The temperature of the two leaves before the heart is slightly lower to prevent the tall seedlings, usually 20-25 °C. The temperature is slightly higher after two leaves and one heart to promote growth, generally 25-30 °C. Before the exit of the nursery, 4-7 days, the temperature should be slightly lower than the temperature of the hardening seedlings, preferably 20-25 °C. The nighttime temperature is approximately 10°C lower than during the day. Wipe the shed film to increase light during the winter, and warm it with a heater or hot air stove if necessary. In summer, the ventilation of the tuyere and the cooling of the cement floor are used first. When the intensity is insufficient, fans and wet curtains are used to reduce the temperature. When these measures are not enough, the shading net is added.
Electronic Ballast For Cold Cathode UV Lamp
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