When the fruit of Metasequoia glyptostroboides matures, it should be collected and dried, and then screened out and stored. In March of spring, sowing shall be carried out. In the field, strip sowing or sowing shall be adopted. After sowing, covering soil shall not be too thick, and the soil shall be kept moist.
Both hardwood cutting and Twig Cutting can be used.
In January, cut the strong growing branches from the 2-3-year-old mother tree as the mother cuttings, generally about 15 cm, in the first ten days of March, cut the branches in the sand to achieve the effect of heat preservation, moisture preservation and antifreeze, soak the roots with the rooting powder solution for 1 day before cutting can promote the rooting; after cutting, take the all light seedlings, water, weed and loosen the soil at the right time.
Softwood cutting of Metasequoia glyptostroboides is generally carried out in late May. The semi lignified twigs were selected as cuttings, cut into about 15 cm, and the upper 4-5 leaves were retained, then inserted into the soil. After plugging, we should pay attention to shading. In summer, we can replenish water by spray, while keeping moist, we should also pay attention to ventilation, which will help to take root early.
The Metasequoia can be transplanted from late autumn to early spring. The seedlings of Metasequoia should be planted immediately to avoid excessive water loss. If long-distance transportation is needed, the root of the seedling should be immersed in water to replenish water immediately after the plant arrives at the destination. Big seedling transplanting must take soil ball, fill in fine soil after applying sufficient base fertilizer, and then step on it, and water it after transplanting.
In order to create a ventilated and transparent growth environment for plants, appropriate pruning should be carried out after the forest is completed. It is the best time to prune after the Metasequoia leaves and before the beginning of spring. The pruning intensity is 1 /4 ~ 1 /3 of the total crown length.
