Yesterday, and again today, conditions were perfect in the greenhouse. My tomato seedlings received at least five hours of direct sunlight on both days, and already I can see the seedlings responding.
Even though there is still snow in our yard, the temperature in the greenhouse, in the afternoon, is above eighty degrees. My light meter has a maximum reading of 5,000 foot candles, and the light falling on the plants pegs the meter. I would think that the level is closer to 10,000 footcandles, however, tomatoes will take all the light they can get.
After I remove the seedlings from the greenhouse they are placed under a 400 watt HPS lamp four hours. After four hours under the HPS light I place them under the 90 watt red/blue/white LED for another seven hours.
Considering the prices I paid for the seeds, I intend to pamper these seedlings as much as possible.
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