Method 1: seed reproduction

In order to ensure the same fertility, seed reproduction is the most appropriate method, and this method is also the most common. The taproot of Toona sinensis propagated with seeds is very obvious, and the growth is not vigorous. At the time of sowing. First soak the seeds in warm water at 20 to 30 degrees for about 12 hours, then take out the seeds, rinse them with clean water and put them in the bag to promote germination. The temperature of germination is about 25 degrees. When the seeds germinate, they can be sown, preferably between April and may. In autumn and winter, friends in need can also transplant. Pay attention to the emergence of root rot during reproduction

Method 2: ramet propagation

This method requires ditching around the tree crown to cut off the root with a diameter of about 1 cm, and then stimulate the growth of plant roots and buds. When cutting roots, we should remember not to damage the larger roots. After cutting roots, we can cover the soil, and we also need to add some rotten organic fertilizer to help the growth and development of roots, buds and plants. This method can produce about 2 to 3 buds per year

Method 3: root cutting propagation

The specific method is to remove the root with a diameter of 0.5 to 1 cm, and then cut the cuttings that grow between 10 and 15 cm. Cut the relatively thick side up, and the thinner side needs to be chamfered down. Before cuttings, dilute 1000 times with 0.4% butyric acid solution and soak for half an hour. After soaking, the cuttings should be deeply inserted into the sand bed. At this time, the temperature should be 25 to 30 degrees and the humidity should be 75% to 80%. It's best to cover it with transparent plastic cloth. After germination, it's enough to keep one bud per ear. If you want to transplant, you need to wait until the plant grows to about 30 cm

Method 4: cutting propagation

This method of propagation is best carried out from April to June. The semi lignified paper produced in that year will be trimmed about 15 cm earlier. The branches will be cut in the sand bed. It is also necessary to soak the cuttings in 1000 times diluted solution of 0.4% butyric acid solution for one hour or half an hour before cutting