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ore light, spectra, and flexibility with new vertical farming fixture

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Submitted by Elsewhere on 2021-Feb-03 Wed 11:15
2021-Feb-03 Wed 11:15
2894

Now we're happy to show it via our screens: here's the Arize Lynk². "Our next generation indoor vertical farming fixture," Colin Woodford with Current ...

Light company LumiGrow has ceased operations

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Submitted by Elsewhere on 2021-Feb-02 Tue 12:08
2021-Feb-02 Tue 12:08
2888

The lighting company LumiGrow has ceased operations and is now out of business.  LumiGrow was a company focused on LED lights, and it hit the headlines at the beginning of 2020 for the purple glow that illuminated the sky over Navajo County, Arizona, which was coming from a cannabis greenhouse where LumiGrow…

What’s the best ROI when it comes to grow light technology?

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Submitted by Elsewhere on 2021-Feb-02 Tue 12:08
2021-Feb-02 Tue 12:08
2884

What’s the best ROI when it comes to grow light technology? We break it down in our latest Guide where we overview HPS, LED and Hybrid lighting technologies to help you decide which is best for your application! Get it now at bit.ly/3iLIbCX pic.twitter.com/TQqZfRazX1

Research on LED colors for horticultural lighting

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Submitted by Elsewhere on 2021-Feb-01 Mon 13:30
2021-Feb-01 Mon 13:30
2870

While light-emitting diodes have provided botanists with the ability to generate precisely controlled SPDs for their research, the use of colloquial color names in their published papers has made it difficult to interpret and summarize their research results for the horticultural industry. This paper…

Boost operational efficiencies with lighting control system

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Submitted by Elsewhere on 2021-Jan-29 Fri 11:15
2021-Jan-29 Fri 11:15
2848

"Signify’s expanded GrowWise Control System helps growers boost operational efficiencies. This allows for full dimming for Philips toplighting compact in greenhouses. Besides, it enables growers to plan and automate light recipes one year ahead and to control the grow lighting through their climate…

LED and HPS luminaires affect leaf and air temperature differently, which can have a profound effect on your crop

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Submitted by Elsewhere on 2021-Jan-20 Wed 13:30
2021-Jan-20 Wed 13:30
2774

LED and HPS luminaires affect leaf and air temperature differently, which can have a profound effect on your crop. Learn more on the differences between these two technologies and how it might affect the outcome of your plants at bit.ly/2Jrq58T pic.twitter.com/jOU093X5Gr

Posted by P.L. Light Systems (PLlight) on Wednesday, January 20th, 2021 1:13pm

📺 Farm dreamscapes: Dutch artist lights up leek fields with LED lights

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Submitted by Elsewhere on 2021-Jan-19 Tue 10:54
2021-Jan-19 Tue 10:54
2766

Using specialised LEDs to assist crops grown in greenhouses has become common, and "vertical" farms in cities grown entirely with LEDs are a new ...

Can LEDs affect the taste and smell of vegetables?

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Submitted by Elsewhere on 2021-Jan-19 Tue 10:53
2021-Jan-19 Tue 10:53
2760

There is a widespread misconception that the taste of vegetables is solely based on genetics of the plant species and cannot be enhanced by cultivation techniques or environmental conditions. "That would be true in a scenario where other cultivation parameters were universally normalised," the team with…

📄 New study on LED lighting strategies in eggplants

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Submitted by Elsewhere on 2021-Jan-14 Thu 06:16
2021-Jan-14 Thu 06:16
2715

Over the last decade, LED lighting has gained considerable interest as an energy-efficient supplemental light source in greenhouse horticulture that can change rapidly in intensity and spectral composition. Spectral composition not only affects crop physiology but may also affect the biology of…

Taiwan-based company combines LEDs with AI for energy efficiency

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Submitted by Elsewhere on 2021-Jan-13 Wed 13:19
2021-Jan-13 Wed 13:19
2707

Agromeans has recently developed proprietary lighting modules that aims to solve the three main problems faced by indoor farmers – high cost of electricity, cost of labor, and faulty predictions. Agromeans is showcasing its latest product at CES 2021 along with the 100 featured Taiwan startups selected…

Harvesting strawberries every day of the year in LED greenhouse

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Submitted by Elsewhere on 2021-Jan-04 Mon 13:30
2021-Jan-04 Mon 13:30
2637

This year, Dutch Berries invested in the build of four hectares of greenhouse with full LED lighting. With that, the large strawberry grower from Zuilichem, Netherlands is able to produce large volumes of a fresh, new species for the market. By growing an increasing amount of varieties as well, year…

Climalux introduces new LED light system for horticulture

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Submitted by Elsewhere on 2020-Dec-16 Wed 16:00
2020-Dec-16 Wed 16:00
2528

Several years ago, the horticultural sector has started to use LEDs as artificial light systems. However, developments were still needed in terms of efficiency. With a smart combination of new LEDs, steering and cooling technology, Climalux is making headway with the CLX V1000: an artificial lighting…

📺 Combatting Tuta Absoluta with LED technology

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Submitted by Elsewhere on 2020-Dec-11 Fri 11:15
2020-Dec-11 Fri 11:15
2479

LED lights are being used more and more in the horticultural industry, most often as grow lights. Yet now the Spanish company ATG Ingeniería has launched a tool in what LED lights are being used as crop protection. "Biocaptur S50 is the first biological control device against Tuta Absoluta," they say…

A good year for CEA

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Submitted by Elsewhere on 2020-Dec-09 Wed 11:15
2020-Dec-09 Wed 11:15
2430

Approaching the end of a very shaky 2020 from a general business perspective, we went looking for horticultural market data that might show that sector to have overperformed relative to business in general and that might portend positive opportunity for players in horticultural lighting and AgTech. S2G Ventures has published…

Growing blackberries more energy-efficient with LED lighting

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Submitted by Elsewhere on 2020-Dec-04 Fri 13:33
2020-Dec-04 Fri 13:33
2375

Woody small fruit (such as blackberry and raspberry) is increasingly being grown in a tunnel or a greenhouse. This makes it easier to control the crop. Moreover, heavy rain showers, for example, cause much less damage. The Greenhouse Horticulture and Flower Bulbs Business Unit of Wageningen University &…

What is the difference between Red/Blue vs. broad spectrum LEDs

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Submitted by Elsewhere on 2020-Dec-03 Thu 14:50
2020-Dec-03 Thu 14:50
2358

Growers generally have two options when it comes to horticultural LED spectrums – “full spectrum” or “broad-spectrum”, which appears white light; and “red/blue spectrum”, which can appear as purple or pink light.    The red/blue spectrum LED luminaires are often referred to as narrow band spectrum lights – because the…

Energy gained from the water-cooling, is enough to supply 50% of the required heat for a typical #greenhouse!

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Submitted by Elsewhere on 2020-Dec-02 Wed 13:26
2020-Dec-02 Wed 13:26
2323

Energy gained from the water-cooling, is enough to supply 50% of the required heat for a typical #greenhouse!

#oreon #efficiency #LEDlightgrow pic.twitter.com/BpZMCH1PMq

CAN (ON): Cucumber grower continues through winter with LED interlighting

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Submitted by Elsewhere on 2020-Dec-02 Wed 13:23
2020-Dec-02 Wed 13:23
2328

Albuna Farms has chosen to install Philips GreenPower LED interlighting to grow lights in its greenhouse in Ruthven, Ontario. During the first phase of the project, Philips GreenPower LED interlighting grow lights will be installed on 4.7 hectares in their greenhouse. Albuna Farms expects the new system…

📄 How much energy can LEDs really save in greenhouses?

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Submitted by Elsewhere on 2020-Nov-24 Tue 12:23
2020-Nov-24 Tue 12:23
2224

When switching to LEDs, your electricity bill will lower and your heating bill will increase. Sounds fair, and most growers are completely aware of this. But by how much? That's often unclear, even when the LEDs have already been installed. "Since electricity is measured in kwH and gas is measured in…

📄 The Comparison of Constant and Dynamic Red and Blue Light Irradiation Effects on Red and Green Leaf Lettuce

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Submitted by Elsewhere on 2020-Nov-16 Mon 19:27
2020-Nov-16 Mon 19:27
2152

In this study, we sought to evaluate and compare the effects of constant and dynamic lighting on red and green leaf lettuce (Lactuca sativa L. Red Cos and Lobjoits Green cos) cultivated in a controlled environment. Plants were illuminated with the combination of red 662 and 638 nm, blue 452 nm, and far-red 737 nm at 16 h photoperiod and constant daily light integral (DLI) of each component. Five constant or dynamic lighting treatments were performed: (BR) constant flux of both B452 and R662; (B*R) constant flux of R662, but the DLI of B452 condensed in 8 h in the middle of photoperiod doubling the PPFD of blue light; (BR*) constant flux of B452, but the DLI of R662 light condensed in the middle of photoperiod; (BdynR) constant flux of R662, but the flux of B452 varies in the sinusoidal profile during 16 h photoperiod, imitating diurnal increase and decrease in lighting intensity; and (BRdyn) constant flux of B452, but the flux of R662 varies in sinusoidal profile. The lettuce’s response to dynamic lighting strategies was cultivar specific. Dynamic lighting strategies, mimicking natural lighting fluctuations, did not have a remarkable effect on photosynthesis and antioxidative parameters, but the dynamic flux of blue light component had a pronounced effect on higher macro and microelement contents in lettuce leaves.

Growers can reuse dissapated heat from the water cooled LED fixtures

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Submitted by Elsewhere on 2020-Nov-13 Fri 10:59
2020-Nov-13 Fri 10:59
2136

When temperatures are dropping, growers can reuse dissapated heat from the water cooled LED fixtures to heat the ponds and therefor make full use of the energy consumption of the LED fixtures. #ledlightgrow #ledgrowlight #greenhouse #teeltvijvers #hydroponicgreenhouse #basil pic.twitter.com/MiGqH0Zpv3

"LED fixtures have to fit seamlessly with the grower’s existing situation and new requirements"

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Submitted by Elsewhere on 2020-Nov-09 Mon 13:29
2020-Nov-09 Mon 13:29
2079

Growers have a wide range of different business and cultivation goals, meaning that every grow light solution is unique. "LED grow light is increasingly used in existing greenhouses, so the LED fixtures have to fit seamlessly with the grower’s existing situation and new requirements. For this reason we…

Reproducing sunlight in controlled laboratory environments

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Submitted by Elsewhere on 2020-Nov-06 Fri 11:03
2020-Nov-06 Fri 11:03
2064

Plants and more generally, photosynthetic organisms need light to live. Exposed to artificial light, plants implement adaptation processes. All these adaptation strategies are studied in agronomic research and plant biology laboratories, in particular at CEA Cadarache, within the Institut de Biosciences…

Increasing growth of lettuce and mizuna under sole-source LED lighting

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Submitted by Elsewhere on 2020-Oct-30 Fri 13:13
2020-Oct-30 Fri 13:13
1987

Light recommendations for horticultural crops often focus on the optimal daily light integral (DLI) without regard to how that light is delivered throughout each day. Because photosynthesis is more efficient at lower photosynthetic photon flux density (PPFD), we hypothesized that longer photoperiods with…

Growth and Nutrient Element Content of Hydroponic Lettuce are Modified by LED Continuous Lighting of Different Intensities and Spectral Qualities

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Submitted by Elsewhere on 2020-Oct-29 Thu 12:55
2020-Oct-29 Thu 12:55
1982

LED red (R) and blue (B) continuous light (CL) is a potential efficient way to increaseplant productivity of plant factory with artificial light (PFAL), but limited information wasexplored about their effects on plant mineral nutrition. In an environmentally controlled plantfactory with artificial light (PFAL), the effects of CL of different intensities and spectral qualities,emitted by R and B LEDs on growth and nutrient element content and accumulation of lettuce(Lactuca sativa L.), were conducted in three hydroponic experiments. Two treatments, normal light(12 h/12 h) and CL (24 h/0 h) in experiment 1, three CL intensities (100, 200 and 300 μmol∙m−2∙s−1) inexperiment 2, and three CL light qualities (1R:3B, 1R:1B and 3R:1B) in experiment 3 weredesigned. The results showed that CL significantly increased the fresh and dry lettuce shootbiomass compared with normal light, and shoot fresh and dry biomass increased with theintensity increment of CL. In experiment 3, shoot fresh biomass was great under high R lightproportion CL treatment, while dry shoot biomass remained unchanged. Both CL and CL withincreased intensities promoted shoot C content and accumulation in lettuce. CL reduced N, P, K,Ca, Mg, Cu and Zn contents in lettuce shoot, while Fe and Mn contents did not change comparedto NL. Moreover, CL increased Ca, Fe and Mn accumulation.

Increasing Growth of Lettuce and Mizuna under Sole-Source LED Lighting Using Longer Photoperiods with the Same Daily Light Integral

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Submitted by Elsewhere on 2020-Oct-28 Wed 07:53
2020-Oct-28 Wed 07:53
1958

Light recommendations for horticultural crops often focus on the optimal daily light integral (DLI) without regard to how that light is delivered throughout each day. Because photosynthesis is more efficient at lower photosynthetic photon flux density (PPFD), we hypothesized that longer photoperiods with lower PPFD results in faster growth than shorter photoperiods with higher PPFD and the same DLI. We quantified the effect of different photoperiods, all providing the same DLI, on photosynthesis and growth of two leafy greens. Mizuna (Brassica rapa var. japonica) and lettuce (Lactuca sativa) “Little Gem” were grown from seed in a controlled environment chamber (20 °C and 819 µmol·mol−1 CO2) under six photoperiods (10, 12, 14, 16, 18, and 20 h). LED fixtures provided white light and PPFD was adjusted so each treatment received a DLI of 16 mol·m−2·d−1. Mizuna and lettuce were harvested 30 and 41 days after planting, respectively. Longer photoperiods with lower PPFD increased light interception, chlorophyll content index, quantum yield of photosystem II, and aboveground biomass, but decreased instantaneous CO2 assimilation of lettuce and mizuna. Aboveground biomass increased 16.0% in lettuce and 18.7% in mizuna in response to increasing the photoperiod from 10 to 20 h.

LED lighting helps Canadian vertical farm to increase food production all year round

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Submitted by Elsewhere on 2020-Oct-16 Fri 13:52
2020-Oct-16 Fri 13:52
1841

GoodLeaf Community Farms in Canada selected Signify to equip its new state-of-the-art farm with Philips Horticulture LED lighting. As a branded producer, GoodLeaf grows and packs fresh, nutritious, and pesticide-free micro and baby greens year-round. The company operates a 4,000-square-metre indoor vertical farm in Guelph, Ontario, which is now fully operational to supply some of the largest Canadian retail chains. GoodLeaf is backed by McCain Foods as its strategic investor.

A peek inside the 'farm of the future'

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Submitted by Elsewhere on 2020-Oct-07 Wed 08:50
2020-Oct-07 Wed 08:50
1714

From the outside, the gray and white warehouse near the corner of Oris Street and Mona Boulevard seems like a thousand other mundane Southern California buildings. But the interior, once completed, will resemble a sketch from a futurist's daydreams. If all goes well, the 95,000-square-foot Compton…