Special Climate

Environmental professionals promote biodiversity for new and veteran gardeners

The PHS Gardening for Biodiversity Symposium, held during the 2020 PHS Philadelphia Flower Show on March 4th at the Pennsylvania Convention Center, featured environmental professionals from around the world to address, educate, and increase awareness on important environmental issues throughout the day.…

Research into the quality of drainage water in soil-bound crops

In 2030 all Dutch growers will have to reuse the drainage water in their greenhouse. But with soil-bound crops, much is still unknown about the quality of that water. That is why the Greenhouse Horticulture and Flower Bulbs Business Unit of Wageningen University & Research is investigating the quality of…

Shading screens characterization by means of wind tunnel experiments and CFD modeling

The use of shading screens in the protected cultivation sector is widespread, due to the fact they allow both to reduce the heat load and thus to control temperature, and to have lower and uniform levels of light intensity inside greenhouses. An extended selection of shading screens is available on the…

What type of lighting is right for my indoor grow?

When it comes to fueling plant growth, lighting is one of the main ingredients of a maximum yield recipe. Figuring out if you want full natural sunlight only, a mixture of…

4 benefits of an automated controller in a vented greenhouse

Ceres’ patented solar design and innovative climate control technologies enable them to build year round greenhouses in any climate. Depending on geographic location, crop application, and specific client needs their greenhouses might operate with different types of ventilation, HVAC and other greenhouse…

Demonstration trial reduced CO2 dosing

CO2 supply in a greenhouse promotes crop growth. In the future the supply of CO2 has to be reduced considerably because the availability of CO2 from industry will be reduced due to CO2 emission goals, the use of natural gas for heating is reduced, and the greenhouse horticultural sector has the goal to…

Comparison of greenhouse energy requirements for rose cultivation in Europe and North Africa

The ornamental plant production in greenhouses is widespread. A quantitative assessment of greenhouse energy consumption and its variability in space and time is strategic to improve the sustainability of the cultivation. The specific environmental features of the cultivation areas can strongly affect…

“Warm winter makes regular boiler maintenance possible”

Wintertime is usually a period of running around from one malfunction to another for boiler mechanics. This year is no exception, although the 'summer-like winter' does decrease the amount of malfunctions and makes more room for regular maintenance, says Erwin van der Mark of boiler maintenance firm Van…

Colder outside air ingeniously mixed with greenhouse air

"As you can see, it looks quite 'space age' and industrial and that has its reasons", says Hans Weisbeek of Hinova in a segment on Dutch regional television about the development of the Hinovator. The regional TV channel sees there are quite a few horticulture suppliers in the region, and that those…

Input external CO2 in greenhouses yields at least 91% CO2 emission reduction

Does the input of external CO2 help reduce greenhouse horticulture CO2 emission in 2030? It does. That is the answer researchers from Wageningen University & Research gave in…

Ton Habraken (Svensson) about Plant Empowerment

"Screen more and more a tool for better plant growth too"

"While a screen was usually seen as a way to bring down your energy bill, it is now more and more used as a tool for better plant growth", says Ton Habraken of Ludvig Svensson. It's a development that fits Plant Empowerment, the new way of growing that's largely promoted with both a book and a platform.  Concept…

Climate change research with plant chambers

Scientists at the British Columbia Institute of Technology (BCIT) in Canada are leading the way when it comes to solving problems such as how to feed a growing population and alleviating the effects of climate change.   BCIT is focusing on experimentation with the C4 plant Setaria which tolerates hot and dry conditions…

Semi-transparent dye-sensitized solar panels for energy-autonomous greenhouses

Over 60% highly transparent quasi-solid-state dye-sensitized solar cells (DSSCs) with dimension of 50x50 cm 2 were fabricated via inkjet printing process using nanocomposite inks as raw materials and tested under outdoor illumination conditions. The cells were electrically characterized, and their…

US (TX): North Haven Gardens rebuilds after Dallas’ October tornadoes

Four months after violent weather caused $2 billion worth of damage across a wide swath from northwest Dallas to Richardson, hundreds of homeowners and business owners are still deciding whether to rebuild or move on. At North Haven Gardens, the Pinkus family says, along with the initial disbelief and…

New findings unravel how plants control energy generation

Researchers at Western Sydney University and The Australian National University have discovered new chemical communication pathways that determine how a plant changes when it emerges from darkness in the soil to light. When plants are grown in the dark, they are white or pale-yellow because they lack the…

"Solar energy can do more than make plants grow"

One percent more light is one percent more production - it's a popular statement in horticulture. However, the sun has more value than that, that’s what they think at Arcon-Sunmark. At the HortiContact, they explained how solar thermal energy can be appealing to greenhouse horticulture. "Certainly thanks…

Why tulips grow best in cold weather

Tulip bulbs, also known as modified roots, follow their own rules when it comes to growing. Unlike other flowers that will start to bloom as the days lengthen with the coming of spring, tulips will only start to flower when they are ready. Tulips also don’t like the heat given off by too much direct…

A first for Honduras: wireless control irrigation unit

It is not the first country that comes to mind when people think about high-tech greenhouse horticulture innovations, but Honduras recently did have a scoop. At grower Exveco, Sercom installed the very first fully wireless irrigation system. “We have developed this product based on radio technology. That…

Desch Plantpal interviews Yme Pasma, COO Royal FloraHolland

"RFH almost met most of the targets of the Plastic Pact for 2025"

A small country can play a big role: a third of the world's trade in plants and flowers takes place via the Netherlands. Besides involving considerable logistics, this also brings a huge responsibility to reduce waste – including plastic. Earlier this year, 86 leading companies and organisations signed…

UK: Shropshire rose growers hoping business will bloom after floods

Staff at Black Birches Garden Centre in Hadnall, were lamenting the weather long before the February storms due to ongoing wet weather delaying the harvesting and lifting of more than 30,000 rose plants. According to managing director Jon Jinks it created a logistical nightmare and gave sales figures a…

Jan Voshol takes a step back in the Netherlands, Wilco and Lennert at the helm

"I just keep getting myself involved in everything," says Jan Voshol with a wink. He just explained that last year he has transferred the shares of his company in the Netherlands to son Wilco and son-in-law Lennert. With that, both men are now officially at the helm at Voshol Warmte- en Elektrotechniek…

Plant Empowerment: a stress-free future for all plants

Plant Empowerment is synonymous with Next Generation Growing, where stress is no longer a factor. The use of climate screens can prevent plant stress to a significant degree. This in turn results in greater efficiency. Reason enough for Svensson to support a book and platform on this topic. Plant Empowerment – also known as…

Semi-closed greenhouses equipped with night cooling system

Semi-closed greenhouses are no longer only for areas with a temperate climate. For more extreme climates there are also solutions - creative solutions. Three years ago in Japan, greenhouse builder KUBO built their first Ultra-Clima greenhouse with a night cooling system for a rose cultivation company.…

Special Climate in FloralDaily this month

This month, we will pay more attention to the climate in greenhouses. Also in HortiDaily and in our Dutch newsletters, Groentennieuws and BPnieuws this subject will be highlighted. The articles related to climate are published in a Special box, named Special Climate. ClimateThe subject climate is broad.…


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