-Changer for Growers? Nordetect’s Handheld...

Hydroponics Daily ·

2025/08/21

Dr. Russell Sharp reviews Nordetect’s upcoming handheld tester that measures nitrogen, phosphorus, potassium, calcium, magnesium and sulfur in fertigation streams using a patented agrochip plus spectrophotometry, delivering lab-level results in about three minutes instead of days.https://www.nordetect.com/ The episode explains how the device could enable real-time nutrient monitoring, integrate with specialist software, help growers verify fertilizer claims, and potentially expose diluted or

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06:39

When Automation Fails: Heatwave Scorches Greenhouse...

Hydroponics Daily ·

2025/08/20

Dr. Russell Sharp discusses how environmental automation can help grow rooms and greenhouses — and what happens when it breaks. He recounts a Dutch grape nursery where vent failures during a heatwave pushed temperatures over 50°C (122°F), ruining about 95% of the harvest, and an orchid grower who lost roughly 75% of his crop after a power outage disabled vents and shade systems.The episode underlines the need for fail-safes, backup power, and contingency planning for automated systems, and notes

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09:55

Bee UNFRIENDLY Plants: when flowers turn toxic

Hydroponics Daily ·

2025/08/19

Dr. Russell Sharp explores the surprising world of bee-unfriendly plants — species whose nectar or flower structure can harm bees or taint honey. Examples discussed include rhododendron and Kalmier (gravinotoxin), the strawberry tree (arbutin), tulips and lime (toxic sugars), nicotine-laced tobacco, and double/ornamental flowers that block pollinators.The episode also considers theories for why plants produce toxic nectar (defense, limiting nectar intake, or intoxicating pollinators) and highlights

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08:47

Live Births in Plants: The Strange Science of Vivipary

Hydroponics Daily ·

2025/08/18

Dr. Russell Sharp explains vivipary, a rare form of plant propagation where seeds germinate while still attached to the parent plant, producing plantlets that drop off ready to grow. The episode covers causes (low ABA/high moisture), examples (mangroves, Kalanchoe, alliums, carnivorous plants, tomatoes, cannabis), differences from false vivipary, and practical implications for hydroponic growers. https://eutrema.co.uk/shop/organic-fertilisers/seaweed-extract-cold-processed/

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06:49

Sea Urchin Biostimulants: A New Trend for Hydroponics?

Hydroponics Daily ·

2025/08/17

Dr. Russell Sharp explores recent research into biostimulants made from sea urchins—created to reduce urchin overpopulation in kelp forests and potentially used in hydroponics. The episode compares sea urchin products to traditional seaweed extracts, discusses variable growth results (lettuce trials), sustainability and regulatory concerns, and concludes seaweed extracts currently outperform sea urchin biostimulants for plant

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04:41

Revolutionizing Tomato Harvesting: AI and Aeroponics...

Hydroponics Daily ·

2025/08/16

Explore the innovative world of soilless cultivation in this exciting episode of Hydroponics Daily. Dr. Russell Sharp delves into the state-of-the-art SAIA agro-robotics greenhouse located in the Dutch countryside, showcasing its cutting-edge aeroponic system designed for growing tomatoes without traditional media.Witness the fascinating process where tomato plants, supported by twine and moved via conveyor belts, are harvested by AI-controlled robotic pickers. This breakthrough approach

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367 results

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