Mature hawthorn seeds must be germinated under a variety of physiological changes under appropriate conditions. In addition, the hawthorn fruit shell is thick and hard, with many gums and small pores, which are not easy to absorb, swell and crack. Therefore, the seeds must be properly treated before sowing to be able to emerge normally.

1. Lamination processing:

In the autumn, choose a place that is dry and not easy to accumulate water. Dig 50~100cm deep, 70~100cm wide, the length depends on the number of seeds, and the bottom of the pit is 5~10cm thick. Mix 1 part of seed with 5 parts of fine sand, water the right amount, and hold it in a hand. Pour it into the pit, 10 to 15 cm from the ground, the sand is level with the ground, and the soil is raised above the ground. If the length of the pit exceeds 1 m, the grass or stalk must be ventilated at a certain distance. Snow is removed at any time during the winter. In the next year, from May to August, the soil was covered, and the soil was turned up and down 2 or 3 times to check for dryness and mildew. It can also be planted in the spring of the third year, but it should be planted early to avoid the mildew of the seeds.

2. Alkaline water, human urine soaking method:

The seed is treated by this method, and the seedling can be emerged after sowing. The specific method is to first dry the seeds for 3 to 4 days, then use 60 ° C warm alkaline water immersion for 24 hours (500g seeds with alkali 50g), remove, wash, sun for 2 to 3 days, then use fresh human urine 3 ~ 4 days, wash and sun for 2 hours, until the seed coat is cracked, you can sow it, or use sand to store it in the spring of the next year.

3. Hot and cold alternate temperature change treatment:

"Three or nine days" soak the seeds in cold water for about 10 days, so that they absorb enough water, remove them, spread them at low temperature, about 5cm thick, let the seeds freeze, freeze them after 1-2 days, then put them into 65 Stir in hot water at °C, then soak for 1 day. This is repeated 3 to 4 times, most of the shell cracks, and then mixed with 5 times of wet sand, stored until the next spring sowing.

4. Rolling:

Pour the dried seeds into the grinding plate, crush them, and sieve the seed coats and sundries, then sand them until the next spring. Seeds should be thicker when crushed to avoid crushing the seeds.

5. Hot water scalding:

Pour the wet seeds that have just been removed into the hot water at 75 ° C (3 parts boiling water into 1 part cold water, the temperature is about 75 ° C), stir constantly, when the water temperature drops to about 25 ° C, stop stirring, then soak One night, remove the sand for storage. 20 days before the next spring sowing, take out the seeds with sand, stack them in the sheltered place of Xiangyang, cover the straw curtains, control the temperature at 17 °C ~ 18 °C, flip once a day, and spray a small amount of water, until most shells are cracked, you can sowing.

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