News

Light in the greenhouse: will you choose quality or quantity?

21-06-2017

Light in the greenhouse: will you choose quality or quantity?

In recent years, there has been a lot of attention on diffused glass. Diffused glass gives better light distribution through the greenhouse, with deeper penetration into the crop. Also, Cultilene has noticed a growing interest in extra clear glass with a double AR coating that gives a considerable increase in light transmission. Whether a grower favours diffusion or light transmission depends on various factors, including cultivation strategy, location and marketing period, among others.

Most growers are familiar with the advantages of diffused glass: more light dispersion and a more uniform horizontal light distribution. This decreases the shadow effect in the greenhouse and gives a more even climate. The light also penetrates deeper into the crop to give more photosynthesis. 'Ten percent more haze (light dispersion) usually increases yield by one percent', says Ralf Derksen, Product Manager for Glass at Saint-Gobain Cultilene. 'At the same time, however, a rule of thumb is that one percent more light will increase yield by one percent. This means that, in the greenhouse, both the quality and quantity of light play a role.

Customised solutions

For the best possible light conditions, a grower should opt for the highest percentage of diffusion combined with the highest possible light transmission. The problem is, however, that these two factors cancel each other out: the higher the haze factor (diffusion) of glass, the higher the reflection and the lower the light transmission. Particularly during winter months, when the sun is low in the sky, the light transmission of diffused glass is inferior to that of clear glass. 'Growers therefore need to choose between diffusion and light transmission', Ralf Derksen explains. ‘Naturally, it's also possible to opt for a middle ground: the best of both worlds.' There is no single answer to the question of which strategy is best. Various factors go into choosing a certain type of glass: a grower's growing method, greenhouse location, whether or not assimilation lighting is used, desired harvesting period, etc. The right choice will always be based on a customised solution.'

Diffused and clear glass

Saint-Gobain Cultilene has noticed that both its diffused Albarino glass with AR (anti-reflection) coating and its extra clear float glass with double AR coating are liked by growers. Under wet conditions, Saint-Gobain Cultilene’s special hydrophilic AR coating increases light transmission by several percent. 'We're also seeing an increasing demand for our extra clear, low percentage iron oxide float glass with double AR coating: a unique product supplied only by Saint-Gobain Cultilene. This glass admits very high rates of PAR and UV light. With UV light, you easily increase your yield by 10 percent as compared to diffused glass with a double AR coating An increasing number of growers are becoming aware of this added value: we have now realised projects for crops such as lettuce, tomatoes and strawberries, to name but a few.

Durability

Derksen emphasises that it's equally important for growers to consider the durability of the glass they select. 'Saint-Gobain can guarantee this durability because of the unique anti-reflection treatment it provides. During the hardening process, the chemical reaction which happens between the AR coating and the glass fuses both into a single, uniform substance. Dirt collects on the glass slower, so ensuring that light transmission is safeguarded for a good number of years. High light transmission when buying your glass is great, but this quality should be maintained for at least another ten years. In short: choosing Saint-Gobain glass is not only a durable, but also a sustainable choice.'

Light in the greenhouse: will you choose quality or quantity?

In recent years, there has been a lot of attention on diffused glass. Diffused glass gives better light distribution through the greenhouse, with deeper penetration into the crop.

21-06-2017

Light in the greenhouse: will you choose quality or quantity?

Make the right choice and use of your water buffer

The choice of the right amount of water buffer (or available water) and its use can influence: better plant balance, an efficient and healthy root system and better yield.

11-05-2017

Make the right choice and use of your water buffer

Sweet Pepper Growing Systems: Traditional and V systems compared

There is a choice for pepper growers between a traditional system and the V system. What are the advantages and disadvantages of these systems and why do growers opt for one or the other? Two growers talk about their own thoughts and experiences.

04-05-2017

Sweet Pepper Growing Systems: Traditional and V systems compared

Availability Cultilene

The offices and warehouses of Cultilene are closed on: 17 and 27 April, 25 May and 5 June.

13-04-2017

Meet Cultilene at the Horticultural Trade Fairs

Fruit Logistica, Berlin: Holland Pavilion, D-08 / Horti Contact, Gorinchem: booth 241

08-02-2017

Meet Cultilene at the Horticultural Trade Fairs

Cultilene won the Silver Innovation Award at the Sival

Cultilene looks back at a positive and successful Sival where we introduced our Cultilene Smart Root Zone Management App

27-01-2017

Cultilene won the Silver Innovation Award at the Sival

SympHO2ny: world premiere pH monitoring in stone wool substrate

10-06-2016

SympHO2ny: world premiere pH monitoring in stone wool substrate

Horticultural Connection with Mexico has been established

The public-private partnership Horticultural Connection has officially been formed.

01-06-2016

Horticultural Connection with Mexico has been established

Jérôme Crenn: "More and earlier root development"

(Jérôme Crenn) In 2016-2017, Thomas Plants is set to develop the use of RootmaXX cubes.

17-05-2016

Jérôme Crenn:

Unique project

Sundrop Farms from Adelaide (Australia) has been elected by peer tomato growers as the third winner of the Tomato Inspiration Award on February 4th in Berlin.

08-02-2016

Sundrop Farms wins Tomato Inspiration Award 2016

Nominated

Two new Saint-Gobain Cultilene products have been nominated for the SIVAL innovation award. SIVAL takes place from January 12 - 14 in Angers (France)

16-11-2015

Exact Air and RootmaXX nominated for SIVAL 2016 award

Effective measuring

Saint-Gobain Cultilene has developed measuring protocols to standardize the way of measuring and to turn it into a procedure.

14-10-2015

Important to know what's going on in slabs

Good start

On Wednesday June 10th the first edition of a new netwerk event took place in De Lier and met the Synergy objectives.

15-06-2015

First edition The Synergy of Growth turns out to be a great networking party

Sponsor new event

On June 10 2015 Cultilene and 7 other A-brand companies will organize 'The Synergy of Growth' event for international relations.

11-05-2015

June 10 2015:  'Synergy of Growth'  event for international growers

System design

Drip system, watering method and the substrate volume are often not properly geared to each other. We help you out.

15-04-2015

Growers miss out on quality and revenues

Top Employer in Europe

Saint-Gobain has been certified Top Employer 2015 by an independent organization that studies the HR policies & practices of leading companies around the world.

23-02-2015

Saint-Gobain awarded by Top Employers Institute

Cultilene partner TIE15

On February 5th the second Tomato Inspiration Event (TIE) will be held in Berlin. From 200 peers the new winner of the TIE award 2015 will be elected.

16-01-2015

Tomato Inspiration Event once again draws the world's top tomato growers to Berlin

Tomato Event 2015

The second edition of the Tomato Inspiration Event will be held on 5 February in Berlin. Theme is crop & process innovation.

02-12-2014

Who will be elected as the most innovative tomato grower in the world?

Innovative role to be developed further

Bonny Heeren - Managing Director of Saint-Gobain Cultilene - shares his vision on how to accelerate innovation.

17-11-2014

Shortening the learning curve together

Thomson Reuters ranking

For the fourth year in a row, Saint-Gobain has been included in the Thomson Reuters Top 100 global innovators ranking.

10-11-2014

Saint-Gobain again in top 100 Global Innovators

We try harder

At the Dutch Hortigala that took place in Rotterdam on October 31st, the Hillenraad 100 2014 has been presented.

03-11-2014

Finally in Hillenraad 100 with positive feed back from the expert committee

Indoor jungle decorated

In close cooperation with Fachjan Projects Cultilene has realised the decoration and irrigation of the indoor jungle in the Wroclaw Zoo.

25-09-2014

Cultiwall  in Afrykarium jungle Wroclaw

Too many failures

Mistakes due to wrong system design and effective monitoring result easily in damage to roots, plants and drippers.

24-09-2014

Make sure you understand your irrigation system

Cultilène sponsors event

On September 24th and 25th the British Tomato Conference covers the theme: Invitation to Innovation. Substrate supplier Cultilène sponsors the event.

12-09-2014

British Tomato Conference: An Invitation to Innovation

Theme Substrate & Soil

Due to high energy cost interest in management of the root environment is also increasing. Weekly Groenten & Fruit highlights the contribution of Exact Air.

08-09-2014

Smooth density gradient in stonewool mat provides a bottom layer richer in oxygen

Exact Air exceeds expectations

"We are positive and intend to use the Exact Air mats more extensively within our business in the coming year."

20-08-2014

Cultilene shows Prominent growers around in Poland

Based on Gradient Technology

Exact Air is going to be a new standard for crops on stonewool. Vertical differences of the Water Content, EC, pH and O2- level have never been less.

04-06-2014

Finally air everywhere in the slab

Cultilene reinforces technical support team

Saint-Gobain Cultilene dedicates two of its most experienced crop consultants for full support to and propagators in international horticulture

30-05-2014

Cultilene restructures technical support team

Present at Greentech

Sain-Gobain Cultilene will be present at the first Greentech in Amsterdam. This successor of the Hortifair will take place in the RAI from June 10 - 12.

05-05-2014

Active role at first Greentech

Stonewool hot in Australia

Muir & Sons is currently experiencing strong demand and growth for stonewool substrates. It is fast becoming the preferred growing media option.

23-04-2014

More and more Australian growers identifying advantages of stonewool substrates

Leader in energy efficiency

The U.S. Environmental Protection Agency has recognized Saint-Gobain's leadership for their energy savings and promotion of energy efficiency.

22-04-2014

Leader in energy efficiency Award

Water filtration solution

Saint-Gobain Weber has developed Filtralite to replace sand in filter units. Better performance at lower cost.

07-04-2014

New Weber solution for water filtration

CultiOne

In close cooperation with six leading plant propagators, Cultilène and Hordijk have developed a disposable EPS tray.

10-02-2014

CultiOne: a modern alternative to reusable trays

Windset Farms wins the Tomato Inspiration Award 2014

Today Windset Farms was declared winner of the Tomato Inspiration Award 2014.

06-02-2014

Windset Farms from Canada is the world?s best tomato grower in marketing and sales.

Response to Tomato Inspiration Event

More than 200 tomato growers will attend the first Tomato Inspiration Event on February 6th in Berlin.

27-01-2014

The Response to Tomato Inspiration Event is overwhelming.

Distribution diffuse glass

Van Looveren and Saint-Gobain Cultilene supply high-quality diffuse glass to the international horticultural industry.

14-01-2014

High-quality diffuse Saint-Gobain glass available via Van Looveren

Tomato Inspiration Event

The top 50 tomato growers in the world will meet on February 6th in Berlin to discuss marketing challenges in their profession.

27-12-2013

Who will be world?s best tomato grower?