Diameter 30 cm, Hunan boutique Luan tree, 35 cm skeleton Luan tree, large Koelreuteria

Diameter 30 cm, Hunan boutique Luan tree, 35 cm skeleton Luan tree, large tree transplanting large seedling cultivation Luan generally when the trunk height height of branching points, leaving the main branch, three to four years may Chupu. Seedling dry year is not straight or not up to the standard set of dry, re-training the following year after stumping. Generally after two transplants, and cultured for 3 to 6 years, diameter can reach 4 ~ 8cm. Planting density: 4 ~ 5cm diameter per acre of 600 or so per acre 6 ~ 8cm diameter of 200-300, elected to stay 3-5 main branch, short as of 40cm, each main branch stay 2-3 collateral, crown height ratio of 1: 3. Cultivate stem diameter 8 ~ 12cm crown seedlings per acre planted 160 to 170, that spacing 2m × 2m; cultivate stem diameter of 12cm and larger seedlings, planting 130 per acre, that spacing 2m × 2.5m. Combined tending, pruning dry branches sprout below 1.5m high, in order to promote the growth of the trunk straight. Luan tree seedlings shaping and pruning crown nearly spherical, tree upright, generally using natural style tree. Due to different uses, its plastic requirements also vary. Trees with seedlings require trunk straight, the first branch height of 2.5 ~ 3.5m, complete full crown, branches evenly distributed, carry. Shade trees court requires huge canopy, dense branching height lower than the first trees. In the training process, should take appropriate measures to trim around the above requirements. Generally carried out in the winter or transplant. Luan tree cold and drought, often cultivated as a garden ornamental tree. Yellow-white wood, easy processing, can be made furniture; leaves can be used as a blue dye, flowers for medicinal purposes, can also make a yellow dye.