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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

3:42

Carnivorous Plants & Bonsai - a potential hack for...

Hydroponics Daily ·

2025/12/20

In this episode we examine why carnivorous plants and bonsai often struggle in coco grow media — coco (coir) can contain high sodium and is frequently buffered with calcium nitrate, resulting in elevated calcium and nitrogen compared with peat.The host suggests a fix: use raw high-sodium coco and flush it with Liquid Gypsum (calcium sulfate) to remove sodium without adding nitrogen, creating a peat-free grow medium suited to carnivorous plants and bonsai and a potential niche business

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8:19

Alternatives to Dosatrons: Which Fertigation Tool Wins?

Hydroponics Daily ·

2025/12/19

In this episode Dr. Russell Sharp explains how dosatrons work and compares practical alternatives for run‑to‑waste hydroponic systems, including Venturi injectors, electric metering pumps, and simple fertigation tanks. He outlines the pros and cons of each option — cost, accuracy, power needs, maintenance, and scale — and covers considerations about recirculation, environmental impact, and regulatory risk. Ideal for growers choosing the right dosing method for medium to large greenhouse

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9:32

How to Save Virus-Infected Varieties; Thermotherapy...

Hydroponics Daily ·

2025/12/18

Hello there, and welcome back to Hydroponics Daily, your go-to podcast for everything soilless cultivation. I am your host, Dr. Russell Sharp, the founder of Eutrema Limited, a company that makes truly unique fertilizers, biostimulants, and biopesticides that you won't find anywhere else. The technology is completely unique. And today, the topic of the podcast is what I would do if I was faced with a virus in my crop. Specifically a crop where you want to protect the genetic material and you can't

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12:46

Perennial Cereals: Are Kernza and Perennial Rice the...

Hydroponics Daily ·

2025/12/17

Dr. Russell Sharp explores the growing interest in perennial arable crops like Kernza, perennial rice and sorghum, explaining their environmental benefits, current commercial status, and the agronomic challenges they face.The episode also discusses breeding and gene-editing opportunities to improve yield and resilience, and considers how perennial grains might fit into hydroponic and niche high-value markets. https://eutrema.co.uk/ Maqsood Ali Wagan — Sindh Agriculture University Farhan Ali Wagan —

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7:03

Dosatron Secrets

Hydroponics Daily ·

2025/12/16

Dr. Russell Sharp explains how Dosatrons (water-powered dosing pumps) mix concentrated fertilizer like Gold Leaf/Liquid Gold into fertigation systems, describing the piston-driven mechanism, proportional injection, and why it maintains a constant concentration despite flow changes. The episode covers practical setup tips for off-grid hydroponics — solenoids, drippers, solar pumps, and how a Dosatron enables accurate, electricity-free dosing, along with limitations (not for powders, pressure loss,

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6:55

Cut-and-Come-Again: Hydroponic Hype vs. Reality

Hydroponics Daily ·

2025/12/15

Dr. Russell Sharp of Hydroponics Daily breaks down the truth behind "cut-and-come-again" vegetables and viral social media hacks, explaining which crops genuinely regrow and which claims are misleading. Learn which leafy herbs and greens can be harvested multiple times, why most bulky vegetables won’t produce a marketable second crop, and when starting fresh is a better option for consistent yields. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/ Holly Wolf - Wolf of

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4:16

Glycerin: Flower preservation suitable for hops and...

Hydroponics Daily ·

2025/12/14

Dr. Russell Sharp explores advanced preservation methods for flower crops; from freeze-drying and glycerin sap replacement to citric acid treatments used for hops,cand how these techniques can create premium, display-ready products for shops, dispensaries, and e-commerce.This episode offers practical ideas for ornamentals and specialty growers looking to add high-value, long-lasting products to their lineup. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/ Ryan

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9:11

Dates for your diary for 2026 in Hydroponics:...

Hydroponics Daily ·

2025/12/13

Dr. Russell Sharp outlines the key 2026 dates affecting hydroponic growers (equinoxes, longest day) and recommends major trade shows and conferences worldwide — from IPM Essen and Fruit Logistica to Greentech Amsterdam, Indoor AgCon and MJBizCon.He also highlights UK and crop-specific events, tips for timing indoor grows, and invites listeners to suggest other shows for an updated diary. Tue–Fri 27–30 Jan 2026 — IPM ESSEN (Essen, Germany) IPM ESSEN Wed–Thu 11–12 Feb 2026 — Indoor Ag-Con (Las

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7:25

The Hydrogen Peroxide Clash Rocking European Hydroponics

Hydroponics Daily ·

2025/12/12

Dr. Russell Sharp discusses the struggle of the UK and European hydroponic sector, focusing on recent enforcement in the Netherlands over continuous in-line dosing of hydrogen peroxide. He explains why regulators flagged the practice, the science behind peroxide breakdown, and his frustration with overly rigid enforcement.Russell also offers practical advice: avoid continuous peroxide dosing to protect roots and yields, keep systems clean, and use peroxide sparingly. He reflects on the wider impact

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9:11

E‑Commerce Strategies for Hydroponic Growers

Hydroponics Daily ·

2025/12/11

Dr. Russell Sharp discusses e-commerce strategies for hydroponic businesses, advising against competing in commodity leafy greens and recommending niche, high‑value preserved products like freeze‑dried herbs, pickles, and gourmet fermented goods. He outlines marketing channels (social ads, trade shows, brand storytelling), logistics considerations (cold chain vs preserved goods), alternatives like ornamentals and cut flowers, and cautions about high costs and platform pitfalls such as selling on

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9:28

Bootstrap to Success: Ditch credit for your customers

Hydroponics Daily ·

2025/12/10

Dr. Russell Sharp explains why bootstrapping is the best route for many hydroponic ventures, emphasizing unique products, testing market demand, and protecting cash flow.He warns against offering customer credit—suggesting pro forma payments and using strong order books to secure bank loans if scaling is needed—plus practical tips for long-term sustainability. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/ Geoffrey Guy Brian Whittle Justin Gover Tom Whettem Adam

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6:09

Solenoids & Drippers: Master Hydroponic Water Flow

Hydroponics Daily ·

2025/12/09

Dr. Russell Sharp breaks down how water is controlled in hydroponic systems: pressure‑regulated drippers set the flow rate, spikes only deliver the water, and solenoid valves control timing. He explains why pipe size matters little, how blockage and water hardness affect drippers, and why pH or RO water are common choices.This short episode also previews dosing and fertigation meters to be covered next, and offers practical tips for automating reliable

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7:05

Egypt’s Greenhouse Push: Army-Driven Hydroponics vs...

Hydroponics Daily ·

2025/12/08

Dr. Russell Sharp explores Egypt’s push into large-scale greenhouse and hydroponic production, driven in part by the military, and compares it to Morocco’s desalination-led expansion of fresh produce. The episode covers greenhouse construction, water supply challenges, berry and high-value crop ambitions, and how military involvement affects local agriculture and supply chains. It examines implications for food security, competition between countries, and the potential benefits and drawbacks of

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6:21

Don't Feed Dormant Plants: The Hidden Nitrite Danger

Hydroponics Daily ·

2025/12/07

Dr. Russell Sharp explains why you should drastically reduce or stop fertilizing perennial crops during winter dormancy or cold storage. Plants take up little or no nutrients in cold conditions, and added nitrogen—especially ammonium—can convert to toxic nitrites that harm cellular respiration, photosynthesis and root health.He recommends dialling fertiliser back to near zero during dormancy, avoiding ammonium-based formulations in cold media, and resuming accurate dosing only when plants are

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4:49

Lease to Grow: The Rise of Rental Hydroponic Systems

Hydroponics Daily ·

2025/12/06

In this episode Dr. Russell Sharp explores leasing and rental business models for hydroponic systems—ranging from small kitchen towers to commercial vertical farms—covering potential revenue streams, financing advantages, turnkey options for growers, and the practical risks involved. He highlights examples from the industry, discusses who benefits from rentals, and invites listeners to share their experiences or case

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9:30

Rats in the NFT: Rodents, Risks and Hydroponic Safety

Hydroponics Daily ·

2025/12/05

Dr. Russell Sharp of Utrema discusses a striking Facebook post—an AI image of rat droppings on an NFT lettuce system—and asks whether rodents are a real threat in hydroponics.The episode covers the main risks rodents pose: disease transmission (salmonella, leptospirosis, hantavirus), contamination of recirculating fertigation solutions, crop damage, and quality/safety losses. Practical control advice is offered using an integrated pest management approach: seal entry points, install fine mesh on

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4:23

Hidden Hydroponics: How Cosmetics Brands Quietly Grow...

Hydroponics Daily ·

2025/12/04

Host Dada Russell-Sharp of Hydroponics Daily explores how hydroponics and vertical farming are widely used by non-food companies—especially cosmetics and fragrance brands—to grow active ingredients, herbs, and flowers for skincare and perfumes.The episode highlights companies in France, the US, and South Korea (including L'Oréal, Ule, Plant Advanced Technologies, and Therminic) and points out surprising uses like perfumery, medicinal herbs, and clean hydroponic skincare

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7:18

Growing the Impossible: Hydroponic Crops the UK Can't...

Hydroponics Daily ·

2025/12/03

Dr. Russell Sharp explores crops that struggle outdoors in the UK due to short, cool seasons and shows how hydroponics or protected cultivation can make them viable. He discusses sweet potato slips, cotton, jute, castor bean, rice trials, peanuts, melons, chillies and more, plus business opportunities for growers and the effects of climate change on crop potential.Listeners will learn which crops need grow rooms or greenhouses, which might be trialed outdoors, and ideas for commercial hydroponic

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7:58

Hydroponics on Display: 8 Botanical Gardens to Visit

Hydroponics Daily ·

2025/12/02

Dr. Russell Sharp tours botanical gardens around the world that feature hydroponic and aquaponic displays, from Pittsburgh and Dallas to Bethlehem, Malaysia, Dresden, Baghdad, and Irkutsk.The episode highlights these sites as educational and STEM-focused exhibits, emphasizes hydroponics' water-saving benefits, and invites listeners to suggest other gardens for future episodes. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/ Royal Botanic Gardens, Kew – Richard

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7:07

Cardoon: The High‑Value Hydroponic Crop Michelin...

Hydroponics Daily ·

2025/12/01

Dr Russell Sharp of Hydroponics Daily explores cardoon, a giant thistle related to globe artichoke, as a lucrative hydroponic crop ideal for small to medium grow rooms and a strong alternative to cannabis. He outlines the crop’s fast growth and large biomass, year‑round production potential under controlled conditions, easy propagation from rhizomes, and culinary demand from Lyonnaise and Michelin‑star kitchens. He also touches on pests to watch for and practical benefits of soilless

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355 results

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