苗木固有的生长习性及具体立地条件，苗木主侧枝分布结构是否合理，主侧枝间

The inherent growth habits and specific site conditions of the seedlings, whether the distribution structure of the main side branches of the seedlings is reasonable, whether the growth momentum between the main side branches and the canopy is balanced, whether the relationship between vegetative growth and reproductive growth is coordinated, etc. After comprehensive analysis, the corresponding pruning technical measures are determined. Some perennial branches that even affect the growth and development of the tree, destroy the tree structure, disturb the tree shape, and suffer from the damage of pests and diseases, or even the backbone branches, are cut first, so that the trees can basically achieve the purpose and requirements of plastic pruning. On the basis that the structure of the tree basically meets the requirements of the purpose, the main side branches are pruned specifically, following the principles of staying strong and not weak, leaving the outside and not the inside. Plastic surgery is more perfect. After the pruning is basically completed, carefully review the entire tree body, and correct or supplement the wrong and missed cuts. From the perspective of the group, check how the adjacent trees affect each other and make adjustments.

The inherent growth habits and specific standing conditions of seedlings, whether the distribution structure of the main side branches of seedlings is reasonable, whether the growth potential between the main side branches and the tree canopy is balanced, whether the relationship between nutritional growth and reproductive growth is coordinated, etc., after comprehensive analysis, the corresponding pruning technical measures are determined. Put some affect the growth and development of trees, destroy the tree structure, disturb the tree shape, suffering from the disease of the perennial branches, and even the backbone of the branches sawfirst, so that the trees basically achieve the purpose and requirements of plastic pruning. On the basis that the structure of the tree body basically conforms to the requirements of the purpose, and then the specific pruning of the main side branches, follow the principle of staying strong and not leaving weak, leaving outside, using short-cut, dredging and other techniques, so that the shape of the tree is more perfect. After pruning is basically completed, the whole tree body is carefully reviewed, the wrong cut, missing cut place to give correction or shearing, from a group point of view, check the adjacent trees between the interaction and adjust

According to the inherent growth habits and site conditions of the seedlings, whether the distribution structure of the main and lateral branches of the seedlings is reasonable, whether the growth potential between the main lateral branches and the top and bottom of the tree crown is balanced, and whether the relationship between the vegetative growth and reproductive growth is harmonious, etc., the corresponding pruning technical measures are determined after comprehensive analysis. In order to achieve the purpose and requirement of pruning, some perennial branches, even the backbone branches, which affect the growth and development of trees, destroy the tree structure, disturb the tree shape, and suffer from diseases and insect pests, are cut first. On the basis that the structure and shape of the tree basically meet the requirements of the purpose, the main and lateral branches should be pruned specifically, following the principle of retaining the strong without leaving the weak, leaving the outside without leaving the inside, and using the techniques of short cutting and thinning branches to make the shaping of the trees more perfect. After the pruning is basically completed, the whole tree body shall be carefully reviewed, and the wrong and missed cutting places shall be corrected or supplemented. From the perspective of population, the mutual influence of adjacent trees shall be checked and adjusted