Switchable optical filters: the future of greenhouse covering materials?

Switchable optical filters: the future of greenhouse covering materials?

One of the main tasks of the Smart Materials project was completed last year. Greenhouse simulation models were used to explore the potential effect ...
Education, business and research meet in challenging Dutch project

Education, business and research meet in challenging Dutch project

The World Horti Center was officially opened by Queen Máxima of the Netherlands in March 2018, although the building in the Dutch town of ...
“It’s all about the right balance between yield and fruit weight”

“It’s all about the right balance between yield and fruit weight”

Grow light is gaining ground among high-wire cucumber growers. Reijm & Zn in Berkel en Rodenrijs in the west of the Netherlands are among ...
Herbert Stolker Senior Consultant Africa

Making headway in East Africa

Unlike roses, the protected vegetable sector in Kenya is still quite small-scale. On a recent trip there I set out to find some larger ...
Cleaning greenhouse glass regularly should be a no-brainer

Cleaning greenhouse glass regularly should be a no-brainer

Measurements in greenhouses reveal that light transmittance through the roof improves by around five percent after the annual clean. And it just so happens ...
Spread of plant viruses calls for vigilance

Spread of plant viruses calls for vigilance

Viruses are among the smallest pathogens infecting other living organisms. Plants are also susceptible to a large number of viruses that can cause serious ...
Propagation via grafting and cuttings has big impact on plants

Propagation via grafting and cuttings has big impact on plants

Propagation by means of cuttings and grafting has a dramatic impact on the plant. Cuttings need to form new roots and vascular bundles have ...
Crop protection products much more effective with adjuvants

Crop protection products much more effective with adjuvants

Crop protection products are sometimes unfairly labelled as losing their efficacy against pests or diseases. On closer investigation it becomes clear that these products ...
Mycosphaerella

Mycosphaerella

The fungus Mycosphaerella, also known as Didymella bryoniae, can cause serious problems, particularly in cucumber cultivation. It can infect leaves, stems, flowers and fruits ...
German company grows pot plants and bedding plants for upper segment

German company grows pot plants and bedding plants for upper segment

Quality is the top priority at Gärtnerei Wolter in Babenhausen, Germany, where Ute Gorges and Jörg Wolter specialise in supplying pot plants to the ...
“Hygiene protocol and resistant varieties go hand-in-hand”

“Hygiene protocol and resistant varieties go hand-in-hand”

As a cucumber grower you have to have iron discipline and nerves of steel. An apparently invisible enemy – CGMMV – is always lurking ...
Double screen plays key role in quest for uniform climate

Double screen plays key role in quest for uniform climate

Don’t throw away your old shoes before you get new ones – that’s an adage the Dutch sweet pepper grower Stephan Persoon firmly believes ...
Prey diets greatly improve biological control by predatory mites

Prey diets greatly improve biological control by predatory mites

Predatory mites are the most important natural enemies used for biological pest control in greenhouse horticulture. Many of these predatory mites are mass-reared on ...
Poor maintenance can slash life span of spray robot by half

Poor maintenance can slash life span of spray robot by half

In many large vegetable, flower and pot plant nurseries, a spray robot moves back and forth automatically along a pipe rail or monorail system ...
Toine Overgaag: “Growing a new crop is a challenging opportunity. But we now produce some 2.8 million plants annually and rank among the top three growers in the western US.”

Business in Trumpland

Since November of 2016, with almost every vendor from abroad, whether they’re a greenhouse builder from Holland, an orchid breeder from Taiwan, or a ...
Researchers “grow” model of ideal plant in simulated greenhouse

Researchers “grow” model of ideal plant in simulated greenhouse

3D modelling is set to play an ever greater role in research. It’s an important tool in the quest to design better LED modules, ...
Roger Abbenhuijs van Vakblad Onder Glas

Advance of LEDs seems unstoppable despite critical noises

What does it say about a technical development in greenhouse horticulture when there is a marked increase in both research projects and practical trials? ...
‘Focus is on looking for efficiencies and further increasing our yields’

‘Focus is on looking for efficiencies and further increasing our yields’

New Zealand Gourmet was founded in 1985. It started off growing and exporting capsicums (bell peppers) to Japan, and blueberries and other crops such ...
Need for resilient crop stimulates interest in silicon

Need for resilient crop stimulates interest in silicon

The use of silicon fertilisers is clearly on the rise. Silicon can strengthen the resilience of the crop, and with an ever declining range ...
In the past the use of rootstocks represented an important step in the fight against soil-borne diseases. But rootstocks offer many more possibilities: Improved vigour, setting, flower and fruit quality.

Rootstocks: an extra instrument to achieve production goals

In the past the use of rootstocks represented an important step in the fight against soil-borne diseases. But rootstocks offer many more possibilities: Improved ...
Solar energy project at Sundrop Farms among Clean Energy Award finalists

Solar energy project at Sundrop Farms among Clean Energy Award finalists

The large solar project that provides Sundrop Farms Australia with energy and fresh water is nominated for the Clean Energy Council’s 2018 Innovation Award ...
Emirates Flight Catering invests 40 million dollar to build the world’s largest vertical farming facility.

Caterer builds world’s largest vertical farming facility

Emirates Flight Catering invests 40 million dollar to build the world’s largest vertical farming facility. In this facility, located near Dubai International Airport, the ...
The Sweeper consortium was invited to hold the first live demonstration of its new sweet pepper harvesting robot at the De Tuindershoek greenhouse horticulture firm in IJsselmuiden. The so-called ‘Sweeper robot’ is the world’s first harvesting robot for sweet peppers to be demonstrated in a commercial greenhouse.

First demonstration of new sweet pepper harvesting robot in the greenhouse

The Sweeper consortium was invited to hold the first live demonstration of its new sweet pepper harvesting robot at the De Tuindershoek greenhouse horticulture ...
The use of Direct Current in greenhouse horticulture appears to be a very promising alternative. A pilot in the greenhouse horticulture sector demonstrated a positive business case for the use of Direct Current (DC) for greater durability of components, as well as cost and material savings.

Direct Current highly promising alternative in horticulture

The use of Direct Current in greenhouse horticulture appears to be a very promising alternative. A pilot in the greenhouse horticulture sector demonstrated a ...
Tomato grower Geert Koot from Dutch tomato nursery Gebroeders Koot

New LED lamp rates highly in hybrid lighting trial

A trial with hybrid lighting (SON-T + LED) at Dutch tomato nursery Gebroeders Koot has yielded good results. The LED lamp used in the ...
Rob Schoones, team leader of the Priva Academy: "The Priva Academy is a learning environment developed for the Priva organisation worldwide. At present, we are also using this environment to train our partners in the fields of Vertical Farming/Indoor Growing as well as Building Automation and Horticulture."

Presenting the proud winners of the GreenTech Innovation Awards (2)

Four companies were the recipients of a GreenTech Innovation Award, conferred last Tuesday after the opening of the trade fair in the RAI Amsterdam ...
Sales Engineer Richard Groenewegen from Visser Horti Systems

Presenting the proud winners of the GreenTech Innovation Awards (1)

Four companies were the recipients of a GreenTech Innovation Award, conferred last Tuesday after the opening of the trade fair in the RAI Amsterdam ...
The rising popularity of vertical farming was clearly demonstrated at the GreenTech trade fair, held this year from 12 to 14 July in the RAI Amsterdam Convention Centre. GreenTech Amsterdam organised the GreenTech Amsterdam Vertical Farming Pavilion for the second time in a row, in collaboration with the Association for Vertical Farming.

Vertical farming goes to horticulture without horticulturist via data and AI

The rising popularity of vertical farming was clearly demonstrated at the GreenTech trade fair, held this year from 12 to 14 July in the ...
The ISO++ double screen system from Bom Group is unique in the horticultural industry. It is an innovative double screen system which lets more light through and saves more energy.

Innovative double screen system

The ISO++ double screen system from Bom Group is unique in the horticultural industry. It is an innovative double screen system which lets more ...
Gridmap is the new technology for moving your harvest trolley in the greenhouse without rails. Now, for the first time, a harvest trolley can move around a greenhouse entirely without rails in the concrete floor or processing area.

Move your harvest trolley with new technology

Gridmap is the new technology for moving your harvest trolley in the greenhouse without rails. Now, for the first time, a harvest trolley can ...