- Greenhouse Plug Propagator - Dunnville (Ontario) Canada
- Head Grower new Tomato farm, Iowa USA
- Senior Grower Tomato, NSW Australia
- Grower Managers (5ha or 10ha) - Australia
- Rose Grower
- Farm Manager Tomato Greenhouse Nursery, Tunisia
- Sales Manager
- Gartenbaumeister (Deutschland) - Niederrhein
- Group Chief Operating Officer
Top 5 -yesterday
Top 5 -last week
Top 5 -last month
"DryGair gives grower the reins"
Grower Rinus van der Gaag and Eef Zwinkels
Marcel Vijverberg's nursery was the first Dutch grower to install two units. Pretty soon, he noticed the climate could be managed better. The plants grew healthier and more compact, without having to use growth inhibitors. This autumn, he installed another three units in the new part of the greenhouse. The grower's enthusiasm, and both parties' pride of the successful introduction, makes the nursery an ideal place for (potential) customers to look around.
DryGair works like a cold beer bottle straight out of the fridge. In the same way that liquids from the air attach to the cold glass, the liquid matter attaches to the cold panels in the DryGair unit. Humid air is sucked in at the side and is blown back into the greenhouse at the top, after having been dried and warmed up a bit. The water runs into a bin along the panels and is led away through a hose. The machine should hang or stand somewhere - preferably in the middle of the greenhouse, although this is not strictly necessary - and could be placed on wheels, if required. The water that comes out is clean and can be used for irrigation.
"In Next Generation Growing, the windows are kept closed as much as possible," Eef explains. "Energy-wise, that's a smart move, but what about humidity? That was the original idea of DryGair: is it possible to evaporate while still limiting heating costs? It's possible, but that also changes cultivation methods. A revelation that resulted from this move: when the windows are closed, it's possible to create an active, lively climate on wet and grey, rainy days as well."
The larger model dehumidifies 22,000 m3 per hour, extracting 30-55 liters of water (depending on the greenhouse air temperature). One unit suffices for 1,500-8,000 m2, depending on the crop, and in particular vaporization and the space above the crop. The investment can be recovered within years, thanks to the savings made on gas and the heat produced by the machine. What's more, a livelier climate makes for a more generative crop, and all sorts of problems - cracked tomatoes, fungi, botrytis, tarnished floors - are prevented.
Eef Zwinkels, former tomato grower, has been selling water technology for 30 years. He also followed the Next Generation Growing course, which, in addition to practical results, has increased his confidence in DryGair. "It's like a snowball effect. Growers are talking to each other, convincing each other. The modern grower can control all sorts of things, but humidity is often still a problem. By actively removing liquids from the air, growers now also have the reins in that respect!"
For more information:
Kwekerij Marcel Vijverberg
3155 DE Maasland
2691 PR 'S-Gravenzande
T: +31(0)174 44 61 00
F: +31(0)174 44 61 50
Receive the daily newsletter in your email for free | Click here
Other news in this sector:
- 2019-11-08 The Lowpad enters the greenhouse
- 2019-11-07 “You should never say you’re not there because then they will pass you by”
- 2019-11-07 Creating dawn and dusk conditions with LED
- 2019-11-04 Water silos are getting stronger...and higher
- 2019-11-04 "American greenhouse horticulture is way ahead when it concerns lighting"
- 2019-11-01 New virtual marketplace for growers and buyers launches in two weeks
- 2019-10-31 New FLIR thermal imaging cameras launched
- 2019-10-31 Sercom enters British horticulture with first climate computer
- 2019-10-30 Tiny spectroradiometer helps find spectral diet for plant and human
- 2019-10-30 "The ultimate goal is to close the water cycle"
- 2019-10-29 "Water management is more important than ever"
- 2019-10-28 Visiting the greenhouse without visiting the greenhouse
- 2019-10-24 Fluence LED grow lights now available at RF Agriculture
- 2019-10-23 Covering water buffers prevents evaporation and algae growth
- 2019-10-22 Solution for biofilm buildup and water pathogen launched in the U.S.
- 2019-10-21 US (TN): Special Growers receives large donation of LED lighting
- 2019-10-17 China: Developing intelligent agriculture and activating industrial spring water
- 2019-10-09 Italian flower grower to implement ground source heat exchange system
- 2019-10-08 Stimulatory effect of silver nanoparticles on the growth and flowering of potted oriental lilies
- 2019-10-07 UK: Highways England funding awarded to prove efficacy of plants in creating clean air zones