Hydroponics Daily

• Solenoids & Drippers: Master Hydroponic Water Flow

  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 irrigation. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/   Gotham Greens FresH2O Growers Thanet Earth The Green House Ely The Green House Sussex Village Farms International Vertical Harvest Farms Eden Green Technology Plenty AeroFarms GoodLeaf Farms Just Vertical ZipGrow Harvest Today Freight Farms Smallhold Elevate Farms Raiz Vertical Farms Eden Grow Systems Homer Farms Growponics Ltd. Novagric Greener Crop Inc. Levo International Bowery Farming BrightFarms Kalera Infarm Crop One Holdings Iron Ox 80 Acres Farms Green Sense Farms Sky Greens Agritech Nordic Agricool Agrilution Systems Autogrow Systems Green Spirit Farms Farm.One Nordic Harvest SPREAD Co., Ltd. Pure Green Farms Red Sun Farms Eurofresh Farms Swiss Leaf Farms Planet Farms Future Crops Urban Crop Solutions Infinite Acres NatureFresh Farms

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• Egypt’s Greenhouse Push: Army-Driven Hydroponics vs Morocco’s Desalination Boom

  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 soilless cultivation when pursued at national scale. https://eutrema.co.uk/shop/ Tutankhamun Cleopatra Ramses II Nefertiti Imhotep Hatshepsut Omar Sharif Umm Kulthum Taha Hussein Naguib Mahfouz Gamal Abdel Nasser Anwar Sadat Mohamed Salah Dalida Amr Diab Ahmed Zewail Saad Zaghloul Boutros Boutros-Ghali Youssef Chahine Farouk Hosni

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• Don't Feed Dormant Plants: The Hidden Nitrite Danger

  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 actively growing or in heated environments. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/ Rattan Lal – Ohio State University Asmeret Asefaw Berhe – U.S. Department of Energy, Office of Science Johan Six – ETH Zürich Diana H. Wall – Colorado State University Johannes Lehmann – Cornell University Yakov Kuzyakov – University of Göttingen Noah Fierer – University of Colorado Boulder Mark A. Bradford – Yale University Franciska de Vries – University of Amsterdam Claire Chenu – INRAE / AgroParisTech Lorna Dawson – James Hutton Institute Bridget Emmett – UK Centre for Ecology & Hydrology David S. Powlson – Rothamsted Research Jacqueline (Jack) Hannam – Cranfield University Jonathan Sanderman – Woodwell Climate Research Center Thomas W. Crowther – ETH Zürich Carlos A. Guerra – German Centre for Integrative Biodiversity Research (iDiv) Brajesh K. Singh – Western Sydney University Fernando T. Maestre – King Abdullah University of Science and Technology Mark Kibblewhite – Cranfield University R. Michael Miller – Argonne National Laboratory Peter Smith – University of Aberdeen Kristine Nichols – Soil Regeneration Unlimited Elaine Ingham – Soil Food Web School Isabel Barros – University of Coimbra Maria J. I. Briones – University of Vigo Lucrezia Caon – Food and Agriculture Organization of the United Nations Manuel Delgado-Baquerizo – Spanish National Research Council (CSIC) Richard D. Bardgett – University of Manchester Nico Eisenhauer – Leipzig University / iDiv David J. Eldridge – University of New South Wales Ingrid Kögel-Knabner – Technical University of Munich Dominique Arrouays – INRAE, InfoSol Unit Megan Balks – University of Waikato Borris Boincean – Alecu Russo State University of Bălți Pardon Muchaonyerwa – University of KwaZulu-Natal Maja Krzic – University of British Columbia Dan Evans – Cranfield University Karl Ritz – University of Nottingham Simon Jeffery – Harper Adams University Aidan Keith – UK Centre for Ecology & Hydrology Sam Bonnett – University of the West of England (UWE Bristol) Lizzie Sagoo – ADAS Anne Bhogal – ADAS John Williams – ADAS Chris Stapleton – Independent soil consultant (formerly HS2 Ltd) Marla Riekman – Manitoba Agriculture Dianna Bagnall – Soil Health Institute Ólafur Arnalds – Agricultural University of Iceland André Bationo – African Development Bank (soil fertility specialist) Charles A. Igwe – University of Nigeria, Nsukka Lydia Jennings – Independent environmental / soil scientist Alina Widmer – University of Bern Yamina Pressler – For the Love of Soil Andie Marsh – Independent soil scientist / communicator Alexandra Muxworthy – PES Technologies Luke Harrold – Scotland’s Rural College (SRUC) Mark S. McClain – Independent soil and wetland scientist Tim Overheu – Department of Primary Industries and Regional Development, Western Australia Adrian P. Broz – Planetary Soils

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• Lease to Grow: The Rise of Rental Hydroponic Systems

  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 studies. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/ Monty Don Alan Titchmarsh Adam Frost Frances Tophill Joe Swift Arit Anderson Carol Klein Nick Bailey Rachel de Thame Sue Kent Toby Buckland David Domoney Katie Rushworth Charlie Dimmock Christine Walkden Diarmuid Gavin Chris Beardshaw Juliet Sargeant Alys Fowler James Wong Carole Baxter Brian Cunningham Kirsty Wilson Michael Perry Roy Lancaster Chris Collins Advolly Richmond Pippa Greenwood Matthew Wilson James Alexander-Sinclair Matt Biggs Bob Flowerdew Chris Baines Bunny Guinness Jim McColl Sarah Raven Rich Brothers Anne Swithinbank Andy Sturgeon Dan Pearson Alan Gardner Kim Wilde Tommy Walsh Matt James Stefan Buczacki Lee Connolly George Hassall Tayshan Hayden-Smith Joel Bird Errol Reuben Fernandes Poppy Okotcha Manoj Malde Tom Massey Pip Probert Helen Elks-Smith Penny Lamb Colin Stafford-Johnson Camilla Bassett-Smith Anna Greenland Sarah Gerrard-Jones Scott Smith Oliver Bond Chris Hull Steve Williams Lee Burkhill Peter McDermott Richard Jackson Daisy Payne Ned Don Peter Donegan Mark Lane Danny Clarke George Anderson Calum Clunie Walter Gilmour Bill Torrance Sid Robertson Mike Dilger Nigel Colborn Nick Macer Florence Headlam Nigel Don Chris Jones John Kelly Liz Rigby Rod Saunders Rachel Saunders JJ Chalmers Clay Jones Joy Larkham Lawrence Llewellyn-Bowen Kate Humble Carol Vorderman Mark Foster Ian Hood Tony Kirkham Jamie Butterworth Tom Hart Dyke Nick Bailey  Alice Vincent

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• Rats in the NFT: Rodents, Risks and Hydroponic Safety

  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 vents, reduce outdoor hiding spots, use traps (preferred over poisons), monitor and keep pest logs, and consider professional tamper-resistant services for larger operations. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/ Marisa Thompson — Extension Urban Horticulture Specialist, New Mexico State University, USA Abiya (Abi) Saeed — Extension Horticulture Specialist, Montana State University Extension, USA Svoboda Vladimirova Pennisi — Extension Horticulture Specialist, Department of Horticulture, University of Georgia, USA Michael Parker — Extension Horticulture Specialist (Tree Fruits & Pecans), Department of Horticultural Science, North Carolina State University, USA Kim Todd — Professor & Extension Horticulture Specialist, Agronomy & Horticulture, University of Nebraska–Lincoln, USA Karen Panter — Emeritus Extension Horticulture Specialist, Department of Plant Sciences, University of Wyoming, USA Todd Higgins — Horticulture Specialist, University of Missouri Extension, USA Linda Chalker-Scott — Extension Horticulturist, Washington State University, USA Jeff Gillman — Director, UNC Charlotte Botanical Gardens, University of North Carolina at Charlotte, USA Joe Masabni — Extension Vegetable Specialist, Texas A&M AgriLife Extension, USA Mengmeng Gu — Professor & Extension Horticulturist, Texas A&M University, USA Ajay Nair — Associate Professor & Extension Vegetable Specialist, Iowa State University, USA Chris Currey — Associate Professor of Horticulture, Iowa State University, USA Gary Bachman — Extension Horticulture Specialist, Mississippi State University Extension, USA David Trinklein — Horticulture Specialist, University of Missouri, USA Pam Bennett — Horticulture Educator, Ohio State University Extension, USA Bert Cregg — Professor of Horticulture & Forestry, Michigan State University, USA Holly Scoggins — Associate Professor of Horticulture (emerita), Virginia Tech, USA Youbin Zheng — Professor, School of Environmental Sciences (controlled environment horticulture), University of Guelph, Canada Gopinadhan Paliyath — Professor, Department of Plant Agriculture, University of Guelph, Canada John A. Cline — Professor, Department of Plant Agriculture (tree fruit horticulture), University of Guelph, Canada Mary Jane Clark — Professor of Horticulture, Niagara College, Canada David Percival — Professor & Director, Wild Blueberry Research Program, Faculty of Agriculture, Dalhousie University, Canada Rajasekaran (Raj) Lada — Professor, Horticultural Science, Faculty of Agriculture, Dalhousie University, Canada Samuel Asiedu — Professor, Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Canada Kate Congreves — Associate Professor, Environmental Agronomy & Horticulture, Department of Plant Sciences, University of Saskatchewan, Canada Bob Bors — Assistant Professor & Head of Fruit Program, Department of Plant Sciences, University of Saskatchewan, Canada Jackie Bantle — Greenhouse and Horticulture Facility Manager, University of Saskatchewan, Canada Clarence Swanton — Professor Emeritus, Department of Plant Agriculture, University of Guelph, Canada Jason L. McCallum — Research Scientist (Plant / Horticultural Science), Agriculture and Agri-Food Canada, Canada Alistair Griffiths — Director of Science & Collections, Royal Horticultural Society (RHS), UK Tijana Blanusa — Horticultural Scientist, School of Agriculture, Policy and Development, University of Reading & RHS, UK Jim Monaghan — Professor of Applied Horticulture / Crop Production, Harper Adams University, UK Andrew Beacham — Senior Lecturer in Horticultural Science, Harper Adams University, UK Lauren Chappell — Vegetable Crop Scientist / Plant Pathologist, Warwick Crop Centre, University of Warwick, UK Ross Cameron — Professor of Horticulture and Landscape Plant Science, University of Sheffield, UK Meirion Roberts — Lecturer involved in Horticultural Science modules, Aberystwyth University, UK Rachel Baxter — Lecturer / Researcher in Crop & Horticultural Science, Lancaster Environment Centre, Lancaster University, UK Paul Hadley — Professor of Horticultural Crop Science, University of Reading, UK David Evans — Head of Grounds and Gardens (horticultural science background), University of Exeter, UK John Mulhern — College Principal, Teagasc College of Amenity Horticulture, National Botanic Gardens, Dublin, Ireland James Brady — Lecturer, Teagasc College of Amenity Horticulture, National Botanic Gardens, Ireland Hui Xing — Lecturer, Teagasc College of Amenity Horticulture, National Botanic Gardens, Ireland Shane Brett — Lecturer, Teagasc College of Amenity Horticulture, National Botanic Gardens, Ireland Eoghan Buckley — College Lecturer – Horticulture, Teagasc Kildalton College, Ireland Grainne McMahon — Assistant Principal – Horticulture, Teagasc Kildalton College, Ireland Teri Acheson — College Lecturer – Horticulture, Teagasc (Ireland) Darren White — Technician, Teagasc College of Amenity Horticulture, National Botanic Gardens, Ireland Deirdre Walsh — Assistant Principal, Teagasc College of Amenity Horticulture, Ireland

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