The small crown sparse layer shape is simplified on the basis of the large crown trunk sparse layer shape, and is suitable for medium-density planting and gardening. Compared with the main trunk sparsely layered shape, its differences are: first, the crown is small, the trunk height is 40 to 50 cm, the tree height is 2.5 to 3.5 meters, the crown diameter is 3 meters, and the crown is semicircular. Second, although the number of main branches is also 5, the length and thickness of the main branches are shortened, and the spacing between layers is also reduced accordingly. The number of main branches on the first layer is 3, evenly distributed, the distance within the layer is about 15 cm, and the base angle of the main branches is 60° to 70°; the number of main branches on the second layer is 2, the distance between layers is 15 cm, and the base angle of the main branches is slightly smaller than the first layer. The distance between the first and second floors is kept at about 80 cm. Select 2 side branches for each main branch in the first layer, with a spacing of 50 to 60 cm between side branches. Select 1 to 2 side branches for each main branch in the second layer.

It takes 4 to 5 years to complete the small crown sparsely layered tree shape. In the first year, the stem is fixed during the growing season, and the height of the stem is 60 to 70 cm. An upright new shoot is selected under the cut as the central leading stem. Select 3 new shoots with good extension direction as the first layer of main branches, and stretch the main branches to open angles; when the main branches grow to more than 70 cm, cut them short at 70 cm to promote the first side branches. If less than 3 main branches are cultivated in the first year, the cultivation can be continued on the extended branches of the pruned central leading trunk in the second year. For new shoots other than the main side branches, cut them short and pinch them when they grow to more than 30 centimeters to promote branching and produce fruit as soon as possible.

In the second year, cut the central leading trunk 80 to 100 cm away from the upper part of the third main branch to promote branch growth and use it to select the second layer of main branches; Shorten the branch 60-70 cm away from the main trunk and cultivate the first side branch; continue to extend the main branch and select the second side branch on the other side 50-60 cm away from the first side branch. In this way, the lateral branches of the second and third main branches are cultivated. When the lateral branches reach 50 cm, they are propped up and at the same time, they are pinched to promote branching and used to cultivate the fruiting branch group. In the winter, the central leadership cadres will be short-term and short-term.

In the third year, we will continue to select new leaders who have grown rapidly as central leaders. Select the new shoots with better performance in both directions as the second layer of main branches; if the selection requirements are not met, carve buds or topping the central leadership stem to promote the growth of new shoots and continue to select the second layer of main branches. In winter, shorten the second-layer main branches that grow to more than 60 cm to promote the growth of side branches. Thin out or retract auxiliary branches growing on the main branches and central leading trunk.

In the fourth and fifth years, if the main and side branches are fully deployed, be happy with the central leadership. Shorten or retract the extension head of the main branch to keep the length of the main branch stable; adjust the fruiting branch group on the side branches and adopt alternate retraction and shortening to ensure the results while avoiding excessive growth that affects the balance between the main branches. Lighting between layers. The temporary fruiting branches growing on the central leading trunk, main branches, and side branches should be appropriately retracted or thinned out, so as not to affect the upper and lower lighting.