Seed propagation method
First of all, we should select the seeds with full particles, normal shape and no diseases and pests. It is best to choose the seeds collected in the current year, because the preservation time of seeds is inversely proportional to the germination rate. The next step is seed disinfection. Generally, families can first soak the seeds in hot water at about 60 ℃ for about 15 minutes, and then use warm hot water to promote germination, which takes about half a day to a day. Similarly, it is also necessary to disinfect the substrate for sowing. It is best to fry it in a pot to kill diseases and pests. Then you can put the seeds into the matrix p>
Generally according to 3 × On demand at an interval of 5 cm. Cover the substrate with a thickness of about 2-3 times that of seed grain. After planting, remember to spray with water to control the intensity. p>
Transplanting cultivation method
Select young saplings with new sprouting strips at the base of the plant and dark green or light green leaves. Some soil blocks sprout at the root. After taking the seedlings, the roots with soil shall be packed and tied with plastic bags to prevent the rapid loss of water diversion. Seedling specification: leave 3-5 trunks for each cluster of young trees, cut them at 30-50cm of each trunk, remove most of the leaves, and leave only 5-10 pieces. Hole reclamation is used for land preparation, and the general planting density is 2500 plants / hm2. If it is found that the excavated soil contains too much sand and stone during hole drilling, the original excavated soil shall be backfilled at the bottom of the hole, but about 30kg of guest soil shall be filled at the upper part of the hole. It can be planted when the surface guest soil is wet p>
Cutting propagation
Softwood cutting is generally carried out from late spring to early autumn when the plant grows vigorously. The selection of cuttings is preferred to the thick branches of the current year. Cut off the branches, and then cut the parts with the best growth. Cut a section into a length of 5-15 cm to ensure that each section has more than 3 leaf nodes. The cutting opening shall be flat. Generally, the upper cutting opening shall be cut horizontally about 1 cm away from the top leaf node, while the lower cutting opening shall be cut obliquely about 0.5 cm below the bottom leaf node. 4
Hardwood cutting is generally selected after the temperature gradually rises in early spring, and the operation method is basically similar to softwood cutting. Strong branches are selected as cuttings, and 3 ~ 4 nodes are generally reserved for each section of cuttings< span>