Paul and Marcel van den Broek: “The more even climate plus the longer screening can result in 10 per cent energy savings per kilo of product.”

“I get goose bumps from such evenly coloured tomatoes”

The air above an energy screen is much drier than that below it. Currently around 20 companies in The Netherlands are making use of
A thermal camera took an image of the tomato crop every ten minutes over a six-week period.

Intensive screening promotes transpiration from the top

Reducing energy consumption in greenhouses is associated with higher humidity levels. Many growers are concerned that this could make the crop less active, impacting
CropObserver

CropObserver offers growers more insight into a plant’s growth process

Growers are, of course, keen to ensure that their crops grow as optimally and quickly as possible. An efficient – or more efficient –
Dehumidification trial at van Koppen nursery Dehumidifier boosts yields, cuts disease pressure and saves energy

Dehumidifier boosts yields, cuts disease pressure and saves energy

A giant dehumidifier in cherry tomato grower Robert van Koppen’s greenhouse in Kwintsheul (Westland, the Netherlands) keeps the RH below the critical value of
Grower Rob Olsthoorn of OK Plant deliberately opted for a triple screen for his new greenhouse so as to make it as closed an environment as possible.

OK Plant opts for triple screen to boost quality even further

Next Generation Growing has played a major role in the choices Dutch orchid grower Rob Olsthoorn of OK Plant is making for the new
A different growing strategy is a potential key to saving energy. An important part of this is to slow down transpiration.

Slowing down crop transpiration cuts energy consumption

The focus of energy savings usually lies in technology. But the crop itself offers numerous opportunities to economise on energy consumption. Many research results
Limiting light emissions called for creative solution

Combining two vertical fans makes for more even climate

Assimilation lights give off a lot of heat which stays at the top of the greenhouse when you would rather have it down near
A tomato grower is the first to gain experience with an anti-condensation coating for glass.

First grower sheds more light on anti-condensation coating

In the past, greenhouse roof light transmittance has always been measured when the roof was dry. But a greenhouse roof spends half the year
Golden Fresh Farms, based in Wapakoneta, Ohio, USA, has recently completed phase one of what will become an 32 hectare high-tech greenhouse facility for tomatoes.

Pioneering climate control solution in tomato greenhouse

Golden Fresh Farms, based in Wapakoneta, Ohio, USA, is a high-tech tomato producer selling to leading grocery retailers in North America. In Greenhouses spoke
Lebanese greenhouses

Strengthening the Lebanese horticulture sector

We are working with Lebanese researchers to build mono tunnels that will improve vegetable production and simultaneously reduce water consumption. Yields of tomatoes and
Tomatoes in the 2SaveEnergy greenhouse

Strong tomato crop with less gas in 2SaveEnergy greenhouse

In a Cappricia crop in the 2SaveEnergy Greenhouse, we are seeing how far we can go with limited ventilation. Among other things, an average
The Chinese Solar Greenhouse

Good start to cucumber cultivation in Chinese Solar Greenhouse

There are around one million hectares of greenhouses in China. Many of these are so-called ‘’Solar Greenhouses’: greenhouses with a wall that stores solar
Transpiration by a plant has two important functions: The uptake and transport of nutrients and cooling.

Transpiration is driver behind cooling and uptake and transport of nutrients

The plant can’t function without transpiration. But sometimes it can be somewhat less. Also less than is commonly used commercially. There are plenty of
Smart CO2 dosing by listening to the plant

Smart CO2 dosing by listening to the plant

The gas carbon dioxide (CO2) is a raw material for photosynthesis. From this, together with water, the plant makes sugars and other compounds. Therefore
Simply hanging the fans will not deliver best results

Simply hanging the fans will not deliver best results

Good air circulation in the greenhouse is an energy efficient alternative to using the minimum pipe rail for growers working with Next Generation Growing.
Young fruits pull so hard, flowers above abort

Young fruits pull so hard, flowers above abort

Sweet peppers arrive in waves. New fruits lure so many assimilates towards them that the flowers above them abort. This article provides various suggestions