Hydroponics Daily

• 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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• Hidden Hydroponics: How Cosmetics Brands Quietly Grow Ingredients

  Host Dr 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 extracts. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/ The Beet: A Podcast For Plant Lovers – Kevin Espiritu; Jacques Lyakov The joe gardener Show – Joe Lamp'l The Beginner's Garden – Jill McSheehy A Way to Garden – Margaret Roach KSL Greenhouse – Maria Shilaos; Taun Beddes Garden Basics with Farmer Fred – Fred Hoffman Garden Talk with Mr. Grow It – Chris (Mr. Grow It) The Gardening with Joey & Holly Radio Show – Joey Baird; Holly Baird Flower Power Garden Hour – Marlene Simon Backyard Gardens - Gardening for Everyone – Ben Gardner; Batavia Choctaw The Gestalt Gardener – Felder Rushing Neil Sperry's Gardens – Neil Sperry Davis Garden Show and Beyond – Don Shor; Lois Richter Just Grow Something – Karin Velez South Texas Gardening with Bob Webster – Bob Webster WPTF Weekend Gardener – Mike Raley; Rufus Edmisten Garden America – John Bagnasco; Bryan Main; Tiger Palafox Garden Talk (Wisconsin Public Radio) – Larry Meiller All Things Gardening – Mary Engisch; Charlie Nardozzi Better Lawns and Gardens – Teresa Watkins Cultivating Place – Jennifer Jewell Let's Argue About Plants – Steve Aitken; Danielle Sherry Green and Growing with Ashley Frasca – Ashley Frasca GardenLine with Skip Richter – Robert “Skip” Richter The Garden Mixer – Marianne Willburn; Leslie Harris Getting Dirty – Allison Turcan; Ivana Pilarska Focus on Flowers – Moya Andrews Garden Dilemmas, Delights & Discoveries – Mary Stone Bird Hugger – Catherine Greenleaf Valley Nursery Plantcast – Justin Robbins; Erin Parker Garden Variety – Charity Nebbe New Southern Garden – Nathan Wilson Garden Talk by Walter Andersen Nursery – Susy Lopez; Walter Andersen Rose Chat Podcast – Teresa Byington Growing Joy with Plants – Maria Failla In The Garden with Ron Wilson – Ron Wilson GardenFork Radio – Eric Rochow The Dirt Doctor Radio Show – Howard Garrett GardenDC – Kathy Jentz Yard Coach – Matt (Yard Coach Matt) In The Garden (KSFO) – Bob Tanem Growing Our Future – Gardopia Gardens team Your Midwest Garden Podcast – Mike O’Rourke; Scott Sandstrom The Garden Question – Craig McManus DIY Garden Minute by Spoken Garden – Sean McManus; Allison McManus Garden Talk with Mark Webber – Mark Webber Paul Parent Garden Club Show – Paul Parent Encyclopedia Botanica – Hilary Dahl Bloomers in the Garden – Len Schroeder; Julio Zamora A Garden Runs Through It – UC Master Gardeners of Colusa County Gardeners’ Question Time – Kathy Clugston; Peter Gibbs Gardening with the RHS – Guy Barter; Gareth Richards; Jenny Laville Gardeners’ Corner – David Maxwell On The Ledge – Jane Perrone The Organic Gardening Podcast – Fiona Taylor; Chris Collins grow, cook, eat, arrange – Sarah Raven; Arthur Parkinson Talking Heads - a Gardening Podcast – Saul Walker; Lucy Chamberlain Mike The Gardener - Gardening Podcast – Mike Palmer The Veg Grower Podcast – Richard Suggett Talking Dirty – Alan Gray; Thordis Fridriksson The Happy Garden Podcast – Mollie Green; Darren Rudge Pots & Trowels - The Gardening Podcast – Martin Fish; Jill Fish; Sean Riley Field and Garden – Lisa Mason Ziegler Home Show Garden Pros Radio – Home Show Garden Pros team Gardens, Weeds & Words – Andrew O’Brien Roots and All – Sarah Wilson The Scottish Garden Podcast – Julianne Robertson Gardeners’ World Magazine Podcast – Gardeners’ World editorial team The Sodshow – Peter Donegan Gardeners of the Galaxy – Emma the Space Gardener (Emma Doughty) All The Dirt – Steve Wood; Deryn Thorpe The Garden Clinic – Graham Ross; Sandra Ross In Defense of Plants – Matt Candeias We Dig Plants – Carmen Devito; Alice Marcus Krieg Plantrama – Ellen Zachos; C.L. Fornari Gardenerd Tip of the Week – Christy Wilhelmi The Native Plant Podcast – Mike Berkley; John Magee Still Growing – Jennifer Ebeling Epic Gardening (audio show) – Kevin Espiritu Grow, Cook, Inspire – Helen Cross Into the Garden with Leslie – Leslie Harris The Flower Podcast – Scott Shepherd The Cut Flower Podcast – Nicola Dixon Slow Flowers Podcast – Debra Prinzing The Plant Based Podcast – Ellen Mary; Michael Perry Growing Together: A Gardening Podcast – Don Kinzler; John Lamb The Urban Garden Podcast – Encore Ray The Kitchen Garden Magazine Podcast – Kitchen Garden editorial team Gardening with Ben – Ben (Gardening with Ben) The Garden Log – Ben Dark RHS Gardening Podcast – Royal Horticultural Society gardening team The Dirt: the gardening podcast from Grow Your Own magazine – Grow Your Own magazine team Skinny Jean Gardener Podcast – Lee Connelly Plant Talk Radio – Fred Hower My Garden Podcast – Penny Haslam Maritime Gardening Podcast – Greg Auton Gardens Illustrated Podcast – Gardens Illustrated editorial team Cultivate Simple – Brian Chiots; Susy Chiots DIRT with Diarmuid Gavin and Paul Smyth – Diarmuid Gavin; Paul Smyth Gardenerd Podcast – Christy Wilhelmi

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• Growing the Impossible: Hydroponic Crops the UK Can't Grow Outdoors

  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 production and supply to gardeners and farmers. https://eutrema.co.uk/shop/fertiliser/liquid-gold-unique-complete-fertiliser/   Terka Acton Henry Agg Simon Akeroyd Souren Ala Adam Alexander Rosemary Alexander James Alexander-Sinclair Zena Alkayat Zia Allaway Sharon Amos Camilla Anderson Jill Anderson Tanya Anderson Stephen Anderton Natalie Anstey Matthew Appleby Russell Attwood Claire Austin Matthew Baber Chris Baines Craig Ball Andrea Ballard Richard Barnes Camilla Bassett-Smith Nina Baxter Joanne Beattie Lucy Bellamy Pip Bensley Pernilla Bergdahl Vanessa Berridge Matthew Biggs Andrea Blackie Judith Blacklock Bridget Blair Adrian Bloom Richard Bloom Marian Boswall Julia Boulton Val Bourne Daisy Bowie-Sell Helier Bowling Edward Bowring Steven Bradley Sue Bradley Mandy Bradshaw Christopher Brickell Frances Brown Tom Brown Ursula Buchan Jonathan Buckley Stefan Buczacki Diane Budd Adriano Bulla Lee Burkhill Deborah Burn Paula Bushell Steve Bustin Lucy Butler Ciar Byrne Lorraine Caley Alexandra Campbell Lucy Chamberlain Amy Chapman Karen Chapman Michelle Chapman Ruth Chivers Shereen Chung-Blake JP Clark Francesca Clarke Victoria Clarke Richard Claxton Philip Clayton George Clowes Nigel Colborn Tom Coleman Christopher Collins Matthew Collins Vicki Cooke Hilary Course Kenneth Cox Martyn Cox Ray Cox Simon Crawford Emma Crawforth Helen Cross Sarah Croud Ken Crowther Leanne Crozier Fiona Cumberpatch Sally Cunningham Julie Dansereau Kate Dardis Ruth Darrah Dave Darwent Holly Daulby Chris Day Jo Davey Claudia de Yong Wendy Desyllas Mark Diacono

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