Knowledge

Grodan ensures that growers can make optimum use of its products and services by interpreting 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.

Learning & advice

Read Our Technical Whitepapers

Whitepaper mock-up Grodan Fluence strawberry trial — How stone wool and lighting can change the game for strawberry growers
Grodan and Fluence, two leading horticultural solution providers, have completed an innovative demonstration trial aimed at exploring the opportunities for year-round cultivation of everbearing strawberries in a controlled environment.
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Mock-up low energy tomato growing end of trial whitepaper — Low-heat full-LED tomato trial achieves 50% reduction in heat
To help growers find a solution for cultivating a full-LED winter lit crop with a low heat input without impacting on yield or quality, Philips Horticulture LED Solutions and Grodan ran a joint trial at Botany Research Center, the Netherlands.
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Mock-up Strawberry whitepaper water management — Optimising water and nutrient management in strawberry cultivation
Why stone wool stands out in indoor strawberry cultivation? The choice for growing media is made prior to the start of each cultivation cycle and is important to achieve the most from a crop, specifically for strawberry cultivation.
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Strawberry whitepaper mock-up — The opportunities of indoor strawberry cultivation
Global strawberry cultivation is at a turning point. Growers are faced with sharp cost increases, while they also need to continue to guarantee high quality and consistent products, as consumers demand healthy, fresh fruits throughout the year. That is why commercial strawberry propagators and growers are constantly looking for ways to optimise their growth strategy, maximise their yields and minimise their costs.
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Mock-up strawberry whitepaper higher value is here — Whitepaper: Higher value is here
A recent trial by Grodan has demonstrated that strawberries can be propagated and cultivated on a stone wool substrate while maintaining high quality and attractive fruit size. Additionally, the yields and Brix values were higher than with traditional methods.
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Grodan, visual, Whitepaper, Gursel Karacor — Importance of data driven growing
Data science and AI technologies present us with so many opportunities to collect and mine data in the greenhouse. This paper will help you begin your journey to get the best out of your greenhouse data. There’s a bright future ahead!
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e-Gro — The start of data driven growing
High-tech greenhouse horticulture is preparing for a new, global transition to data-driven growing practices. In Horticulture 4.0, countless sensors and measuring systems collect a constant flow of data on growth conditions and the functioning of crops, from both visible parts of the plants as well as in the root zone environment. These multiple data flows and their correlation are analysed centrally and translated real-time into setpoints using sophisticated growth models and smart, self-learning software. The recommendations can be used to maximise the expected operating results. This is the ultimate form of Precision Growing.
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visual, whitepaper, TTL campaign, EC — Monitoring nutrient balance, pH & EC in the root zone
The composition of the nutrient solution should be appropriate to the needs of the crop. One of the benefits of using Grodan stone wool substrates is that the nutrient composition is under total control of growers. However the uptake of particular nutrients varies constantly with growth and fruit load therefore the nutrient balance, pH and EC in the root zone is also constantly changing.
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visual, whitepaper, TTL, EC — Improving tomato fruit quality
Have you ever wondered why at certain times of the year tomato crops are more susceptible to fruit quality disorders? For the most common physiological disorders namely blossom end rot (BER) and uneven colour (blotchy ripening) this whitepaper explains their cause and prescribes simple solutions to avoid / minimise risk of symptom expression in the first place.
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Grodan, visual, whitepaper, TTL, campaign — Irrigating in changing weather conditions with minimal drain volumes
The volume of irrigation water applied per square meter is linked to radiation sum as a general rule in the ratio 3.0 ml per joule. The exact figure will ultimately depend on outside weather influences such as wind speed, humidity as well as the greenhouse vent position. The question is whether this total drain volume is necessary or not? So what is the role of drain and what is a sufficient volume of the drain?
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Mockup strawberry article, Strawberry cultivation: Irrigating high tech greenhouse grown strawberries — Strawberry cultivation: Irrigating high tech greenhouse grown strawberries
This article explores innovative irrigation techniques for high-tech indoor strawberry cultivation using Grodan stone wool growing media. By leveraging its steerability, growers can precisely control water content (WC%) and electrical conductivity (EC), enhancing young plant quality and yields.
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Whitepaper, Grodan — Switch to Clean
Hydroponic lettuce and other leafy greens will soon start to dominate sales at supermarkets and chain restaurants. With up to 12 times the number of crops a year than from open fields and twice the crop density, no other production method can compete. Production environments must however be clean. Thanks to the high temperatures in its production process, stone wool is clean, making it ideal for producing hydroponic lettuce and other leafy greens.
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Introduction to stone wool

Stone wool and plant cultivation align seamlessly, transforming a bountiful resource for human benefit— a magical and exciting synergy.

Irrigation and nutrients

Root zone management

An introduction to root zone management and the role of Grodan’s stone wool growing media in the context of Controlled Environment Agriculture (CEA) and ‘Precision Growing’.

Crop consultancy

Grodan understands that it is crucial to provide professional propagators and growers with the right tools and technical support to further optimise the germination and cultivation processes. Crop-specific user advice therefore comes as standard with all deliveries of Grodan growing media.

Grodan User Instruction Videos

To further enhance the 6phase advice we launched a series of User Instruction Videos, to enrich and visualise the advice provided.

What is EC?

EC management

Precision Growing replaces the philosophy of achieving daily drain figures, emphasizing economic and legislative considerations.

Learning

What is EC?

Electrical conductivity (EC) measures total salts concentration in nutrient solutions, crucial for precision in greenhouse cultivation.

What is EC?

Effect of cycle size on EC refreshment and EC stability

To avoid common fruit quality issues such as BER in tomato and pepper it is important to have EC under control in time and stable between days.

What is EC?

Effect of early stop time and gift/radiation on EC behaviour

Grodan advises on maintaining stable substrate EC as light levels and temperatures increase, ensuring optimal crop growth.

Learning

What is pH?

The pH measures acidity/alkalinity. It describes H+ ion concentration in the feed, substrate, or drain water.

Advice

01 Dec 2024

Nutrient management

Nutrient recovery makes sense economically and environmentally. Why would you discharge valuable nutrients when they can be used again?

Learning

General concepts in plant nutrition

The essential nutrients required by higher plants are inorganic, distinguishing them from animals. Grodan emphasizes this distinction.

Advice

01 Dec 2024

Best Practice Guidelines for Greenhouse Water Management

Growing tomatoes in open fields needs 60L water per kilo, but in hydroponic greenhouses, it's only 15L. Hydroponics is more water-efficient.

Advice

01 Dec 2024

Preparing for a new crop

Give the new crop a good start with a thorough greenhouse clean during the 2-3 week turn-round period, ensuring optimal conditions for cultivation.

Learning

Bacterial canker

Identify and treat bacterial canker in tomatoes. Download the Nursery Management Plan for prevention and treatment guidance.

Crop Consultancy

Grodan 6-phase advice

The Grodan 6-phase model offers structured cultivation information for optimal crop results during each phase.

4 phase protocol

Grodan stone wool is an excellent medium for propagating young plants, with superior water retention and aeration. Understanding and applying the four key phases in Propagating in stone wool lays the foundation for a great grower's harvest.

Recycling Solutions

Grodan's recycling commitment, with over 62% of consumers using recycling services, achieves a 45% stonewool recycling rate.

Designed to Grow

Grodan's soilless growing system evolves continuously, promising high yields of consistent, high-quality crops for a growing population.

Learning

NG2.0 Technology

Next Generation 2.0 (NG2.0) is the latest substrate technology from Grodan.

About

About Grodan

We supply innovative and sustainable stone wool growing media solutions for the professional horticultural sector, based on Precision Growing principles.

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.

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How Grodan and Walker Environmental Solved a Waste Management Challenge

Whitepaper: The future of medicinal crop cultivation

Whitepaper: How Grodan and Fluence are mastering the art of growing medicinal crops

Whitepaper: Optimal irrigation strategy for large-scale production of medicinal crops

Sustainability

Knowledge

Learning & advice

Read Our Technical Whitepapers

How stone wool and lighting can change the game for strawberry growers

Low-heat full-LED tomato trial achieves 50% reduction in heat

Optimising water and nutrient management in strawberry cultivation

The opportunities of indoor strawberry cultivation

Whitepaper: Higher value is here

Importance of data driven growing

The start of data driven growing

Unlock the potential of AI driven decision making

Monitoring nutrient balance, pH & EC in the root zone

Steering and control of EC and WC in the slab under summer conditions

Making informed decisions in respect to water and EC management

Movement of water through plants

Understanding and steering the root zone environment

Steering WC & EC at the start of the cultivation

Improving tomato fruit quality

Irrigating in changing weather conditions with minimal drain volumes

Maintaining summer fruit quality

Optimizing nutrition to minimize fruit quality disorders

Strawberry cultivation: Irrigating high tech greenhouse grown strawberries

Switch to Clean

Grodan Newsletter

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