The invention is suitable for deep, fertile and loose soil conditions. High crown, firm trunk structure, large bearing area, high load, good ventilation and lighting, large branches, and high yield when entering full fruit stage. However, the early yield was low, the indoor light was insufficient, and the tree management was inconvenient. Suitable for sparse planting. Trees have obvious central trunk, which is different from sparse trunk shape. When it reaches a predetermined height and the number of layers is formed, it will be happy again. The height of trunk is 50 ~ 120 cm, which varies with site conditions and cultivation habits. The trunk with good site conditions can be higher, and the trunk with poor site conditions can be lower. The whole tree generally has five main branches, divided into two layers, three in the first layer and two in the second layer; The main branches of each layer are arranged in an empty space, and they are scattered and do not affect each other. The spacing between the three main branches in the first layer is 25-30cm, the spacing between the two main branches in the second layer is 40-50cm, the spacing between the two main branches is 80- 120cm, the footing of the lower main branch is 50-60, and the footing of the second main branch is 60-65. 2 ~ 3 lateral branches are cultivated on each main branch, and the whole tree has about 13 lateral branches. The first lateral branch of each main branch is preferably selected in the same direction. The first lateral branch is 40 ~ 60 cm away from the main branch, flat or inclined. The included angle of the lateral branches is greater than that of the main branches. The second lateral branch is on the left side of the first lateral branch in the opposite direction, and the distance between the two lateral branches is 30-50 cm.

Basic plastic surgery techniques: ① Fixing the stem. After the grafted seedlings are planted, the chestnuts are cut 50 ~ 120 cm above the ground, that is, dried. Pay attention to cut and leave 6 ~ 8 full buds. After the stem is fixed, it promotes the germination of more than 5 strong branches. (2) Select the extension branch of the central main branch, and select the upright and vigorous branch (usually the top branch) as the extension branch of the central main branch. (3) cultivating the first layer of main branches, and selecting three branches with staggered directions, an included angle of about 120 and proper branch spacing as the first layer of main branches among the sprouted robust branches. Generally, the direction of the next main branch is south or downhill (for sloping land). If the number of branches is not enough, you can pick or cut off the extended branches of the central leadership trunk, and continue to select the main branches with newly sprouted branches. The selected main branches will open at a certain angle from August to September. ④ Utilization of other branches. Other sprouting branches (new branches) of the core are once every 20 ~ 30 cm. Cultivate auxiliary branches and fruiting branches. ⑤ Select and cultivate lateral branches. The new shoot of the main branch is cored (provided the length is enough) or the lateral branch is cultivated by short cutting in winter. The cultivation method of the lateral branch is the same as that of the main branch. The lateral branches are required to grow obliquely or laterally, and they are scattered around the main branches. ⑥ Also cultivate the two main branches of the second layer. Note that the two layers of main branches should be scattered in space. ⑦ After the top main branch of the second floor grows, cut off the upper part of the top main branch of the central leadership trunk and make a satisfactory ending, and the tree will take shape.