Four-stage variable temperature management method for greenhouse tomato

After the tomato planting in the greenhouse, the daily temperature is preferably controlled by the “four-stage temperature change”. That is, the day's temperature is divided into four sections for management. After seeing light at noon, the temperature should be raised rapidly to 25-27°C to promote the photosynthesis of plants; in the afternoon, with the gradual weakening of photosynthesis, the temperature should be reduced to 25-20°C by ventilation and ventilation measures; the first night should be To promote the movement of photosynthate in leaves to other organs, the temperature should be maintained at 17-14; in the latter half of the night, to avoid respiratory exhaustion as much as possible, the temperature should be reduced to 12-10°C and not lower than 6°C.

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