Documents (Auteur)

• [Article] In five years’ time, a lot of operations will be using full LED : "Growers who want to go fossil-free will have to work with LEDs" / KIERKELS (T). 2022, vol. 11, n° 4. - p. 6-7
  
• [Article] Molecular and genetic knowledge make huge leaps : markers, snips and dimmers, the new world of plant breeding / ANGENENT (G) ; KIERKELS (T) ; HEUVELINK (E). 2022, vol. 11, n° 3. - p. 38-39
  
• [Article] What happened to the harvesting robots? A working prototype still needs a lot of development and funding / KIERKELS (T). 2022, vol. 11, n° 3. - p. 33-35
  
• [Article] New space-saving growing system for strawberries – Four-tier year-round cropping works : winter crop results keenly awaited / KIERKELS (T). 2022, vol. 11, n° 3. - p. 26-27
  
• [Article] What is the most efficient way to use your installed lighting? Focus on light sum and light integration for plant balance and energy savings / KIERKELS (T). 2022, vol. 11, n° 2. - p. 52-53
  
• [Article] Production lost when 24-hour mean too high for too long : more insight on effect of temperature needed for optimal control / HEUVELINK (E) ; KIERKELS (T). 2022, vol. 11, n° 2. - p. 46-47
  
• [Article] The virgin development of a fruit - Seedless fruit vegetables : an attractive option / HEUVELINK (E) ; KIERKELS (T). 01/2022, vol. 11, n° 1. - p. 46-47
  
• [Article] Research in tomato and cucumber - Interlighting produces higher yields at high light level / KIERKELS (T). 01/2022, vol. 11, n° 1. - p. 40-41
  
• [Article] Stabilised ferrate suitable for use in horticulture – A new oxidant makes cucumber slabs virus-free without residues / KIERKELS (T). 01/2022, vol. 11, n° 1. - p. 26-27
  
• [Article] Viruses, Nesi and Tuta put pressure on integrated approach – Crop changeover hampered by new diseases and smaller product package / KIERKELS (T). 2021, vol. 10, n° 4. - p. 32-33
  
• [Article] Many methods already in use but still a lot of opportunities – Energy saving : Plant offers many possibilities / HEUVELINK (E) ; KIERKELS (T). 2021, vol. 10, n° 4. - p. 26-27
  
• [Article] Need for dehumidification still on the rise : vertical ventilation systems and dehumidifiers both perform well / KIERKELS (T). 2021, vol. 10, n° 3. - p. 18-19
  
• [Article] Light use efficiency 14% lower in autumn than spring : more insight into cause of autumn drop in tomato production / HEUVELINK (E) ; MARCELIS (L) ; EVELEENS (B A) ; KIERKELS (T). 2021, vol. 10, n° 2. - p. 48-49
  
• [Article] Michael Peters, CEO of PlantLab : ‘In ten years we want our vertical farms to be earning €1 billion’ / KIERKELS (T). 2021, vol. 10, n° 2. - p. 36-37
  
• [Article] ‘Irrigation requires you to think quite differently’ : growing strawberries on rockwool is a promising learning curve / KIERKELS (T). 2021, vol. 10, n° 2. - p. 33-35
  
• [Article] Plants grow naturally in ‘white’ light : good experience with broad-spectrum LEDs at Vahl cucumber nursery / KIERKELS (T). 2021, vol. 10, n° 2. - p. 30-31
  
• [Article] Two pioneers look back and ahead : Next Generation Growing constantly drives innovation and refinement / KIERKELS (T). 2021, vol. 10, n° 1. - p. 7-9
  
• [Article] Headhouse robots’ getting smarter and smarter : with camera watching robot’s actions, you can adjust immediately / PEKKERIET (E) ; KIERKELS (T). 2020, vol. 9, n° 4. - p. 45-47
  
• [Article] Sweet pepper grower breaks mould with coco coir substrate : strong crop and vigorous roots with coir and controlled watering / KIERKELS (T). 2020, vol. 9, n° 4. - p. 40-41
  
• [Article] Natural enemies of pests respond to plant’s signals : pestered plants cry for help by emiting SOS scents / HEUVELINK (E) ; DICKE (M) ; KIERKELS (T). 2020, vol. 9, n° 4. - p. 32-33
  
• [Article] The ‘trickiest element’ in ten steps : preventing calcium problems is challenge for almost every grower / KIERKELS (T). 2020, vol. 9, n° 3. - p. 38-39
  
• [Article] Wind has minimal impact on cucumber greenhouse climate : "Uniform climate thanks to low-investment double-layer screen" / KIERKELS (T). 2020, vol. 9, n° 3. - p. 36-37
  
• [Article] Hormones important for emergencing and breaking dormancy. Germination of seed : A rather complicated process / HEUVELINK (E) ; KIERKELS (T). 2020, vol. 9, n° 3. - p. 32-33
  
• [Article] Working under white light is much more pleasant : white light boosts tomato and cucumber yields / KIERKELS (T). 2020, vol. 9, n° 3. - p. 10-11
  
• [Article] Fertilisation specialist Geerten van der Lugt : ‘More insights needed to achieve real precision fertilisation’ / KIERKELS (T). 05/2020, vol. 9, n° 2. - p. 18-19
  
• [Article] All plant organs pull as hard as they can for available sugars : distribution of assimilates can be steered / HEUVELINK (E) ; KIERKELS (T). 05/2020, vol. 9, n° 2. - p. 10-11
  
• [Article] Hormones, the postmen in the plant : Hormones are key to dozens of growth and development processes / HEUVELINK (E) ; KIERKELS (T). 2020, vol. 9, n° 1. - p. 39-41
  
• [Article] LED favourite light source for Belgian tomato growers : regular supply contracts lead to greater lighting requirement / KIERKELS (T). 2020, vol. 9, n° 1. - p. 33-35
  
• [Article] Strawberry season extended with LED lighting : Opting for small lit area fits in with sales plan for the year / KIERKELS (T). 2019, vol. 8, n° 4. - p. 28-29
  
• [Article] Interest in dehumidification with individual units growing : Condensing greenhouse moisture against cold panels or with salt / KIERKELS (T). 2019, vol. 8, n° 4. - p. 23-25
  
• [Article] Lettuces and spiach-grower Marco de Bruin, Minnesota, US: "Scaling up more rapidly than would be possible alone" / KIERKELS (T). 2019, vol. 8, n° 4. - p. 15-17
  
• [Article] Growers Anne Mortelmans and Stefan Van Craen on LEDs : "The more leaves you light, the better; every lit leaf will work / KIERKELS (T). 2019, vol. 8, n° 4. - p. 6-7
  
• [Article] From whitewash to selective light management : Growth of temporary coatings paves way for tailor-made products / KIERKELS (T). 2019, vol. 8, n° 4. - p. 9-11
  
• [Article] Robot on a par with human pickers in cost terms : Strawberry robot works even better with right variety and growing system. / KIERKELS (T). 2019, vol. 8, n° 3. - p. 36-37
  
• [Article] Solution for oxidising biofilm in irrigation pipes : Chlorine dioxide adds to the range of disinfectants / KIERKELS (T). 2019, vol. 8, n° 3. - p. 30-31
  
• [Article] Oxygen supply in slab essential for healthy and active root system : Good root environment important for product quality / HEUVELINK (E) ; POSTMA (J) ; KIERKELS (T). 2019, vol. 8, n° 3. - p. 9-11
  
• [Article] Closed energy screen is key part of puzzle in NGG tomatoes / KIERKELS (T). 2019, vol. 8, n° 2. - p. 54-55
  
• [Article] Vertical farming attracts a very new breed of « growers » / KIERKELS (T). 2019, vol. 8, n° 2. - p. 51-53
  
• [Article] Measuring gene activity makes cultivation much easier / KIERKELS (T). 2019, vol. 8, n° 2. - p. 30-31
  
• [Article] High yield not always compatible with high quality / HEUVELINK (E) ; KIERKELS (T). 2019, vol. 8, n° 2. - p. 12-13
  
• [Article] Closed irrigation system at tomato specialist Den Berk. Low-sodium potassium fertiliser makes endless recirculation easier / KIERKELS (T). 2019, vol. 8, n° 1. - p. 18-19
  
• [Article] Working towards an annual plan for elements : more scope for better quality crop with ion-specific steering / KIERKELS (T). 2019, vol. 8, n° 1. - p. 10-11
  
• [Article] We're aiming for 5% higher yields with more and bigger fruits / KIERKELS (T). 2018, vol. 7, n° 4. - P. 32-33
  
• [Article] Plant itself regulates environment around the roots / HEUVELINK (E) ; KIERKELS (T). 2018, vol. 7, n° 4. - P. 20-21
  
• [Article] Need for resilient crop stimulates interest in silicon / KIERKELS (T). 2018, vol. 7, n° 3. - P. 13-15
  
• [Article] Researchers "grow" model of ideal plant in simulated greenhouse / KIERKELS (T). 2018, vol. 7, n° 3. - P. 10 -11
  
• [Article] Plants wouldn't be green without magnesium / HEUVELINK (E) ; KIERKELS (T). 2018, vol. 7, n° 2. - P. 48-49
  
• [Article] Split-root system harvests sodium and removes it via the crop / KIERKELS (T). 2018, vol. 7, n° 2. - P. 46-47
  
• [Article] "I get goose bumps from such evenly coloured tomatoes" / KIERKELS (T). 2018, vol. 7, n° 2. - P. 36-37
  
• [Article] Sharing crop data helps build knowledge on diffuse roof / KIERKELS (T). 2018, vol. 7, n° 2. - P. 18-19
  
• [Article] Ingenious transport system brings sugars from 'source' to sink / HEUVELINK (E) ; KIERKELS (T). 2018, vol. 7, n° 2. - P. 16-17
  
• [Article] Too little insight about factors that effect flowering / HEUVELINK (E) ; KIERKELS (T). 2018, vol. 7, n° 1. - P. 42-43
  
• [Article] First grower sheds more light on anti-condensation coating / KIERKELS (T). 2018, vol. 7, n° 1. - P. 35-37
  
• [Article] Combining two vertical fans makes for more even climate / KIERKELS (T). 2018, vol. 7, n° 1. - P. 26-27
  
• [Article] Energy-saving screens can now be compared objectively / KIERKELS (T). 2018, vol. 7, n° 1. - P. 18-19
  
• [Article] Big Data penetrates horticulture - Getting full understanding of plant behaviour and product quality / KIERKELS (T). 2017, vol. 6, n° 4. - P. 46-47
  
• [Article] WHITE ROOT TIPS SUPPLY PLANTS WITH OXYGEN, WATER AND NUTRIENTS / HEUVELINK (E) ; KIERKELS (T). 2017, vol. 4, n° 6. - P. 32-33
  
• [Article] BIOLOGICAL CLOCK DETERMINES MANY PROCESSES IN THE PLANT / HEUVELINK (E) ; KIERKELS (T). 2017, vol. 6, n° 4. - P. 12-13
  
• [Article] CONSTANT ARMS RACE BETWEEN PLANT AND FUNGI / HEUVELINK (E) ; KIERKELS (T). 2017, vol. 6, n° 3. - P. 10-11
  
• [Article] CUCUMBER GROWER TAKES QUANTUM LEAP WITH NEXT GENERATION GROWING / KIERKELS (T). 2017, vol. 6, n° 2. - P. 40-41
  
• [Article] POTASSIUM, THE MAJOR ORGANISER IN NUMEROUS PLANT PROCESSES (2) / HEUVELINK (E) ; KIERKELS (T). 2017, vol. 6, n° 2. - P. 32-33
  
• [Article] TRANSPIRATION IS DRIVER BEHIND COOLING AND UPTAKE AND TRANSPORT OF NUTRIENTS / HEUVELINK (E) ; KIERKELS (T). 2017, vol. 6, n° 2. - P. 18-19
  
• [Article] REMOTE GROWING NOW POSSIBLE WITH CONSISTENT DATA COLLECTION / KIERKELS (T). 2017, vol. 6, n° 2. - P. 12-13
  
• [Article] WATER SYSTEM CONTAMINATION TACKLED WITH POLYPHOSPHATES AND BIOCIDE / KIERKELS (T). 2017, vol. 6, n° 2. - P. 7-9
  
• [Article] ABILITY TO DIFFERENTIATE THROUGH USE OF ORGANIC SUBSTRATE / KIERKELS (T). 2017, vol. 6, n° 1. - P. 48-49
  
• [Article] TRIALS SHOW FAR-RED LIGHT LEADS TO LARGE RISE EN TOMATO PRODUCTION / KIERKELS (T). 2017, vol. 6, n° 1. - P. 30-31
  
• [Article] EVEN WHEN THERE'S NO WIND, ALWAYS A BREEZE IN GREENHOUSE VAN DER VOIRD / KIERKELS (T). 2017, vol. 6, n° 1. - P. 26-27
  
• [Article] SWITCH TO LED-INTERLIGHTING REQUIRES NEW WAY OF GROWING / KIERKELS (T). 2017, vol. 6, n° 1. - P. 10-11
  
• [Article] WHITE ROOT TIPS SUPPLY PLANTS WITH OXYGEN, WATER AND NUTRIENTS / HEUVELINK (E) ; KIERKELS (T). 2016, vol. 5, n° 3. - P. 44-45
  
• [Article] THE MULTITUDE OF SOLUTIONS IS TOO COMPLEX AND HINDERS EXCHANGE OF KNOWLEDGE / KIERKELS (T). 2016, vol. 5, n° 3. - P. 33-35
  
• [Article] LIMITS TO TEMPERATURE INTEGRATION FOUND ONLY BY EXPERIMENTING / HEUVELINK (E) ; KIERKELS (T). 2016, vol. 5, n° 3. - P. 18-19
  
• [Article] INNOVATIONS IN CROP PROTECTION READY TO PUT INTO PRACTISE / KIERKELS (T). 2016, vol. 5, n° 2. - P. 30-31
  
• [Article] YOUNG FRUITS PULL TOO HARD, FLOWERS ABOVE ABORT / HEUVELINK (E) ; MARCELIS (L) ; KIERKELS (T). 2016, vol. 5, n° 2. - P. 16-17
  
• [Ouvrage] PLANT PHYSIOLOGY IN GREENHOUSES / HEUVELINK (E) ; KIERKELS (T). 2015. - 128 P.
  
• [Article] IRON IS ESSENTIAL FOR PHOTOSYNTHESIS AND RESPIRATION / HEUVELINK (E) ; KIERKELS (T). 2016, vol. 5, n° 1. - P. 48-49
  
• [Article] PRODUCTION VERY CLOSELY LINKED TO AMOUNT OF INTERCEPTED LIGHT / HEUVELINK (E) ; DUECK (T) ; VAN NOORT (F) ; KIERKELS (T). 2015, vol. 4, n° 4. - P. 34-35
  
• [Article] DNA : THE RECIPE BOOK FOR ALL THE PROCESSES IN THE PLANT / HEUVELINK (E) ; KIERKELS (T). 2015, vol. 4, n° 4. - P. 12-13
  
• [Article] AUTOMATIC CONTAINER FILLER PREVENTS ERRORS DURING FERTILISATION / KIERKELS (T). 2015, vol. 4, n° 4. - P. 7-9
  
• [Article] ENZYME RUBISCO OFTEN SLOWS THINGS DOWN - PLANT RESPONDS SLOWLY TO CHANGING LIGHT INTENSITY / KAISER (E) ; HEUVELINK (E) ; KIERKELS (T). 2015, vol. 4, n° 3. - P. 48-49
  
• [Article] STOMATA : THE GATES ON THE LEAVES - CONTINUOUS BALANCING ACT BETWEEN ASSIMILATION AND MOISTURE LOSS / HEUVELINK (E) ; KIERKELS (T). 2015, vol. 4, n° 3. - P. 40-41
  
• [Article] HIGHER PRODUCTION TEMPERATURE WITHOUT EXTRA GAS - AT LEAST 25% ENERGY SAVINGS WITH NEXT GENERATION GROWING IN CUCUMBERS / KIERKELS (T). 2015, vol. 4, n° 3. - P. 34-35
  
• [Article] ON THE BRINK OF LIFE AND DEATH - CONTROL OF VIRUSES IS IMPOSSIBLE, PREVENTION OF INFECTION THE ONLY MEANS / HEUVELINK (E) ; KIERKELS (T). 2015, vol. 4, n° 3. - P. 10-11
  
• [Article] DECISION MAKING MODEL SUPPORTS INVESTMENT OVERSEAS / KIERKELS (T). 2015, vol. 4, n° 3. - P. 16-17
  
• [Article] NITROGEN : THE MOST IMPORTANT NUTRITIONAL ELEMENT FOR THE PLANT / HEUVELINK (E) ; KIERKELS (T). 2015, vol. 4, n° 2. - P. 44-45
  
• [Article] DOUBLE ACTION FUNGAL AGENT ALSO IMPROVES PLANT GROWTH / KIERKELS (T). 2015, vol. 4, n° 2. - P. 32-33
  
• [Article] PRODUCTION IN A FACTORY (THE CELL) REQUIRES HIGH LEVEL OF ORGANISATION / HEUVELINK (E) ; KIERKELS (T). 2015, vol. 4, n° 2. - P. 18-19
  
• [Article] CRAZY ROOTS IS A PERSISTENT PROBLEM BUT KNOWLEDGE IS GROWING / KIERKELS (T). 2015, vol. 4, n° 1. - P. 34-35
  
• [Article] LESS AT THE TOP, MORE GAIN AT THE BOTTOM / HEUVELINK (E) ; KIERKELS (T). 2015, vol. 4, n° 1. - P. 6-7
  
• [Article] BRANCHING DETERMINED BY LIGHT LEVEL, LIGHT COLOUR AND CO2 / HEUVELINK (E) ; KIERKELS (T). 2014, vol. 3, n° 3. - P. 46-47
  
• [Article] INFRARED PHOTOS CAST LIGHT ON HEAT LOSS IN AND AROUND THE GREENHOUSE / KIERKELS (T). 2014, vol. 3, n° 3. - P. 44-45
  
• [Article] HIGHER LIGHT TRANSMISSION AND HIGH HAZE GO WELL TOGETHER IN GREENHOUSES / KIERKELS (T). 2014, vol. 3, n° 3. - P. 6-7
  
• [Article] OPTIMAL LEAF AREA LEADS TO HIGHER PRODUCTION AND HIGHER INCOME / HEUVELINK (E) ; KIERKELS (T). 2014, vol. 3, n° 2. - P. 52-53
  
• [Article] LOOIJE'S NEW TOMATO GREENHOUSE PACKED FULL OF SMART SOLUTIONS / KIERKELS (T). 2014, vol. 3, n° 2. - P. 37-39
  
• [Article] DIFFERENT EC FOR DAY AND NIGHT CAN BE BENEFICIAL / HEUVELINK (E) ; KIERKELS (T). 2014, vol. 3, n° 2. - P. 25-27
  
• [Article] EXTENDED CULTIVATION STIMULATES NEW BLOCK AND BLOCK-SLAB COMBINATIONS / KIERKELS (T). 2014, vol. 3, n° 1. - P. 44-45
  
• [Article] A NEW LINE OF LED TOPLIGHTING READY FOR COMMERCIAL USE / KIERKELS (T). 2014, vol. 3, n° 1. - P. 31-33
  
• [Article] HIGHER PRODUCTION AND 10M3 LESS GAS USAGE BY GROWING DIFFERENTLY / KIERKELS (T). 2014, vol. 3, n° 1. - P. 24-25
  
• [Article] PROSPECTS FOR BIOLOGICAL CONTROL OF TOMATO RUST MITE / KIERKELS (T). 2014, vol. 3, n° 1. - P. 12-13
  
• [Article] PIONEER PLEASED WITH DECISION OVER NEXT GENERATION GROWING / KIERKELS (T). 2014, vol. 3, n° 1. - P. 6-7
  
• [Article] MANY COLOURS INFLUENCE THE SHAPE AND DEVELOPMENT OF THE PLANT / VAN IEPEREN (W) ; HEUVELINK (E) ; KIERKELS (T). 2013, vol. 2, n° 2. - P. 26-27
  
• [Article] PEPPER GROWERS WANT CERTAINTY BUT ALSO PROGRESS / KIERKELS (T). 2013, vol. 2, n° 2. - P. 22-23
  
• [Article] KNOW YOUR PHYSICS FOR BETTER GREENHOUSE CONTROL / KIERKELS (T). 2013, vol. 2, n° 2. - P. 19-21
  
• [Article] MANY PHYSIOGENE PROBLEMS DUE TO POOR CALCIUM DISTRIBUTION / HEUVELINK (E) ; KIERKELS (T). 2013, vol. 2, n° 2. - P. 10-11
  
• [Article] KNOWING PLANT REACTIONS ARE ESSENTIAL - THE NEXT GENERATION GROWING CALLS UPON GROWER'S HORTICULTURAL KNOWLEDGE / KIERKELS (T) ; HEUVELINK (E). 2013, vol. 1, n° 2. - P. 24-25
  
• [Article] CONVERT LIGHT TO FRESH PRODUCT AS EFFICIENTLY AS POSSIBLE - PLANTS CAN PRODUCE MUCH MORE / HEUVELINK (E) ; KIERKELS (T). 2013, vol. 1, n° 2. - P. 7-9
  
• [Article] SIMPLE AND CHEAP SOLUTION - MORE EVEN TEMPERATURE DISTRIBUTION IN LARGE GREENHOUSE WITH RIDGE PARTITIONS / KIERKELS (T). 2012, vol. 1, n° 1. - P. 50-51
  
• [Article] NEW STEP TOWARDS PERFECT LOGISTICS - LETTUCE PLANT PROPAGATION IN CLOSED CLIMATE CELL / KIERKELS (T). 2012, vol. 1, n° 1. - P. 39-41
  
• [Article] DIFFUSE LIGHT FROM GREENHOUSE COATING PENETRATES CROP DEEPER - AMERICAN'S YIELD MORE TOMATOES UNDER DIFFUSE ROOF COATING / KIERKELS (T). 2012, vol. 1, n° 1. - P. 30-31
  
• [Article] TAKE NOTE OF SPECIFIC PLANT NEEDS - MOST SUBSTRATES SUITABLE IF YOU ADAPT THE WATERING AND FERTILISER / HEUVELINK (E) ; KIERKELS (T). 2012, vol. 1, n° 1. - P. 26-27
  
• [Article] EARLIER PRODUCTION, MORE AND HEAVIER FRUITS - THE HIGHER THE HAZE, THE GREATER THE EXTRA PRODUCTION / KIERKELS (T). 2012, vol. 1, n° 1. - P. 6-7
  

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