Hydroponics Daily

The Kratky Method: Is it all it is kracked up to be?

Welcome to Hydroponics Daily with Dr. Russell Sharp! In today's episode, we dive deep into the Kratky method of hydroponics, a unique system that requires no pumps or electricity. This passive, non-circulatory technique, developed by Dr. Bernard Kratky at the University of Hawaii, provides a minimal intervention approach to soilless cultivation.
Listen as Dr. Sharp discusses the benefits and limitations of this simple, low-cost method, ideal for fast-growing, small plants like lettuce and basil. Despite its straightforward nature, the Kratky method poses challenges such as potential algal growth and nutrient imbalances, making it crucial for growers to be cautious.
Whether you're a hobbyist, a teacher introducing students to root development, or someone challenged by limited space and resources, this episode offers valuable insights into how this method could fit your needs. Explore its potential applicability in educational, urban, and off-grid settings, and learn how it might serve as a stepping stone to more advanced hydroponic systems.
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Dechlorination - the simplest yield hack!

In this episode of Hydroponics Daily, Dr. Russell Sharp explores the often-overlooked topic of dechlorinating tap water for hydroponic farming. Discover why chlorine, while beneficial for drinking water safety, poses significant risks to your plants and hydroponic systems.
Learn the science behind the negative impact of chlorine and chloramines on plant health, including the suppression of beneficial microorganisms crucial for soil biology. Dr. Sharp discusses the geographical variations in chlorine levels and identifies common plants that are particularly sensitive to chlorine exposure.
Explore practical solutions for removing chlorine from your water supply, including letting water sit, using aeration, and employing activated carbon filters. Dr. Sharp also introduces specialized dechlorination products, providing a comprehensive guide to protecting your plants and improving yield.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/

Powdery Mildew - The main fungal disease of hydroponics

Welcome back to Hydroponics Daily! In today's episode, we delve into the pervasive issue of powdery mildew that plagues both grow room and greenhouse hydroponics. As the most common fungal disease in soilless cultivation, powdery mildew presents unique challenges, appearing as a white growth on leaves and exacerbated by high humidity and crowded environments.
Listen in as we explore the biology of this biotrophic fungus, its conditions for growth, and effective control measures. Discover how certain preventative strategies, such as quarantining new plant material and exploring biofungicides like chitosan, can keep your hydroponic systems healthy and productive.
We also discuss breeding for disease resistance and why some common remedies might not be as effective as believed. Whether you're a seasoned grower or new to hydroponics, this episode offers insights and practical tips to safeguard your plants from powdery mildew threats.
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Hydroponic Saffron Cultivation

Welcome back to Hydroponics Daily! In this episode, we explore the fascinating world of saffron cultivation through hydroponics. Saffron, a highly valued spice, is grown from the stigmas and styles of the crocus flower. Our host delves into the science and process of growing saffron hydroponically, highlighting its potential for high value returns due to the efficient use of space in vertical farming.
Discover how saffron’s unique growth cycle can be managed to potentially increase crop yields throughout the year. Learn about the challenges of managing pests like mites and bulb rot, and the innovative solutions being employed in places like Iran and America to boost production. Whether you’re a seasoned grower or a curious novice, this episode provides valuable insights into the world of hydroponic saffron farming.
https://eutrema.co.uk/shop/organic-fertilisers/seaweed-extract-cold-processed/

Silicon in Hydroponics

In this episode of Hydroponics Daily, host Dr. Russell Sharp explores the vital yet often overlooked element of silicon in hydroponics. Discover how silicon strengthens cell walls, enhances plant stress resistance, and acts as a natural deterrent to pests. While not considered an essential nutrient, silicon proves to be a game changer in hydroponic systems, particularly for plants such as grasses and bamboos. Learn about the benefits of silicon, its role in boosting trichome production, and the importance of using silicon additives in soil-less growing media. Prepare for next week's explosive episode where Dr. Sharp will reveal surprising truths about silicon fertilizers.
https://eutrema.co.uk/shop/biostimulants/sea-silica-silicon-fertiliser/

Hydroponic System Options: Recirculatory vs Run-to-Waste

Welcome to Hydroponics Daily, your ultimate source for soilless and sustainable gardening insights. In this episode, Dr. Russell Sharp, the inventor of Gold Leaf Fertiliser, dives into the debate between recirculatory and run-to-waste hydroponic systems. Discover the ins and outs of closed-loop systems, known for water efficiency and nutrient reuse, and compare them to simpler run-to-waste systems that offer ease of management and simplicity. Dr. Sharp provides a balanced view of the advantages and challenges of each, helping both commercial and amateur growers make informed decisions. Tune in to learn how to maximize efficiency, reduce environmental impact, and choose the best system for your crops.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/

Growing Media Options - trial update

Join Dr. Russell Sharp in this episode of Hydroponics Daily as he discusses the surprising results of a recent trial comparing different growing media for spring onions. Despite initial setbacks with coco as a substrate, it emerged as the top performer in germination tests. Dr. Sharp explores the role of water holding capacity in the success of hydroponic systems and delves into future trials with fertilizers and additives to enhance spring onion growth. Whether you're a hydroponics enthusiast or new to the field, this episode provides valuable insights into optimizing growth media for successful crops.
Sneak a peek at the trial results and tune in for exciting developments at the upcoming GreenTech event in Amsterdam, where hydroponics enthusiasts from around the globe gather to share knowledge and innovation.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/

The Dirty Secrets of Organic Fertilizers in Hydroponics

In this episode of Hydroponics Daily, Dr. Russell Sharp explores the intricate world of organic fertilizers and their place in hydroponic systems. As the inventor of Gold Leaf Fertilizer—also known as Liquid Gold in the UK—Dr. Sharp delves into why hydroponics is conventionally not considered organic, due to its soilless cultivation method.
The discussion covers the controversies and allowances within organic farming regulations, particularly focusing on the use of fish emulsion, seaweed extracts, and other plant and animal byproducts. Dr. Sharp highlights the benefits and environmental considerations of different fertilizer components, while also addressing the moral complexities faced by organic growers who are vegetarians or vegans.
Join Dr. Sharp as he shares insights into sustainable practices, the drawbacks of certain common fertilizers, and the pursuit of a balanced, biorational approach in the evolving field of hydroponics.
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Sunlight for hydroponic lighting in greenhouses and polytunnels

Welcome to Hydroponics Daily with Dr. Russell Sharp. In today's episode, we explore the benefits of using sunlight as the original grow light for your hydroponic setups, whether in greenhouses or polytunnels. Discover how to optimize sun exposure, considering factors like geography, shading, and photoperiodicity, to enhance photosynthesis and plant growth naturally.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/

LED Lighting in Hydroponics

Welcome to another episode of Hydroponics Daily! Join Dr. Russell Sharp as he delves into the world of LED lighting, a pivotal element in modern hydroponic setups. Discover why most growers are transitioning from traditional lighting methods to energy-efficient LEDs, which promise lower power consumption, extended lifespan, and targeted light spectra to optimize plant growth. Learn about the pros and cons of LED use, potential cost implications, and tips for choosing the right LED system for your indoor garden. Whether you're a seasoned hydroponic grower or just starting, this episode offers valuable insights into making the best lighting choices for sustainable agriculture.
https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/