Note: when the scion is tense, the long branch can be cut into two sections for later use. When grafting, when the rootstock is too thick and the scion is thin, one side of the scion can be bound by the aligned cambium. After pouring water into the heel for the first time, you must never spray water or water, which is the main reason for the low survival rate in the past. Three-stage cutting of rootstock is also called three-stage cutting, which is an effective measure to improve the survival rate and cannot be changed at will. Ensure the light, temperature and humidity in the greenhouse. On sunny days, the sun will come out in the morning and set before sunset in the afternoon. Don't set it on snowy days, which is convenient for sweeping snow. To improve the temperature and humidity, you can use a double-layer shed door, the first layer is original, and the second layer is thatched or quilt. 1. Cylindrical: the trunk of cypress is obvious and there are many main branches. If the main branches come from the same part of the trunk, one must be cut off, leaving only one main branch in each round. The main branches are generally 20-30cm apart and randomly distributed. Each main branch should be cut into short sections, and the cut should fall on the small side branches that grow upward to ensure the beautiful tree shape. The twigs in the main branches should be thinned early to facilitate light transmission. During the growth period, when the new branches grow to 10- 15cm, they should be cut 2-8 times a year to prevent the excessive growth of the branches. The pruning of main branches should be gradually shortened from bottom to top to promote the formation of cylinders. Pay attention to control the competitive branches at the top of the trunk and avoid branching trees. Pruning of big branches is mainly carried out in dormant period to avoid juice outflow.
Second, leap shape: generally, a small number of main branches and side branches are evenly reserved to make them grow out, and the rest of the main branches and side branches are all cut short. During the growth period, the new shoots of the whole tree are pruned for 6-8 times, and the length of the main branches and lateral branches protruding from the crown is kept at 1 1.5 times the diameter of the crown, forming a posture of dragon leaping out of the crown.
3. Artificial shaping: In addition to naturally growing into a tower shape, cypress trees often create various shapes according to the design intent, but it should be noted that the shape of the tree should be coordinated with the surrounding landscape, the lines should not be too cumbersome, and the outline should be clear and concise. The specific method of shaping depends on the skill of trimmer, and it is often trimmed by making outline patterns in advance with brown rope or lead wire. Climb up and knead animal images such as Jackie Chan, horse, lion, deer and elephant. Longbai likes big fat water. Combined with irrigation after planting, topdressing should be done 2-3 times in the first year, with urea 15kg per mu each time, and fertilization should be stopped after autumn. In the early spring of the following year, combined with watering green water, compound fertilizer with slightly higher nitrogen content, 40 kg per mu, was applied by furrow application. Because Sabina vulgaris has shallow roots and many horizontal roots, furrowing and fertilizing should be adopted to avoid root damage as much as possible. In summer, topdressing urea 2-3 times, 25 kg per mu each time.