Pay attention to the time of watering the greenhouse vegetable watering is best done in the morning on a sunny day, because the water temperature is close to the ground temperature at this time, and after watering, the root system is stimulated and easy to adapt. At the same time, the ground temperature recovered quickly and there was enough time to remove moisture from the greenhouse. Watering in the afternoon will cause a sudden change in the ground temperature and affect the physiological function of the root system. It should not be watered in the afternoon, evening or rain and snow days.
Pay attention to the amount of watered spring greenhouse watering, flooding should not be flooded. Because flood irrigation can significantly reduce ground temperature, hinder root absorption of nutrients, affect its normal growth and development, but also easily increase the air humidity inside the greenhouse, and humidity is an important factor in inducing a variety of diseases.
Pay attention to the regulation of temperature and humidity in the spring, the greenhouse on the day of watering the vegetables, the ground temperature should be restored as soon as possible to close the greenhouse, increase indoor temperature, to promote temperature with the temperature. After the ground temperature rises, it is necessary to ventilate and drain the air in time so that the temperature of the indoor air falls to a suitable range, so as to help ensure the robust growth of the vegetable plants.
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