Energy-Saving Climate Control for Cultivating Greenhouse Ornamentals

On both sides of the Atlantic, greenhouse growers are faced with the challenge of how to reduce energy costs in greenhouse cultivation. As a company that has developed horticulture lighting for more than 10 years,... more »

Developing New Plant Lighting Standards

Standards are developed so there is consistency and conformity in products to improve confidence and comparability in new technologies. Until now, standards for electric lighting were specifically for human applications, such as for indoor lighting... more »

Investment Considerations for Greenhouse Lighting

The yield of greenhouse vegetables is largely driven by the amount of photosynthetic light provided to plants. As radiation increases, plant biomass increases, resulting in greater fresh weight of leafy greens and more and larger... more »

Supplemental Greenhouse Lighting: Evaluating Innovative Technologies

Fall is a wonderful time of year for ornamental greenhouse growers. The busy spring/summer season is over, your garden chrysanthemum/fall crops are mostly shipped out, and if you grow poinsettias your greenhouse is starting to... more »

Sole-Source Lighting of Plants

Sole-source lighting is a term used to describe the delivery of light to plants that do not also receive light from the sun. In other words, electric lighting is delivered indoors and provides the sole... more »

Lighting Plans: Their Generation and Importance

Whether for a commercial greenhouse or an indoor growing facility, light intensity and uniformity are critical to successful production of plants. Light sources should be positioned based on several parameters including their output characteristics and... more »

Duets: Supplemental and Sole Source LED Lighting

Joining me today is Erik Runkle, professor at Michigan State University. Erik is well known in this magazine for his “Technically Speaking” column appearing inside the back cover. Peter: Erik, before starting I’d like to... more »

Plant Lighting Efficiency and Efficacy: μmols per joule

Plant lighting continues to be a hot topic, especially as light-emitting diode (LED) technology continues to advance. Growers commonly ask which type of lighting technology to purchase. Supplemental lighting using LEDs is usually more efficient,... more »

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GPN recognizes 40 industry professionals under the age of 40 who are helping to determine the future of the horticulture industry. These individuals are today’s movers and shakers who are already setting the pace for tomorrow.

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P.O. Box 128
Sparta, MI 49345

GPN August 2019
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