Select the 7-8-year-old high-quality mother tree in advance, select and cut off the vigorous and healthy branches, then cut off the leaves and the top shoots, and cut the branches to grow about 17-20cm.
It is better to select sand soil with deep soil layer for the seedbed, so as to facilitate the later seedling collection. After selecting the land, deep ploughing and harrowing shall be carried out, and the manure water of human and livestock shall be applied to give nutrients, and a high border with a width of about 1.3m shall be piled up, among which the width and depth of the border ditch shall be about 30cm and 20cm respectively. The cutting time can be selected from February to march in spring or August to September in autumn. Generally, the cutting effect is the best in autumn, because roots can grow in the year of cutting, and grow rapidly after germination in the spring of the next year. When cutting, a cross ditch with a distance of about 23-27cm shall be cut out on the border, and then the cuttings can be inserted according to the plant spacing of about 15-17cm, and care shall be taken not to insert the cuttings. After the cutting work is completed, the soil can be covered and compacted. At this time, a bud at the apex should be exposed on the soil surface and keep the soil surface moist.
After cutting, we should do a good job in daily maintenance, weeding in time, watering and irrigation frequently, and drainage work if there is a lot of precipitation. At the same time, make a shed to shade it. When the height of the seedlings is 7-10 cm, one strong seedling is reserved for each plant except for the weak ones. After the application of light human and animal manure or ammonium sulfate 3 - 4 times, cultivation can be transplanted in one year.
