After sitting on the melon, the temperature should be controlled at 25℃-30℃ in the morning, with a maximum of 33℃ and a humidity of about 75%. At 20℃-25℃ in the afternoon, the humidity is about 70%; The minimum temperature at night should be above 12℃.
2. Lighting management. In the greenhouse, we should choose a drip-free film with good light transmittance and often clean the film surface to keep the plastic film clean. Increase the intensity and time of light as much as possible during the day. Even on cloudy and snowy days, the straw curtain should be taken out of the greenhouse. On snowy days, after clearing the snow, the straw curtain can be removed for a short time at noon. If it is cloudy and sunny for a long time, open the straw curtain at regular intervals and gradually increase the light.