Roger Abbenhuijs van Vakblad Onder Glas

Search for key to soil resilience is logical

Resilience is a growing trend, not only in the greenhouse horticulture sector but also in society as a whole. A survey on parents’ attitudes
Peter Goudswaard (left), Simon van Mourik and Bram van Rens (right)

Big data poised to navigate growers to their targets

With cultivation so closely intertwined with the Internet and with the advent of crop and climate sensors, big data is becoming available to the
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
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
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
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
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
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