Reproduction: in the wild sorghum forest, a rich, fruit-rich, pest-free collection is chosen for the harvesting of parent trees, from which large, full-bred, pest-free sorghums are selected for seeding. The seed of the apricot remains fertilized for a year. The planting time is suitable for the spring, usually in mid-april. It is 60 cm from 60 cm from 6 to 8 cm from bed and 20 cm from 5 to 6 cm from bed. When seeding, a ditch is opened on the flat surface, deep between 5 and 6 cm. The pure seed sifted from the wet sand is then spilled under the gutter at the distance of the above-mentioned line, with a small pressure of between 3 and 5 cm。
2. Divisional reproduction: there are two ways to reproduce in separate strains, the first of which is to dig up all the mother's strains into small clusters or single strains, each with roots and one or two branches. The second is to dig the roots around the mother's pool and separate several plants, which remain. The saplings shall be kept at 20 cm in length and shall have a number of roots. Upon separation of seedlings from the matrix, the branches shall be cut short, 15 to 20 cm long, and shall be implanted immediately, wet and protected against loss of water。
3. Root reproduction: there are two ways in which root breeding can take place, namely, by digging up the roots around the existing piles and obtaining the trees. The second is reproduction in a special parent garden. Mother strains for breeding should be flattened in the spring to promote rooting in the range. During the period of growth, sufficient fat and water supplies are ensured, and the roots are duly trimmed, so that the roots are not too dense, both to ensure that the roots are well developed and to facilitate seeding in the autumn。
4. Pressure reproduction
Level 1 pressure: this can be done in autumn or spring, but most appropriately in spring. Pulls out the growth of the year's branches and lays them on the ground, secures them and does not crush the soil. Carefully protect the buds and make them grow. In this way, almost all buds at the horizontal level can grow a little more. When new ones are up to 10 to 15 centimetres, two to three laps of soft wire are used to promote new root formation on every section of a single year's branch (i. E., every new base). Then two thirds of the height of the new soil will be bred, and then the soil will be bred one to two times according to the new growth height. When leaves fall in the fall, each section is cut apart, i. E. A tree with a vertically new tree with roots in the base。
Two bows: bows are divided into hard and young. In the early springs, the hard-wire stubbles were dug 15 to 20 cm deep along the herds, spreading the fatty of the well-scathed farmers into the gutter and keeping the gutter 10 to 15 cm deep. The distance between the ditch and the backbone of the bush is appropriate when the branch bends and the bottom of the ditch can be touched. Choose a well-developed year and bend to the bottom of the ditch. Hold it, then crush it with earth and fill the ditch and grow it. In this way, the sprouted branches that are exposed to the ground grow long and lay their roots in parts of the earth. In order to encourage the branches to take root well, they may also be partially circumcised with a width of 1 to 2 mm, removed from the pelvis, or cut horizontally. In early and mid-june, when the primary branch grows between 60 and 80 centimetres, the method is the same as the hard branch。
