- Production Manager
- Assistant Professor - Controlled Environments Entomologist
- Technical Development Specialist | Horticulture | France
- Director of Business Development | Middle East | Agtech
- Farm/Production Manager; Berlin (m/w/d)
- Trader Asian Market
- Avocado Growing Manager - Kenya
- Operations Accountant
- Sales Manager for Nordic countries (H/F)
- Senior Breeder
Top 5 -yesterday
- What is the status of tomato brown rugose fruit virus in Europe?
- “Our ToBRFV-resistant variety has been preferred by our producers in wide areas since 2020"
- 2022 Year Overview: 10 stories on greenhouse expansion
- "Greek producers, who also purchase their plants from Spanish nurseries, have reported the same quality issue in strawberry plants as Spanish producers"
- New horticultural lighting technical requirements launched
Top 5 -last week
Top 5 -last month
- Zambia: "We produce 5,000 units of lettuce per week, per tunnel, year-round"
- UK growers stop planting and put nurseries on sale amidst energy crisis and labor shortage
- "You can't grow on water without lights"
- "High-tech farmer AppHarvest is running out of money"
- German family company switches from tomato cultivation to hydroponic lettuce
Dutch trial with glass over film
Combination of film and glass on the same greenhouse
The combination of EFTE film with glass has several advantages compared to using two layers of EFTE film or two layers of glass. Firstly, it is less expensive than using two layers of glass. Secondly, the Netherlands is considered as a “glass country”. Therefore it is expected that the Dutch growers will not be interested in foil greenhouses. Thirdly, glass transmits a smaller amount of infrared then EFTE. Therefore, the greenhouse will cool down less quickly at night, which is an advantage. However, due to the coatings on the glass, the same amount of sunlight (and therefore warmth) as the EFTE will be transmitted. Finally, dirt may prevent the transmission of sunlight, but this is not a problem for EFTE it repels dirt.
The opening between glass and EFTE foil will be left open. Therefore, the greenhouse air can flow between the two layers. This is important when snow lies on top of the greenhouse. Then, the ‘warm’ greenhouse air can be blown through the opening. If the space between the two layers will be isolated, the snow will stay longer on top of the greenhouse. They have learned this from a previous project.
The used EFTE-foil is diffuse and the glass is clear. This choice has been made because of the unknown condensation behaviour of diffuse glass as second layer. The transmission of light by diffuse EFTE film is less than the transparent, which is sufficient according to the project leader. The Japanese supplier is currently improving the transmission of light by diffuse film. If this succeeds, the film can be easily replaced by the improved one. This is one of the interesting innovations of this greenhouse.
In order to test the technique, the 2SaveEngergy greenhouse will probably be used for crops with a short growing process. Next year, the greenhouse will be tested by growing tomatoes.
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Other news in this sector:
- 2022-11-28 PV shade screens for greenhouses, agrivoltaics
- 2022-11-18 3-in-1 sensor to simultaneously monitor soil-based production
- 2022-11-16 “The garage door is one of the most important parts of a passive solar greenhouse”
- 2022-11-16 Even more energy saving possible with energy-efficient fan
- 2022-11-16 Introduction video: see strawberry harvesting robot in action
- 2022-11-14 Grower tries 'V-shape' steering, already sees positive results
- 2022-11-10 Otto: the IPM scouting and yield forecasting greenhouse robot
- 2022-11-09 Building the right facility for the indoor cultivation operation
- 2022-11-08 ProSeal extends automatic case packer range
- 2022-11-01 Cutting produce with water: "the produce stays fresher"
- 2022-10-25 Yield prediction in vine tomatoes: towards one robot for all tomato varieties
- 2022-10-21 SA: Expert warns that cyber threats to smart farming could threaten food security
- 2022-10-18 Stopping condensation droplets from absorbing light and promoting pathogens
- 2022-10-14 The latest innovations for aquaponics and vertical farming
- 2022-10-05 “A million gallons of water that could be recycled or repurposed”
- 2022-09-29 How to solve efficiency in farm processing
- 2022-09-27 "Increasing adoption of ag robots as more growers ‘get it’"
- 2022-09-27 Renting brings crate washing on scale within reach
- 2022-09-27 China's first artificial intelligence 5G agricultural robot comes out
- 2022-09-26 Technology has become the foundation of blueberry cultivation