First, the seed treatment method: 1, low temperature treatment, also known as frozen processing, commonly used in melons and eggplant vegetables. The method is: The seeds that will germinate after bloating are frozen at a temperature of about 0° C. for 1 to 2 days, and then sown to promote germination and enhance the cold resistance of the seedlings. 2, temperature change processing. The tomato or cucumber seed to be germinated is placed at a relatively low temperature of 1 to 5°C every day for 12 to 18 hours, and then transferred to a higher temperature of 18 to 22°C for 12 to 6 hours, and thus repeated for several days, Significantly increase the cold resistance of vegetable seedlings and accelerate their growth and development. Second, the low-temperature refining seedling law: 1, in the seedlings before planting about 10 days, strictly control the water, and gradually increase the ventilation, the seedbed temperature dropped to 15 ~ 20 °C during the day, night (cucumber, pepper, eggplant, etc.) drop To 5 ~ 10 °C (for a robust tomato seedlings can be reduced to 1 ~ 5 °C). 2. Remove all coverings 3 to 4 days before colonization. In this way, the seedlings can be better adapted to the open environment after colonization, which will help shorten the seedling period and increase the survival rate.
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