News archive
September 2026
August 2026
July 2026
June 2026
May 2026
March 2026
February 2026
January 2026
- Green Soil from Van der Knaap: a circular raw material for RHP substrates!
- Van der Knaap at IPM Essen
November 2025
October 2025
- Complete solutions for soft fruit cultivation at Morocco Berry Conference
- Organic strawberries from the greenhouse
September 2025
- Organic concept for professional horticulture at Canadian Greenhouse Conference
- Hydroponic lettuce and circular tomatoes
August 2025
- Forteco Fusion: loose-filled coco growbags
- Propagation on peat-free rooting media
- Development of a quality label for responsible coir production
- Total concept for pepper cultivation
July 2025
- Renewable and circular substrates
- Van der Knaap Group and Premier Tech join forces
- Read the latest Grow-How!
June 2025
March 2025
February 2025
January 2025
October 2024
September 2024
- Stimulating soil life ensures increased resistance in sweet pepper plants
- Ron van der Knaap appoints successor
July 2024
May 2024
April 2024
March 2024
October 2023
September 2023
August 2023
July 2023
April 2023
January 2023
December 2022
November 2022
July 2022
- Lentiz MBO Westland conducts research into circular greenhouse horticulture
- Sustainable chrysanthemum cultivation at Dümmen Orange
March 2022
January 2022
December 2021
November 2021
August 2021
- Organic cultivation of sweet pointed peppers in soil (pt 3)
- Substrate trial Lisianthus on ErfGoed cultivation floor
- Pot worm control by choosing the right substrate
July 2021
June 2021
April 2021
March 2021
February 2021
- Discover the possibilities of innovation centre 'de Kas'
- The perfect sensor for coco substrates
- Sustainable: drying plugs with geothermal heat
January 2021
December 2020
October 2020
July 2020
May 2020
April 2020
March 2020
February 2020
- Satisfied students after using Forteco Power in All Climate Greenhouse
- New Holland Potgrond mixing line ready
January 2020
November 2019
October 2019
- Update on Holland Potgrond Poeldijk renovations
- New state-of-art propagation plugs with Ellepot paper
August 2019
July 2019
- Westland alderpersons visit Van der Knaap Groep
- Van der Knaap joins the Greenhouse Horticulture Club of 100