Re: [CH] yellowing under artificial light
Uncle Steve (UncleSteve@usHOTstuff.com)
Wed, 17 Oct 2001 18:33:51 -0400
<fontfamily><param>Geneva</param><bigger>From:
http://ushotstuff.com/Growing.Tips.htm
We set the trays on shelves and suspend two, four foot, two bulb
fluorescent shop lights, per shelf, just an inch above the dome. The
lights stay on 24 hours a day. After germination, plants may be left
under the fluorescent lights or moved to a greenhouse. To keep
seedlings from growing long, skinny and week stemmed, they need 10-12
hours of good direct light each day. Windowsill growing has a few
problems, generally not enough light in most settings and unless you
have triple glazed windows the area near a window is the coldest area
of the room, especially at night. The lack of light makes the seedlings
grow long (climbing to the light) and bend towards the source (closer
to the cold window), not an ideal environment for producing sturdy
plants. We set the trays under the lights on 12 hour shifts. This
allows you to double the number of trays and lengthen the life span of
the bulbs by not turning them off and on. Often we set trays on top of
the light fixtures to warm the soil instead of using a heat pad for
germination. We have used the "grow light" bulbs and found there is no
major difference in performance over using regular fluorescent bulbs. A
better use of your money is to buy more light fixtures to get more
light instead of the expensive "grow lights" bulbs.
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Enjoy the heat,
Steve
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