Grodan 6-phase model

Growers’ needs for structured cultivation information are continually increasing due to the improved insights into cultivation, development of new cultivation systems and the continuing increases in the scale of horticultural operations. The Grodan 6-phase model offers a blueprint for optimal crop results during both each cultivation phase and the entire cultivation period.

Greenhouse filled with swett pepper plants

Each phase is characterized by a specific development of the crop that imposes specific requirements in that phase. Consequently, the advice for each phase needs to be tailored to the specific stage and take account of the crop and rooting climate.

The Grodan 6-phase model not only assists growers in the selection of the appropriate substrate slab for a specific crop, but also helps then to determine the optimum watering strategy for the specific type of slab in each cultivation phase. The model can also assist in the determination of schedules for the plant load, temperature regimes, fertilization schedules, and CO2 and lighting levels. Users of the 6-phase model receive an e-mail with the relevant cultivation recommendations before the beginning of each cultivation phase.

Our latest blogs

20211201 RW-GR PHO 5618
By Grodan
Water Management
Sustainable Growing

Exploring the sustainable world of horticulture: Innovations and practices for commercial greenhouse growers

Horticulture offers sustainable agriculture through Controlled Environment Agriculture (CEA), growing diverse crops in high-tech greenhouses. Explore innovative technologies and practices in commercial greenhouse projects.

WUR and Dutch Cotton - Cotton & Ginning-13
By Joyce Rasquin
Water Management
Sustainable Growing

The future of sustainable denim: G-STAR's homegrown denim initiative

Grodan and G-STAR unveil Homegrown Denim on May 29, 2024, a sustainable fashion milestone in collaboration with Wageningen University, Dutch Cotton, and Inno Growers.

Grodan greenhouse roof
By Emmanouela Alexopoulou
Water Management
Sustainable Growing

Greenhouse Energy and Irrigation Management leads to efficiency in high tech greenhouse environments

It wasn’t that long ago, in the early 2000s, that greenhouse growers were working without climate screens or even lighting crops over winter. Andrew Lee, Knowledge Manager at Grodan, says that energy efficiency was nowhere near where it has come today.

20240429 RW-GR PHO 1345
By Emmanouela Alexopoulou
Sustainable Growing

Demystifying stone wool for strawberry cultivation

There is mounting evidence that stone wool offers clear benefits for strawberry cultivation growers in high-tech greenhouse environments. But how easy is it to achieve those benefits in practice? And what are the biggest challenges? We asked Vera Theelen, Researcher Soft Fruit at the Delphy Innovative Soft Fruit Centre (ISFC), to share details of her own experiences.

Grodan Newsletter

Do you want to learn more about Grodan? Feel free to sign up to our newsletter. Grodan ensures that growers can make optimum use of its products and services by interpretting the company’s knowledge of and experience with substrate cultivation in terms of up-to-date, crop-oriented advice. Ranging from tailor-made advice from crop consultants to newsletters, seminars and training courses and articles in trade journals.

Grodan, product