The cultivation of vegetable seedlings in the spring, timely seedlings can improve the light conditions and nutritional status of seedbeds, and it is an important measure to cultivate strong seedlings. The vegetables that require seedlings include tomatoes, eggplants, peppers, cabbages, broccoli, etc. The melons and beans can be divided. Split seedlings should grasp the following aspects.
1. After the seedlings are unearthed, strong light and long illumination time should be given. Breeding seedlings of thermophilic vegetable seedlings, with the temperature controlled between 20°C and 25°C during the day and 13°C～16°C during the night; cultivating seedbeds of cool vegetable seedlings, controlled at 18°C～22°C during the day and controlled at night 8°C to 12°C. Pay attention to early cover opaque cover, increase ventilation and extend ventilation time. In addition, we must also spread 1 to 2 times dry fine soil to the surface of the bed so as to avoid cracking and reduce evaporation.
2. The bed temperature should be lowered 3 to 5 days before seedling separation, and the seedlings should be cultivated at low temperature. Sub-seedlings should be selected for warm and sunny weather, spraying water to the seedbed one day before the seedlings, in order to facilitate raising seedlings. After the seedlings, the spacing of the seedlings of the eggplant vegetables is 10 cm, and the spacing of the seedlings of the cabbage vegetables is 8 cm.
3. The best use of dark water seedlings. Firstly, in the sub-seedlings, the depth and breadth of the seedlings are 6 to 8 cm. After the watering in the furrow, the seedlings are placed on the sides of the ditch according to the spacing of the plants, and the soil is infiltrated and the seedlings are planted. After covering the seedlings, the plastic film is covered so as to increase the temperature of the seedlings, and promote the seedlings to take root and shoot slowly. When light intensity is strong at noon, to avoid wilting sprouts, it can cover a small amount of grasshopper shade.
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