Hydroponics Daily

Florigen - The Flowering Hormone

In this episode of Hydroponics Daily, Dr. Russell Sharp delves into the fascinating world of florigen, the elusive hormone responsible for flowering in plants. Drawing from his extensive research, particularly on rhododendrons, Dr. Sharp explores the complexities and breakthroughs surrounding florigen's discovery. He discusses the role of the FT protein in Arabidopsis, the intriguing concept of anti-florogens, and the potential impacts of synthetic florigen on agriculture and conservation. Join Dr. Sharp as he unravels the secrets behind plant flowering, offering insights into how this knowledge might revolutionize the way we cultivate both ornamental and edible crops.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser

Carcinogenic Fertilizers - A secret scandal

In this eye-opening episode of Hydroponics Daily, Dr. Russell Sharp sheds light on the alarming use of carcinogenic fertilizers in agriculture, particularly in North America. He highlights the dangers posed by cobalt and nickel-based products, which remain in the environment indefinitely, posing significant health risks. Dr. Sharp calls for awareness and action, encouraging listeners to help expose this global issue and ensure safer farming practices.
Email russell@eutrema.co.uk to help fight this!

What does 'senescence', 'necrosis', 'abscission', and 'chlorosis' mean?

Welcome to Hydroponics Daily with Dr. Russell Sharp! In this enlightening episode, we delve into the intricate world of plant health, focusing on four key terms crucial for diagnosing leaf issues in hydroponics: chlorosis, senescence, abscission, and necrosis. Understanding these terms is essential for identifying and addressing nutrient deficiencies and environmental stressors that affect plant vitality.
Chlorosis, characterized by the yellowing of leaves, often signals a nutrient deficiency such as nitrogen or iron. Senescence, the browning and dying off of leaves, can be a natural process or a result of dry soil and high fertilizer conductivity. Abscission, where leaves drop off still green, often occurs due to oxygen deprivation in the roots. Lastly, necrosis, the blackening of leaf tissues, signals calcium deficiency, notably in crops like tomatoes and lettuce.
Join Dr. Sharp as he clarifies these scientific terms, helping you better understand the complex interactions in your hydroponic system and improve your crop's health. Tune in and share this valuable knowledge with fellow hydroponics enthusiasts!
 
https://eutrema.co.uk/

Seed Sterilization in Hydroponics

Welcome to Hydroponics Daily! In this episode, we delve into the significance of seed sterilization for hydroponic growers. As we embrace our growing North American audience, we discuss crucial topics like quarantine practices and the importance of sterilizing seeds to prevent diseases, pests, and other issues that can arise from unreliable seed suppliers.
We explore various seed sterilization methods, including acid scarification and hot water treatment, highlighting how these techniques not only ensure cleanliness but also aid in seed germination. Discover the role of ethanol and more advanced technologies such as plasma and UV light treatments in promoting seed health. With a humorous nod to spelling debates, this episode is a comprehensive guide for anyone looking to optimize their hydroponic growing practices.
 
https://eutrema.co.uk/

Quarantine - Preventing Invisible Invaders

In this episode of Hydroponics Daily, Dr. Russell Sharp dives into the essential practice of quarantining plants when introducing them to your indoor growing setup. Discover why even the cleanest-looking cuttings could be harboring pests and diseases, and learn about practical quarantine methods to protect your grow room or greenhouse. Dr. Sharp shares insights from his experiences at Lancaster University's Environment Center, highlighting the risks and preventative measures to keep your plants healthy and pest-free. Whether you're a small grower or managing a research facility, this episode will guide you through the critical steps of plant quarantining to safeguard your hydroponic system.
https://eutrema.co.uk/
 

Spring Onions and Hops: Revolutionizing Hydroponics in 2025

Welcome back to Hydroponics Daily. Join Dr. Russell Sharp, the inventor of liquid gold fertiliser, as he delves into the fascinating world of hydroponics and shares his focus for 2025. In this episode, Dr. Sharp unveils his plans to revolutionize the cultivation of spring onions and hops through innovative methods and cutting-edge biostimulants.
Discover how the unique chemistry of alliums can be enhanced with sulfur-rich fertilisers, and why spring onions may soon be a staple British crop grown hydroponically, eliminating the need for imports. Dr. Sharp also tackles common challenges like flaccid spring onions in the UK and offers solutions through advanced agricultural techniques.
Turning his attention to hops, Dr. Sharp shares the inspiring success story of a customer who became Hop Grower of the Year using their biostimulants. With plans to assist in propagation and optimize growing conditions, Dr. Sharp is on a mission to transform hop cultivation in the UK.
Tune in to learn more about these exciting projects and explore the promising future of hydroponics under Dr. Sharp's expertise.
 
www.eutrema.co.uk

Reusing Growing Media

In this episode of Hydroponics Daily, Dr. Russell Sharp delves into the realm of reusing growing media. Discover the environmental and economic benefits of reusing substrates, the challenges posed by residual salts, and methods to lower electrical conductivity for healthy plant growth. Explore solutions for managing root-bound media and learn how worms and composting can transform old substrate into nutrient-rich soil. Highlighting the complexity of reusing synthetic media like rockwool, Dr. Sharp offers insights into sustainable practices and invites listeners to consider future innovations in growth media reuse.

Notching and Nicking - Mastering Plant Architecture

Welcome back to Hydroponics Daily with Dr. Russell Sharp! In this episode, we dive into the innovative techniques of notching and nicking, essential for hydroponic growers looking to optimize plant architecture. Discover how these methods can be a game-changer, especially for those cultivating auto-flowering varieties or plants where strategic growth direction is crucial.
By understanding and applying notching, you can control which branches grow and when, without sacrificing the apical bud. Learn how this approach avoids the drawbacks of traditional apical bud removal, ensuring your plants develop with increased branching opportunities and optimal exposure to light and air. Whether you're growing tomatoes or other sensitive crops, this episode is packed with insights on harnessing the power of auxin manipulation to maximize your garden's potential.
Join Dr. Sharp as he explores this modern gardening science, offering tips and tricks to transform your hydroponic setup into a flourishing, efficient paradise. Have you tried notching yet? Share your experiences and let us know how it worked for you!

Glasshouses / Greenhouses

Welcome to Hydroponics Daily with Dr. Russell Sharp as we delve into the fascinating world of glasshouses. Learn why these structures, often referred to as greenhouses, offer superior growing conditions compared to polytunnels due to their ability to better manage infrared and ultraviolet light.
Discover the advantages of controlling the environment with automated features like self-opening vents and lighting, which make glasshouses the most adaptable outdoor growing spaces. In this episode, Dr. Sharp shares insights into his own 30-year-old cedar glasshouse and explains the benefits of materials like aluminum and modern designs such as the Venlo glasshouses.
Understand how glasshouses extend the growing season and improve crop quality with added CO2 and precise heating methods. Whether using electrical heaters or innovative solutions like water-filled bottles for temperature regulation, the potential for optimized plant growth in a glasshouse is vast.

Ozone

Welcome to Hydroponics Daily with Dr. Russell Sharp, as we delve into the fascinating world of ozone—a double-edged sword in our environment. While the ozone layer high up in the stratosphere serves as our shield against harmful UV rays, its presence in the lower troposphere poses a significant threat to both human and plant health, especially in urban areas.
In this episode, Dr. Sharp discusses the unintended shift towards hydroponic farming following the ban on methyl bromide, a move that played a part in preserving the ozone layer. However, the challenges remain as urban ozone levels contribute to photochemical smog, impacting both plants and people. With insights ranging from historical figures like Margaret Thatcher to the ubiquitous yet resilient plant Buddlejia in the Doctor Who universe, Dr. Sharp sheds light on how some plants thrive despite ozone's adverse effects.
Join Dr. Sharp as he explores practical measures such as using activated charcoal filters to mitigate ozone's impact in grow rooms, particularly during warm, still urban conditions. Discover how certain plants exhibit remarkable tolerance to ozone, and learn about the innovative approaches in hydroponics that could shape our urban landscapes in the future.