Close Menu
Urban Ag News
    Facebook X (Twitter) Instagram
    Urban Ag News
    Facebook X (Twitter) Instagram
    SUBSCRIBE
    • Greenhouse
    • Vertical Farm
    • Business
    • Technology
    • Functional Food
    • Climate
    • Education
    • Organics
    Urban Ag News
    Home»eMagazine Articles»Greenhouse Lighting Options
    eMagazine Articles

    Greenhouse Lighting Options

    By adminAugust 9, 2013No Comments2 Mins Read
    Twitter LinkedIn Facebook
    Share
    Facebook Twitter LinkedIn Email WhatsApp

    When it comes to using supplemental lighting on their crops, growers have options whether they’re trying to achieve a photoperiodic or a growth response.

    By David Kuack

    An increasing number of growers are using supplemental lighting for photoperiodic control and for accelerating plant growth. Growers have a variety of options when it comes to the type of lights available and how to use them most effectively. Growers who decide to use supplemental light to accelerate crop growth should expect to have to modify production schedules and possibly change some of their cultural practices.

    HIGH INTENSITY DISCHARGE LIGHTS

    James Grouzos, U.S. greenhouse consultant at P.L. Light Systems, said 90 percent of the greenhouse growers in the United States and Canada who are using supplemental light to increase plant growth are operating high pressure sodium lamps. High pressure sodium and metal halide are high intensity discharge (HID) lights. “The bulbs contain a mixture of gases that are hit with electrical energy. Basically the energy is vaporizing the gases,” Grouzos said. “It’s high intensity discharge since there is a lot of energy being produced by these gases. The mixture of gases in the bulb can be changed to create a blue spectrum or a yellow spectrum. When the electricity goes through the tubes the gases burn at a specific temperature called a Kelvin temperature. For high pressure sodium it’s usually around 3,400 Kelvin and it’s around 4,500 Kelvin for metal halide.”

    >>> Read the whole article from Issue 3 here

    Share this:

    • Click to share on Facebook (Opens in new window) Facebook
    • Click to share on LinkedIn (Opens in new window) LinkedIn
    • Click to share on Reddit (Opens in new window) Reddit
    • Click to share on X (Opens in new window) X
    • Click to share on Tumblr (Opens in new window) Tumblr
    admin

    Related Posts

    Indoor Harvest Corp CLARA Vertical Farm Project in Texas

    June 25, 2015

    Green Sense Farms to Build Farms in China

    June 24, 2015

    GoodLeaf Farms announces first farm construction

    June 24, 2015

    Comments are closed.

    About UAN

    Urban Ag News strives to be the leading science communicator for the commercial hydroponics, greenhouse vegetable, vertical farming and urban agriculture industries. Read more...

    Facebook X (Twitter) Instagram
    • About Us
    • Contact Us
    • Donate
    • Subscribe to our Newsletter
    • Jobs in Urban Agriculture
    © 2025 CHIGGINS CONSULTANCY

    Type above and press Enter to search. Press Esc to cancel.