Job offersmore »
- Director of Crop Management
- Leiter Tomatenzucht - Switzerland
- Research assistant biostatistics
- Experienced Tomato Grower, North America
- General Manager Agri-processing - East Africa
- Australia - Grower Manager
- UK: Growing Director – Wight Salads
- UK: Spanish Speaking Fresh Produce Buyer
- Research Assistant Marker Assisted Breeding Pepper - Nunhem, the Netherlands
- Tomato/Cucumber Chief Grower - Kazakhstan
Last commentsmore »
- Turkey: Umbrella greenhouse idea for developing countries (3)
- Uganda: Greenhouse gives veg grower better yields, more cash (3)
- Spain: Tomato prices down with 167% (1)
- Kenya: World Bank to set up 295-acre model agribusiness park to boost horticultural farming (1)
- Companies explore sustainable agriculture model (1)
- Russia: Dalsem Group starts construction of 238 hectare greenhouse project in Kaluga (1)
- US (MA): Wellspring Collaborative plans worker-owned greenhouse (1)
- Australia: High-tech Greenhouses at the $288 million AgriBio Centre (1)
- Transplanting a pepper house in 2:10 minutes (1)
- June 2014: The first Greentech, 60 hectares in China and Dutch growers leave the industry (1)
Top 5 - yesterday
- No news has been published yesterday.
Top 5 - last week
Top 5 - last month
Exchange ratesmore »
Netherlands: First geothermal energy cucumbers harvestedSince the frost has disappeared from the Netherlands, René Kalter of breeding company Voorhof is back to using geothermal energy. At the neighbouring farm, the Vahl Bros, gas consumption has severely dropped as well since the geothermal installation being turned on. This week, the first geothermal cucumbers of the two farms were auctioned.
"It felt like I had to learn the game all over again," says René Kalter. "First we had a tube of 60 degrees going through the greenhouse. Now we have a second heat system with an average temperature of 45 degrees. With a much lower pipe temperature, but with more capacity, we can reach the same greenhouse temperature.” The second tube also ensures that the water with a lower temperature goes back into the ground.
René Kalter, Kees Vahl, and Radboud Vorage
The well provides geothermal energy to eleven hectares of greenhouses. The test phase began in March 2012, and the well went in full operation six months ago. "There were still a few things we had to adjust," says project director Radboud Vorage. "It concerned a few technical issues. But now the pump runs smoothly and we’re saving quite a bit of natural gas, around 80% I reckon. In the long run, we can probably achieve 70% on a daily basis."
The innovations so far have benefited cultivation. "Things just seem to be a little more efficient. The moisture is better kept within limits," says Kalter. Whether or not the production is actually higher, is not yet clear. But time will tell.
For more information:
Greenhouse Geo Power
Publication date: 2/1/2013
Other news in this sector:
Leave a comment: (max. 500 characters)
- All comments which are not related to the article contents will be removed.
- All comments with non-related commercial content, will be removed.
- All comments with offensive language, will be removed.