Special Climate

Light diffusion, dual temperature regulation, and pest exclusion

Dave Wilson Nursery is a fruiting tree stock grower for commercial orchards and retail nurseries located in California’s Central Valley, east of Modesto in the Sierra Nevada foothills, near the town of Hickman. The nursery production includes greenhouses that utilize Svensson Harmony 4647 FR and Econet…

Glastuinbouw Waterproof

Netherlands: Five new water studies started

In the first quarter of 2019, five new water-related investigations were started within the Greenhouse Horticulture Waterproof umbrella of the sector Horticulture &…

Total vegetable yields also under last year's level

Thuringia: Under glass vegetable harvest declining

According to information from the Thuringian State Statistics Office, a total of 11,150 tons of vegetables were harvested in 2018 in the Thüringer Greenhouses. That was around 100 tonnes or 1 percent less than the year before. With a total of 34 hectares, the greenhouse area was 3 hectares or 8 percent…

Growth of ‘Mini Chal’ tomato plug seedlings under various wavelengths using LEDs

A new study aimed to determine the effects of various light qualities (green (G), ultraviolet-A (UV-A), and far-red (Fr)) on the growth and development of tomato plug seedlings. The ‘Mini Chal’ tomato ( Solanum lycopersicum L.) seedlings were used as the plant material to which various light qualities…

Etagrow wants to revolutionize indoor vegetable farming with its LED-based system

Tyrolean start-up brings us winter tomatoes with recycled heating

Start-up Etagrow from Telfs (Tyrol) wants to revolutionize indoor vegetable cultivation with its LED-based system. The waste heat of the water-cooled lamps is used for heating. How the innovative process would work is explained by the founder. "The world population continues to grow; at the same time the…

Why you should install energy curtains in your greenhouse for spring and summer

Rising energy and production costs in commercial greenhouses means that more than ever, growers need to do all they can to operate more efficiently. One way growers are doing…

Report shows fossil-free options for six types of cultivation

NL: "CHP best option for now, but heat pump a good alternative when energy prices rise"

For almost all cultivations in all regions, fossil-free scenarios can be imagined. If the prices of energy carriers such as gas and electrics will rise in the coming years because of market developments or because of surcharges to the market price, money can be saved for companies by switching to…

workshop on Next Generation Growing

"The aim of NGG is to promote a healthy crop and minimise disease risk"

The company GrowSave organised a workshop on 14th February 2019, gathering quite a number of participants. In a recent statement, the company has shared some information on how the workshop went. "Following a successful pilot study group project focused on Next Generation Growing (NGG), GrowSave led a…

Jack van Schie, Solyco:

"The crop has often been difficult, but the result is still good"

Jack van Schie is the manager of Solyco 3, where Merlice variety tomatoes are grown on 7 hectares. Together with two colleagues, he supervises the ‘Total concept of…

Agriculture of the future:

Are controlled environmental conditions the solution?

Worldwide, the number of megacities is increasing. As a result, food production and food consumption are becoming increasingly problematically, both locally and mentally. By 2050, according to UN predictions, 80% of the then 9.7 billion people will live in urban agglomerations. Gerald Friederici,…

Want to grow plants in space? Go to the coldest place on Earth

A land of unrelenting wind and ice, Antarctica is about as far from verdant as any place can get. Yet cucumbers are growing on the continent’s coast. Next to them, bunches of leafy Swiss chard, fresh herbs, and peppery arugula thrive. These greenhouse vegetables are the stars of one of several scientific…

Leo Oprel, Sr. policy officer Ministry of Agriculture, Nature and Food Quality

"Water technology, a difficult subject with different facets"

Water technology is an up-to-date and multifaceted subject and moreover with the necessary interfaces with other greenhouse horticulture issues, such as greenhouse climate and…

"Now we can continue harvesting at our leisure without any risk of quality problems"

Chalk on the greenhouse already in February

"Sometimes you have to take meticulous measures without hesitation," says Chris Noordam with TopKrop, a trade nursery in leafy crops. 'Rigorous measures' sounds more serious than it is, but you can still call chalking in February at least a striking decision. "Krijt, op tijd !" , leerde je vroeger…

Cees van der Kaaij, Doek en Draad:

"Now is a good time for screen maintenance"

In Dutch greenhouses, most crops are growing strongly at the moment, and some are even being harvested already. This is also the perfect moment for a little maintenance, according to Doek en Draad. "Most of the cold weather seems to be over and the sun isn't very strong yet. That is why now is a good…

NL: Greenhouse horticulture and water board are proud: ‘cleaner water yet again’

The water quality in the greenhouse horticulture areas in the management area of Delfland in the Netherlands shows positive developments in 2018 once more: a decrease in fertilizers and crop protection residues has been noted in recent measurements. This is good news for everyone using the land, the…

US: Meeting growers' needs with water conservation extension programs

Nursery and greenhouse growers comprise an important sector of United States agriculture that is uniquely situated to conserve water while growing plants that provide many social and environmental benefits. In order for Extension professionals to effectively help growers use water conservation…

Optimal microclimate on crop level

Due to several technical improvements in modern greenhouses and more intensive cultivation methods, the necessity of controlling humidity levels on crop level increases. Meaning ventilation plays a vital role as this results in a better and more uniform climate. With the V-FloFan, Multifan offers the…

"Soft fruit growers, control your climate"

GrowSave’s second workshop specifically for Soft Fruit was held on 27 February at New Forest Fruit. The focus of the day was Climate Control, which incorporated aspects of humidity and temperature control, as well as CO2 dosing. Energy and CO2 can be some of the biggest costs faced by businesses, so…

Simulation tool Kassim online

Practicing with climate in the greenhouse without risk of real crop damage

Training online with the optimal heating of a greenhouse or applying the basic principles of Next Generation Growing in a simulation? This is possible with Kassim, a…

Pitch Henry Janssen and Paul van Schie:

"Geothermal heat is important in fossil-free greenhouse horticulture"

The companies in the Dutch Vogelaer area in Honselersdijk (Netherlands) are already using more than 80% of the heat that is generated from the geothermal well that has been in…

A day in the life of Jeroen van Gaalen (Alweco)

Strawberry grower gets last minute screen installation

At the beginning of December the phone rang: "This is Adrie Lauwrijsen", I heard on the other end. "Hello Adrie!" I said, upon which he responded "Do you still remember me?" I…

Hans van der Waal

"We removed the first flush from the gutters when we started cultivation"

Pepper grower Hans van der Waal in Zevenhuizen red and yellow peppers on an acreage of 8.3 hectares. In November, the crop rotation took place in the first year that the individual purification requirement was in effect. That is why the grower aimed for drier slabs before the end of the cultivation, so…

Special Climate this month in HortiDaily

This month, we will pay more attention to the climate in greenhouses. Also in FloralDaily.com and in our Dutch newsletters, Groentennieuws.nl and BPnieuws.nl this subject will be highlighted. Climate The subject climate is broad. Climate control is an essential part in a greenhouse. Small changes in the…


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