Research
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Prey diets greatly improve biological control by predatory mites
Predatory mites are the most important natural enemies used for biological pest control in greenhouse horticulture. Many of these predatory mites are mass-reared on …
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Researchers “grow” model of ideal plant in simulated greenhouse
3D modelling is set to play an ever greater role in research. It’s an important tool in the quest to design better LED modules, …
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New LED lamp rates highly in hybrid lighting trial
A trial with hybrid lighting (SON-T + LED) at Dutch tomato nursery Gebroeders Koot has yielded good results. The LED lamp used in the …
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Effect of disinfectants on quality of irrigation water
A range of chemicals are used to keep greenhouse pipework clean. They include bleach, hydrogen peroxide, chlorine dioxide and ECA water. Growers are concerned …
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Split-root system harvests sodium and removes it via the crop
The shift towards closed growing systems is forcing growers to take a critical look at their sodium figures. Would higher sodium levels affect the …
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Thinking about light in new project
Plants, insects, fungi and people perceive light colour and intensity via different organs and pigments. The human eye is particularly sensitive to green light, …
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Limits of dimming lights in phalaenopsis reached
Intensive lighting in winter is common in Phalaenopsis growing. A long-running Dutch research project is seeking to answer the question of whether less lighting …
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What plants are best for purifying indoor air?
With the second crop in the Winterlight greenhouse at the Energy Innovation and Demo Centre (IDC) in Bleiswijk (NL) coming to an end, it’s …
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“Sharing crop data helps build knowledge on diffuse roof”
Diffuse glass is becoming routine in new build greenhouses – and much more quickly than anticipated. But it is still difficult for growers to …
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Intensive screening promotes transpiration from the top
Reducing energy consumption in greenhouses is associated with higher humidity levels. Many growers are concerned that this could make the crop less active, impacting …