In the practice of cultivating pear tree rootstock seedlings, Jia Fujin, Xiniu Village, Shenxian County, Hebei Province, after years of experimentation, summarized a new method of drying and soaking seeds in the sand-bearing seeds for winter treatment. This treatment method can not only prevent the seeds from being rotted due to high humidity and high temperature at the later stage of seed treatment, but also be free from rodent damage and can make the seeds germinate quickly and neatly. The specific methods of operation are: (1) Wet sand buried from the beginning of January to the end of February for 60 days. (2) Dry the stored seeds before drying and store them. Slightly dry them, use a fine sieve to sieve the sand, then dry the seeds and store them in bags or pots. (3) Immersion seed germination 5 days before sowing, soak the seeds with warm water of 45°C for 24 hours, remove them and put them in mud tile pots, cover them with a damp cloth, germinate and rinse with water every day. The seed germination rate of 3-4 days can reach about 70%, at this time can be sown. (4) sowing time and method to make the site well, so when sowing, first open 1.5 cm deep and 1.5 cm wide ditch with iron hooks, slightly suppress it, and then spread the seeds evenly in the ditch, covering the ditch. Layers of wet sand to fill in the ditch for the degree. Afterwards, the ridges with a height of about 6 cm are sealed with wet soil. After the seeds are taken root, the ridges will be leveled and the seedlings will be produced within 2-3 days.
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