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Patent on plant characteristics not without consequences
For half a century international plant breeders’ rights have brought stability and security to the breeding sector. These rights have protected breeders against unauthorised …
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Less energy input yields as many or more gerberas
Since 2014 Dutch gerbera grower Reijm Nieuwerkerk has been using a system to actively ventilate the greenhouse air as part of its Next Generation …
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Innovations in crop protection ready to put into practise
Researchers and companies are continually developing new techniques for greenhouse production. Therefore, in principle crop protection can reach a much higher level. But to …
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‘Controlled removal of moisture results in energy savings’
By using a model to show the energy balance in a greenhouse you can see at a glance where the energy losses are likely …
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Light induction influences production of compounds and plant physiology
Light is more than just the big mechanism behind photosynthesis. Parts of the light spectrum, or simply more or less light, influence the development …
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CO2-dosing brings huge energy savings with same quality
By dosing lilies with CO2 the light level can be reduced by one third while the quality remains the same. This conclusion was made …
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Optimal application of crop protection products depends on crop, pest and area
Different techniques are available for the application of crop protection products. A crop can be treated by spraying or by treating the air by …
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‘Production results are satisfactory but we need to raise the bar each year.’
Although their revolutionary greenhouse has had a superb first year, the brothers Duijvestijn see room for improvement. Technically there are still gains to be …
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Iron is essential for photosynthesis and respiration
Iron plays a major role in photosynthesis. That’s why a shortage directly affects the production capacity of the plant. The application of chelates has …
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Use compost to increase resistance to plant diseases
In biological cultivation every opportunity to control soil-borne diseases is a bonus. The idea of providing compost components that can make the soil more …