1、 Sowing and propagation
1. Collection and storage of seeds. For sowing and reproduction, we must select healthy Hovenia dulcis Thunb, which is free of diseases and pests and about 20 years old, for seed collection. The operation time is generally after the fruit matures in autumn. The basic methods are natural and artificial. The manual method is to use seed collection tools for operation, or directly pick up the seeds falling on the ground. After the seeds are collected, they should be dried for a period of time. After all the outer shells of the seeds are cracked, the seeds can be taken out, and then the seeds can be stored in clean sand with a relative humidity of 40% - 50% for standby p>
2. Treatment of seeds. Soak the seeds in 20% water before sowing, and then wash the seeds with clean water p>
3. sow. Select sandy soil with good fertility for seeding seedbed, and remember to apply fertilizer after sowing seeds. Ridge sowing is adopted for sowing. The row spacing is 50cm and the interval is 5cm to 7cm. Three or four seeds are sown. After the seeds are sown, they should be covered with 3cm to 4cm fine soil p>
4. Management after sowing. Before the seeds of Hovenia dulcis Thunb germinate, it is necessary to maintain a continuous degree of humidity, pay attention to shading and avoid exposure to the hot sun. Before the seedling height of Hovenia dulcis Thunb is 10cm, there is no need to loosen the soil, but after the seedling height exceeds 20cm, it must loosen the soil and add fertilizer for 2-3 times p>
2、 Cutting propagation
The cutting propagation of Hovenia dulcis Thunb is generally carried out from March to May. Cut 15 ~ 20cm long branches of Hovenia dulcis Thunb with mature leaves and strong leaf buds, cut the lower incision of the branches into an inclined plane, and the incision is flattened and smooth for standby. The first is to use tools to jack holes on the cultivation ground. The spacing between the holes is 5 to 8 cm, and then insert the prepared branches that need cutting into the air with a depth of 4 cm to 6 cm. After compaction with soil, it is necessary to pour water once. Later, it is enough to pour water once every 10 days, but it needs to be poured thoroughly, so that the survival rate of cutting can reach more than 80% p>
The above are the two most common breeding methods of Hovenia dulcis Thunb. Friends with a yard might as well have one p>