News

Breakthrough in organic cultivation

Van der Knaap has developed a sustainable cultivation system in order to cultivate organically without using the soil. After several years of testing, the organic nutritional solution is now available to growers.
> Continue reading

Van der Knaap Group resumes coco production

The past few months the outbreak of Covid-19 virus led to Van der Knaap production locations in Sri Lanka, India and the Dominican Republic remaining closed till further notice. We can now inform you that production at the Growrite production sites has...
> Continue reading

Out now: the latest Grow-How!

The latest edition of our newsletter Grow-How! is now available. In this edition we inform you about the sustainable cultivation system that allows organic cultivation apart from the soil. Van der Knaap Group developed a bioreactor that converts proteins...
> Continue reading

Compact cultivation of kalanchoe without the use of Tilt

Van der Knaap has researched compact cultivation of kalanchoe in collaboration with the growers of Blos5. Blos5 is a cooperative of kalanchoe growers who work together in the areas of purchase, sales, marketing and cultivation. The research focused on...
> Continue reading

Weed control with TopControl

Weed control in pot and container cultivation is a challenge for many growers. Due to the limited application possibilities of pesticides, a lot of time must be spent on weeding weeds and moss during cultivation and delivery work.
> Continue reading

Satisfied students after using Forteco Power in All Climate Greenhouse

The first educational project in the All Climate Greenhouse in the World Horti Center has been successfully completed. Students of the MBO Westland have grown cherry tomatoes in this high-tech greenhouse from September 2019 up to and including January...
> Continue reading

New Holland Potgrond mixing line ready

In recent months, Holland Potgrond Poeldijk has been working tirelessly on the installation of a new mixing line. The existing loading line has been replaced by a new, fully equipped mixing line. In doing so, Holland Potgrond has invested in expanding...
> Continue reading

Influence of substrate on shelf life of Phalaenopsis

Earlier this year, the Post-Harvest Knowledge Centre of FloraHolland in Naaldwijk conducted a trial to investigate how the use of different substrates affects the shelf life of Phalaenopsis.
> Continue reading

Van der Knaap rises in the Hillenraad100

Last Friday the Hillenraad100 was announced during the annual HortiGala, which took place in the Ridderzaal (The Hague) this year. The list consists of the 100 leading companies in the Dutch horticultural sector. Van der Knaap Group finished number 28...
> Continue reading

Update on Holland Potgrond Poeldijk renovations

Renovations at Holland Potgrond in Poeldijk are in full swing. The existing loading line for potting soil mixtures is being replaced by a new, fully equipped mixing line
> Continue reading

Van der Knaap uses cookies to ensure that we give you the best experience on our website. Cookies shall be used only for functional and analytical purposes. If you continue without changing your settings, we'll assume that you are happy to receive all cookies from this website. Please read our privacy statement for more information.