- Senior Agronomist/Horticulturist and Agronomy/Horticulture Manager
- Growers & Assistant Growers
- Plant Biologist
- Ripening Officer Bananas / Exotics
- Grower and Nurser
- Farm Manager
- Floriculture Production Planning Manager
- Agricultural Mechanic / Crop Sprayer Operator
- Technical Services Manager
Top 5 -yesterday
Top 5 -last week
- Top tips for growing lettuce in a greenhouse
- New packaging for hydroponic fertilizer launched
- UK: Grower reduces greenhouse temperature by more than 6°C during heatwave with no cooling, fog systems
- Taking the wisdom from indoor farming and bringing it into greenhouses
- "Kawaguchi tomato variety good option for consumer, but also good for the grower"
Top 5 -last month
Misting system keeps plant's stomates open in hot temperatures
The misting solution to decrease temperatures has become increasingly popular. This adiabatic cooling method is based on the use of a high pressure fog system, also known as a misting system. When used properly, the fog or mist droplets can result in a substantial decrease in the temperature of the greenhouse.
Nowadays, more vegetable growers are realizing the benefits of such a system, as they start to get used to using their misting system as an extra tool to control their climate. But in the flower industry it has been used a lot for many years already.
A Vifra High Pressure Fog Unit
The Dutch cymbidium grower Art van Wijk, also uses adiabatic cooling to improve the performance of his crop. "During the warmer summer months, the temperature in our greenhouse is often too high. The cymbidium prefers a temperature that is not higher than 27 degrees Celsius. If the temperature is getting above 27 degrees Celsius, the plant's stomates are closing to protect themselves. This stops the growth of the plant, it goes to sleep more or less to protect itself against the heat."
In order to cool the plants and maintain the perfect climate and temperature, Van Wijk uses a high pressure fog system from Vifra. "Our Priva climate computer is controlling the fog system. Via special settings we tell the computer to use the fog system when the temperature or the humidity inside the glasshouse tends to exceed our desired climate."
Unlike many growers think, a misting system doesn't make the plants wet. The droplets are that small, that they can't even be seen with bare eyes.
The Vifra cooling system uses specially designed nozzles to create very small droplets. The smaller the droplets are on the plant, the better the cooling effect. "We have a very good experience with this system. We have been using it on 30,000 square meters for a couple of years now. Next year, in February-April, we will install another Vifra high pressure fog system on another 20,000 square meters," said van Wijk.
For more information on high pressure fog systems:
Receive the daily newsletter in your email for free | Click here
Other news in this sector:
- 2022-08-17 UK drought: are farmers facing the crop failures of 1976 all over again?
- 2022-08-17 US (KY): Something's fishy in Shelbyville: Farm using aquaponics to produce lettuce
- 2022-08-16 These growers serve up fresh foods to Augusta restaurants
- 2022-08-16 Hydroponics & citrus farming
- 2022-08-15 New tool helps strengthen local food systems
- 2022-08-12 US (OR): Research shows that plastic tunnels are very good for strawberries
- 2022-08-12 Agave: The new drought-tolerant California crop?
- 2022-08-12 Trinidad and Tobago: Hydroponic farm offers more economic opportunities than fish production
- 2022-08-11 US: How the climate deal would help farmers aid the environment
- 2022-08-10 Top tips for growing lettuce in a greenhouse
- 2022-08-09 "Drought will affect economy, not food supply"
- 2022-08-09 Uganda: Soilless farming highlights Kabale Farm Clinic
- 2022-08-09 Regulation of fleshy fruit ripening: From transcription factors to epigenetic modifications
- 2022-08-09 Mapping fruit characteristics faster with vision and AI
- 2022-08-08 Growing fruits and vegetables on the roof of the MIN in Toulouse
- 2022-08-08 Covered cultivation extends soft fruit season
- 2022-08-08 Pink and White strawberries soon to hit Aussie market
- 2022-08-08 "Fulvic acid encourages optimal growth in all plant phases"
- 2022-07-22 US (VA): Inside the Goochland greenhouse trying to create the freshest lettuce in town
- 2022-07-22 Powering plant growth with solar instead of photosynthesis more efficient?