Learning

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

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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e-Gro — Unlock the potential of AI driven decision making
In today’s conditions, growing crops can be likened to performing sport at elite level. Green fingers and a passion for growing no longer guarantee good operating results. The goalposts are constantly being shifted. Stringent environmental regulations and legislation, excessive demands placed by customers, fierce competition and small margins force growers to maximise the potential of their crops efficiently and sustainably. At the same time, the continuing trend of upscaling, the tight labour market (smaller pool of available labour) and dwindling numbers of experienced crop managers (vanishing expertise) are all obstacles along the path of achieving business continuity and success. Not just today, but also tomorrow and in the years ahead.
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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 campaign, EC — Steering and control of EC and WC in the slab under summer conditions
How does one optimise the slab EC and WC? As the longest day approaches, keeping the slab and the crop in the proper ‘rhythm’ is necessary for peak production and fruit quality under the most stressful and demanding period of the year.
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visual, whitepaper, TTL campaign, EC — Making informed decisions in respect to water and EC management
How to fine tune the irrigation strategy during spring & summer to avoid costly mistakes using tools such as the Grodan GroSens system and the graphics function of the climate computer.
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visual, whitepaper, TTL campaign, EC — Movement of water through plants
How a plant uses water and the interaction between root zone and aerial environments
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visual, whitepaper, TTL campaign, EC — Understanding and steering the root zone environment
Goals and targets for crop and root zone management in response to changes in plant development, fruit load and light levels.
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visual, whitepaper, TTL campaign, EC — Steering WC & EC at the start of the cultivation
Starting a new crop is always an interesting time of year. It’s an eagerly awaited fresh start however some decisions and actions we make now can have a big impact later in the cultivation.
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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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Grodan, visual, whitepaper, TTL, campaign — Maintaining summer fruit quality
Maintaining a good nutrient balance along with a well-executed irrigation strategy can help to avoid many of the common fruit quality disorders which are experienced over summer. Standard feed recipes are available from all analytical laboratories and it is important that you take samples of water from within the slab on a regular basis so that the feed solution can be adjusted in order to maintain the correct nutrient ratios throughout the summer.
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Grodan, visual, whitepaper, TTL, campaign — Optimizing nutrition to minimize fruit quality disorders
Maintaining a good nutrient balance in the root zone can help avoid many common fruit quality disorders. Standard feed recipes are available from all analytical laboratories and with a regular analysis of the root zone solution the feed solution can be adjusted so that optimum nutrient ratios are maintained.
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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. Stone wool is both clean and inert, making it ideal for producing hydroponic lettuce and other leafy greens.
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20190104-GR-PHO-201

Learning

Grodan User Instruction Videos

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

20200410 GR PHO 5153

Advice

14 Nov 2018

Preparing for a new crop

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

20200525 GR PHO 5206

Advice

14 Nov 2018

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.

20200410 GR PHO 5150

Advice

14 Nov 2018

Nutrient management

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

20200410 GR PHO 5171

Learning

What is EC?

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

20181022 RW-GR PHO 9

Learning

What is pH?

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

20200410 GR PHO 5140

Learning

General concepts in plant nutrition

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

20190703 RW GR PHO 5044

Learning

Bacterial canker

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

20190215 GR PHO 521 egro commercial stills

What is EC?

EC management

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

20190417 GR PHO 4024

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.

20190417 GR PHO 4034

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.

20181106 RW-GR PHO 52

Learning

NG2.0 Technology

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

20210514 GR PHO 5458

Recycling Solutions

Recycling Solutions

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

20181112 RW-GR PHO 77

About

Grodan 6-phase model

The Grodan 6-phase model offers a blueprint for optimal crop results during both each cultivation phase and the entire cultivation period.

20190417 GR PHO 4017

Grodan

Solutions

Grodan enables Precision Growing with the combination of stone wool growing media, innovative growing tools and personal advice.

20200410 GR PHO 5168

About

About Grodan

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

20181023 RW-GR PHO 31

Thought Leadership

The challenge: higher production using less water

Hydroponic greenhouse cultivation is on the rise all around the world.

Keep informed

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