The basic principles that should be followed for ornamental flower trimming are roughly the following:
First, plastic pruning should be consistent with ecological and environmental conditions.
Adjust the proportional relationship between the various organs of the plant so that it tends to balance. Adjust the relationship between leaf nutrient, so that a certain proportion of increased growth and thickening growth.
Second, plastic pruning should be consistent with the branches and branches of ornamental trees.
1. The main branches and branches should be strong and weak to form tall and straight crowns.
2. Axle branches such as cherry blossoms, crape myrtle, etc. should be used "removal of the top advantage" method, the top of the annual branches short cut under the mouth to keep strong buds, remove 3 to 4 lateral buds to ensure good growth buds. This method of pruning should be based on the expansion of the crown, increase the number of flowering branches, and promote flowering inside and outside the plant. But the sapling period should be based on the cultivation of the central branch, reasonable selection and arrangement of lateral branches, to achieve the backbone of the obvious.
3. False bifurcation branching flowers, the top end of the growth can not form the top buds, lateral buds opposite. Should remove one, retain the strong buds, in order to cultivate high trunk.
4. Multi-branched branches such as oleander, rudbeckia and other flowers and trees, due to the lack of growth of the top buds, plastic pruning should adopt the "bud method" to re-cultivate the main branch of the center. The number of flower buds of such flowers and trees is related to their perspective When the angle is moderate, there is more flowering and more results.
Third, following the principle of apical dominance, control the tree shape to promote flowering. The strengths and weaknesses of different apical dominance of tree species are different. The main manifestations are:
1. Conifers: The apical dominance is strong, and the competition branches near the main branch can be shortened to control their growth and ensure the apical dominance of the central branch.
2. Broad-leafed trees: The apical dominance is weak, and the canopy is globular. Generally, the relationship between the main lateral branches is adjusted through short cuts, retractions, and bunching branches. The growth of the flowering trees is promoted and the overall tree shape is good. The saplings of these trees are superior to the old trees. Therefore, the saplings should be cut lightly so that they can be quickly formed; the old tree should be cut to make it grow new branches and increase the tree vigor.
Fourth, plastic pruning should consider the use of light energy.
Cut off the top of the shoots to germinate the lateral buds, form more middle and shorter branches and increase the leaf area to increase the utilization of light energy.
Fifth, plastic pruning should meet the laws of tree nutrients distribution and accumulation.
For example, flowers generally undergo flower bud differentiation from July to August, when the nutrition center will shift to the middle and short branches to ensure the number of flowering results. It is necessary to cut the short cuts of Wangzhi and pick up the hearts and promote the concentration of nutrients to the short and medium branches. , should focus on cutting off the overlapping branches, staggered branches and over dense branches, so that both the inside and outside of the crown can see the light, increase photosynthetic products.
Sixth, we must follow the growth and development of trees. Through plastic pruning, regulate the relationship between plant growth and development, so that nutrients supply to the desired site. Because of the different uses of flowers and trees, the purpose and methods of plastic pruning are also different.
1. Street trees: fast growth, high trunk, and prosperous growth in the juvenile period. After forming, the growth of the stem branches can be guaranteed, and heavy cutting can promote growth.
2. Flower and fruit trees: Prevent premature senescence in young trees, attach importance to summer pruning, and use light shear as the main form. After forming, expand the crown while ensuring flowering, but also cultivate the backbone branches at all levels to maintain the balance of the tree. Strictly control Actually long branches, competing branches and disturbing branches. Adults should cultivate permanent branch groups and reserve sufficient branches to alternate flowering adult and preparatory branches to increase ornamental value. For the old dead tree, it should be based on the promotion of root growth. Cut dry and renew. Cutting tips, picking the heart can make the elongation of the shoots suppressed, promote the nutrition to the middle, short branches transport, achieve the purpose of flowering more.
3. Roof gardens and potted trees: In order to achieve beautiful results, it is necessary to control growth and promote dwarfing. Pre-pruning is mainly to promote forming. In later stages, growth is inhibited, and heavy cutting is used to produce large wounds on trunks, which play an old role. The extension of the main and lateral branches is the backbone of the tree. After the formation of the tree, its growth must be controlled.
4. Evergreen trees: The pruning of each season should follow certain rules, and the intensity of pruning should also be different. The general principle is: light cut cuts 1/4 of branches, cut in cut 1/2 of branches, 3. Scissors cut branches 3/4. Before vigorously growing, they must be recut. After vigorous growth, they need to be trimmed according to the shape of the tree.
7. In order to achieve the ideal requirements for ornamental flowers and trees, aesthetic principles should also be followed in the process of pruning. The principle of proportion and scale is more important.
The ratio of the crown width to the tree height of the ornamental trees is different, and the aesthetic effects produced are quite different. When the width and height are =1 to 1, it gives a feeling of correctness; when the width and height are =1.1.414, it gives one A sense of luxury; when the ratio of the two is 1.? 1.732, gives a sense of lightness; when it is 1? 2, there is a kind of handsome sense; when the ratio of the two is 1.?2.36, giving a sense of upward. Balance and stability are also important parts of the aesthetic principle. It is divided into symmetrical and asymmetrical balances. In terms of volume, if it is large or small, there is a sense of insecurity. From the texture, above Meticulous, underneath rough pruning, gives a feeling of stability.
This is a Cognitive Rehabilitation Equipment, by turning the boring learning content into interesting forms like games, animation, pronunciation, etc., children can unknowingly learn knowledge and exercise their skills
Cognitive communication training system including intelligence, AAC auxiliary communication training board, qi hui cognitive training system and speech training card induced by the lead of others, and education, and adopt comprehensive rehabilitation method, let the children actively training, through vivid and interesting game and practice, so as to stimulate a interest, improve the ability of attention, participation, improve the learning efficiency, so as to achieve the goal of training the cognitive function. It is a set of intellectual development software for children with strong knowledge and interest. It scientifically selects a variety of exquisite and colorful pictures and animations of fruits, vegetables and animals suitable for children's observation and recognition. It is full of children's interesting stories and easy to understand children's songs.
Cognitive Rehabilitation Equipment
Speech Therapy Picture Cards,Phonetic Training Instrument,Montessori Teaching Aids,Cognitive Rehabilitation Equipment
jinan Fangqi Sunshine education consulting CO.,LTD. , https://www.fzrehabmarket.com