The trunk of this tree is 40 ~ 50 cm high and the height of the tree is 2.7 ~ 3.4 meters. There are 10 ~ 15 big branches on the middle trunk, and the big, middle and small fruit branches are directly planted on the big branches.
After planting, 70 ~ 90cm of stem should be reserved at the first 1 year, and all sprouting branches outside the plastic belt should be reserved, so as to increase the amount of branches and leaves, enlarge the photosynthetic area, increase nutrient accumulation and promote the development of shoot and root system.
In the second year after planting, 1 annual branches with three angles, suitable orientation and vigorous growth were selected as 1 layer, with a short section of about 35 cm, and the opening angle was increased to 75 ~ 85 degrees by adding braces. For other branches, they are flattened or smoothed and then slowly put into the flowers.
In the third year after planting, a medium-sized fruiting branch group was selected at a distance of 30 ~ 35 cm from the main branch of 1 layer, and several small fruiting branches were selected according to the space size. Medium-sized fruiting branches can be cultivated by cutting first and then releasing, so that the crown expands rapidly and all other branches are released slowly; At 45 ~ 50 cm above the third main branch of 1 layer, a large fruiting branch group was also cultivated by cutting first and then releasing. The extension of each main branch is cut about 35 cm short, and the extension of the middle main branch is cut about 50 cm short.
In the fourth year after planting, the fruiting branches continued to be cultivated on the three main branches of 1 layer, and the other branches continued to release slowly. For upright branches, if they are not suitable for use, they should be thinned, and if they need to be used, they should be smoothed in time and bloom slowly. Continue to select the fruiting branches in the middle trunk, and deal with the auxiliary branches that have already borne fruit according to the situation.
After entering the full fruiting period, we should pay attention to the cultivation and renewal of fruiting branches, adopt the "three sets of branches pruning method", always maintain the healthy growth of fruiting branches, and pay attention to adjusting the relative balance between growth and fruiting; Using retraction method, the front end bears fruit and the base promotes branches; According to the total number of branches and light conditions, gradually clean up the temporary auxiliary branches preserved over the years to maintain good ventilation and light transmission conditions. When the tree is 2.7 ~ 3.0 meters high, it falls down happily. After the age of the tree reaches 8 years, the crown begins to hand over, which can be adjusted by changing the extension direction of the extension branches.
When the opening angle of the main branch is small, do not use the method of changing the back branches on the 2-and 3-year-old branches, but use the method of pulling the opening angle to prevent the number of branches from decreasing, the crown from narrowing and the fruiting period from being delayed. When cleaning up temporary auxiliary branches, don't treat too much at a time, so as not to cause trees to return to prosperity and delay the fruiting period. In summer, attention should be paid to pruning, stretching and other methods should be adopted to widen the angle, coring and other methods should be adopted for many times, the number of branches should be increased, and measures such as ring carving, twisting the tip and bare branches should be taken to inhibit flourishing growth and promote flowering.