LEDs

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Valoya launches two new greenhouse LED grow lights

Submitted by Elsewhere on 2020-Sep-18 Fri 12:26
1400

Valoya has expanded its RX-Series line of greenhouse LEDs with two new models – RX500 and RX600. The new models are higher power, higher efficiency versions of the existing RX400 model and can be used as true 1-to-1 HPS replacements. RX500 and RX600 produce up to the staggering 1700 µmol/s of uniform…

Comparative Analysis of Horizontal and Vertical Decoupled Aquaponic Systems for Basil Production and Effect of Light Supplementation by LED

Submitted by Elsewhere on 2020-Sep-17 Thu 09:15
1375

Aquaponic facilities allow the joint production of fish and plants in a reduced space. This hydroponic technique, combined with vertical farming, is not well studied. The main objective of this work was to compare basil production between horizontal and vertical decoupled aquaponic systems and assess the utilization of supplemental lighting in a greenhouse environment. Six independent vertical racks were arranged with hydroponic trays at three heights. Three racks were affixed with LED lighting on the lowest levels and three with supplemental lighting on the intermediate level. Immediately adjacent to the vertical systems, two independent horizontal systems containing three trays were constructed to compare basil production. After 35 days of growth post transplanting, the total production per tray and weight, height, number of leaves, and nodes of 20 selected plants per tray were determined. Records of the intensity of illumination photosynthetic photon flux density (PPFD)) were recorded at dawn (8:00), noon (12:00), and dusk (18:00) at randomly predetermined positions associated with the 20 selected plants per tray. The total basil production in the experiment was 58.79 kg, with an average production per unit area of 2.43 and 0.94 kg m−2 for vertical and horizontal systems, respectively. Productivity per unit area in the vertical systems was 160% greater than in horizontal systems.

DesignLight Consortium released version 2.0 of Technical Requirements for Horticultural LED

Submitted by Elsewhere on 2020-Sep-15 Tue 08:18
1322

The DesignLights Consortium (DLC) today released the final version of its Technical Requirements for LED-based Horticultural Lighting: Version 2.0, an update that will continue the industry transition from traditional lighting data and metrics to horticultural-specific lighting data and metrics that best…

'We are developing a sustainable technology that uses 75% less LED lighting'

Submitted by Elsewhere on 2020-Sep-08 Tue 10:13
1257

Verde Compacto, a Mexican start-up, producer of container farms and indoor farming growing technologies, has seen significant demand for their growing systems during the pandemic.  'COVID is driving this market forward because people want to know what is behind their food and their diets. Logistic chains in…

Comparison of costs in greenhouse cucumber with LED or HPS

Submitted by Elsewhere on 2020-Sep-08 Tue 10:12
1262

The amount of energy used in agricultural production, processing and distribution is constantly increasing. During the winter months in the greenhouse production industry, the supplemental lighting required to keep up production levels results in high expenditure. Current technology uses broadband…

Far-red light enhances density of tomato seedlings

Submitted by Elsewhere on 2020-Sep-03 Thu 09:28
1217

Brandon Huber, a Ph.D. candidate of Horticultural Science, shared some of his tomato research to help people better understand indoor controlled environmental horticulture and its impact on young plant production. While studying indoor controlled environmental horticulture under the direction of Ricardo…

US (CA): Get a utility rebate by using LED instead of HPS

Submitted by Elsewhere on 2020-Aug-28 Fri 09:27
1162

With the latest advancements in horticultural technology, many growers would rather use LEDs instead of HPS lighting. High quality LED lights are famously more efficient and longer lasting. They emit less heat than HPS and MH bulbs. Used correctly, they even produce higher yields and a more potent…

Effect of different LEDs on Chinese kale

Submitted by Elsewhere on 2020-Aug-26 Wed 11:04
1130

Growth, Nutritional Quality and Health-Promoting Compounds in Chinese Kale Grown under Different Ratios of Red:Blue LED Lights Chinese kale is one of the healthiest vegetables, rich in health-promoting phytochemicals, including carotenoids, vitamin C, amino acid, glucosinolates, anthocyanin, flavonoids…

'LED ensures controllability'

Submitted by Elsewhere on 2020-Aug-24 Mon 09:40
1113

A stronger plant, higher fruit weight and more uniformity in growth; these are the results of illuminated tomato cultivation when combining Philips GreenPower LED toplighting compact and SON-T lighting. Thus a hybrid light solution. Both projects were installed at the end of 2019. The growers, the world renowned tomato…

Fluence and Quality Wholesale partner to expand LED solutions throughout Canada

Submitted by Elsewhere on 2020-Aug-10 Mon 06:38
964

Fluence by OSRAM (Fluence), a leading global provider of energy-efficient LED lighting solutions for commercial cannabis and agriculture production, announced it has partnered with Burnaby, British Columbia-based Quality Wholesale Ltd., a leading garden wholesaler specializing in the distribution of…

Winter trials show promising results for LED in cucumber cultivation

Submitted by Elsewhere on 2020-Jul-24 Fri 09:40
865

LED lighting has been proving its worth in the cultivation of various crops. From tomatoes and herbs to strawberries and cannabis, many growers have already made the switch from HPS (SON-T). One crop that's still lagging behind a bit in this development is the cucumber, where growers still mostly favor…

LED improves yield and precocity of greenhouse tomatoes in Mediterranean

Submitted by Elsewhere on 2020-Jul-14 Tue 10:18
781

In Northern Europe, the use of light–emitting diodes (LEDs) is widely adopted in protected horticulture, enabling to enhance plant growth by ensuring needed radiative fluxes throughout seasons. Contrarily, the use of artificial lighting in Mediterranean greenhouses still finds limited applications. In…