2.φ(DBH)= 8-9 cm high = 4-5 meters.

3. Plant spacing: 2.5m * 2.5m.

cultivate

The suitable plant spacing is 2.5m*2.5m, the digging hole is at least 50cm*50cm*40cm, the fertilization is generally around 10kg, and 75% livestock manure, 18% phosphate fertilizer, 7% potash fertilizer and trace zinc sulfate (to promote tillering and branch and make crown full) are mixed as the base fertilizer. Top dressing should be applied frequently and thinly, once every two months, with urea applied for the first time and compound fertilizer applied later. The planting place should be a sunny place. Extensive management, we should pay attention to the beauty of trees, straighten them in time if they are too long, and trim and shape them when they are young. Tannin in bark can be used as tanning materials and dyes, buds, young leaves and young fruits can be used as vegetables, and bark, flowers and roots can be used as medicine. The wood is hard and suitable for joinery, and the rattan can be used for wooden bowls, pen containers and handicrafts.