Groenekennis

Informatie voor professionals in voedsel en groen

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    Groenekennis - Informatie voor professionals in voedsel en groen

    Groenekennis bevat artikelen uit vaktijdschriften, rapporten, video’s, presentaties, posters en websites op het gebied van landbouw, visserij, groene ruimte en voeding. Groenekennis wordt dagelijks bijgewerkt en bevat ongeveer 500.000 bronnen.

    Groenekennis is de globale view over diverse deelbestanden. Groenekennis is gevuld met alle informatie uit Groen Kennisnet, de Hydrotheek, Tuinpad, IB archief, ARTIK, bioKennis, Kennisbank Plantaardige bronnen, Kennisbank Zeldzame landbouwhuisdieren en afgesloten documentatiebestanden zoals Land Bodem Water en Consumenten- en huishoudstudies.

    Groen Kennisnet is een zeer belangrijk onderdeel van Groenekennis. De doelstelling van Groen Kennisnet is kennis delen op het gebied van Voedsel en Groen te bevorderen en te faciliteren voor een breed publiek.

    Bronnen in Groenekennis kunnen direct opgevraagd worden via een geavanceerde zoekmachine met een 'google-achtige' interface. Met filters kan ingezoomd worden op diverse aspecten, zoals Trefwoord, Collectie, Jaar en Auteur. Bovendien biedt Groenekennis gebruikers de mogelijkheid om via de E-mail geattendeerd te worden op aanvullingen in specifieke vakgebieden.
    De Tijdschriftenlijst biedt een overzicht van tijdschriften waaruit de artikelen voor Groenekennis worden geselecteerd. Door te klikken op een titel krijgt u alle artikelen uit dat tijdschrift in de Groenekennis database getoond.
    Zoeken op kaart biedt een geografische ingang op de beschikbare publicaties over de binnen dit bestand onderscheiden gebieden.

    Groenekennis is onderdeel van het bibliotheeksysteem van WUR. Praktijkgerichte publicaties en rapporten van WUR komen daardoor automatisch beschikbaar. Daarnaast wordt de database doorlopend gevuld met voor het groen onderwijs bruikbare bronnen en artikelen, video’s en websites. Het percentage online is de laatste jaren gegroeid tot tweederde van de totale aanwas per jaar. Dit percentage groeit nog steeds.

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No artificial lighting but two energy screens and no dehumidification : tomato grower Van der Spek makes significant choices \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2016
Gertjan van der Spek is the first tomato grower without artificial lighting in the Netherlands to have two transparent energy screens and no dehumidification. This was his next step to save energy after having reduced the use of the minimum rail and ...
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Prevent clean ground becoming infected again immediately : Maurice van Os: 'Steaming only is not enough' \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2016
Chrysanthemum grower Maurice van Os, like many Dutch colleagues, has a problem with thrips in the nursery. He solves it mainly by using Amblyseius swirskii, supplemented with Amblyseius cucumeris in the cold season. He steams to control primarily Fus ...
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Difficult to control mealybug gains ground in vegetable production : working towards a good biological strategy \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ Pijnakker, J. \ Vreugdenhil, J. \ 2016
Vegetable growers don’t like to admit that they have mealybug. A group of cooperating parties therefore sent a questionnaire to growers in 2015. From this it appears that mealybug is a tricky pest to control and it is becoming increasingly prevalent ...
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Bees and bumblebees useful for crop protection as well as pollinating : handy 'air quality detectors' pick up bacteria and fungal spores \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2016
Bees and bumblebees are, thanks to their build and behaviour, good pollinators. But they have additional potential. They are also useful for disease control by transferring antagonistic microorganisms and for retrieving information about diseases in ...
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Light induction influences production of compounds and plant physiology : possibilities through intentional use of the light spectrum \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2016
Light is more than just the big mechanism behind photosynthesis. Parts of the light spectrum, or simply more or less light, influence the development of plants: germination, flowering, cell division and cell elongation. Light induction also affects t ...
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Extra light and save energy in ideal winter-light greenhouse : effect of condensation still being researched \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2015
A consortium of companies, together with Wageningen UR, is developing a greenhouse that will maximise the amount of light entering between October and March. The goal is to achieve 10% extra yield during these months. The gain in light should come fr ...
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No lighting, but still two energy screens without dehumidification : tomato grower Van der Spek makes distinct choices \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2015
Gertjan van der Spek is the first grower in the Netherlands without supplementary lighting to install two transparent energy screens without any dehumidification system. This is his next step towards saving energy having already reduced the use of th ...
help
Short term non-chemical approach to Tuta absoluta and thrips : CATT shows promise against quarantine pests \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2015
Pests such as insects, mites and nematodes don’t just cause damage, in the case of quarantine pests they can also limit exports. In cooperation with the sector, entomologist Yutong Qiu tested the possibility of using Controlled Atmosphere Temperature ...
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Know the flue gas composition to prevent plant damage : flue gas cleaner: ignorance breeds contempt \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2014
It’s possible to utilise the CO2 in the flue gases given off by the cogenerator if the flue gases are cleaned first. But is this really safe? What should you look out for and what do you do about the maintenance of the flue gas cleaner? In practise, ...
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Olij Roses uses solar energy for heat and electricity in Kenya : Green Farming’s demo-project for sustainable energy \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2014
In 2012 the Olij Group built a new nursery in Naivasha, Kenya. The nursery has a sustainable energy system based on solar power and was set up together with various Dutch suppliers and advisors.
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Grower chooses 10 cm high substrate slab for artificially lit tomatoes : watering more efficient with slightly higher substrate \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2014
Since October 2012 grower Erik Zwinkels has been growing artificially lit tomatoes on 10 cm high slabs instead of the usual 7.5 cm high. The reasons are ease of watering and better root growth, which makes it easier for the plants to endure the diffi ...
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‘Coating diffuses light, keeps out heat and improves quality’ : rose grower finds coating better than a screen \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2014
Rose growers Frank and Ronald van Os selected a coating that diffuses light and reflects heat. The main reason was to achieve better quality. Growers are also using the coating during the warm summer period for other crops that have a high light requ ...
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Resistance management is useful and saves resources : tailor-made crop protection plan \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2013
Just like the fire brigade has an action plan for tackling a fire, so every grower should have a crop protection plan. If a disease or infestation strikes then it’s immediately clear what measurements, procedures or products to use. Using the minimum ...
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Horizontal light distribution is more important then vertical distribution : diffuse light: deeper or broader into the greenhouse? \ In greenhouses : the international magazine for greenhouse growers [Artikel]
Arkesteijn, M. \ 2013
Good horizontal distribution of diffuse light is very important, according to plant physiologist Anne Elings of Wageningen UR Greenhouse Horticulture. Diffuse light only penetrates a little deeper into the crop than direct light. Therefore the wider ...
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