1, ordinary scissors have long blades and short handles. Gardening scissors with short blade and long handle. Mainly use the lever principle to increase the arm of force, because cutting branches is always more laborious than paper-cutting and cloth.
The cutting edge of ordinary scissors is straight. When it is used to cut branches, the upper and lower cutting edges are pressed against the branches, which makes it easy to split the branches. The cutting edge of gardening shears (branch shears) is round. When pruning, the force used makes the upper cutting edge gradually enter the branches, and the lower opening plays the role of supporting the branches so that the branches will not break. And scissors are very labor-saving to use.
Second, the use of gardening scissors
1, adjust the reasonable distribution of branches and leaves. That is, on the basis of reshaping, the density, distribution direction and leaf area coefficient of each part of the crown are adjusted to maximize the effective photosynthetic area of the crown.
2. Adjust growth and results. Make nutrition grow normally but not too much; Moderate flowering and fruiting without weakening the tree; At the same time, it can prevent fruit trees from aging ahead of time and renew and rejuvenate in time.
3. Adjust the proportion of branches. Different tree species and tree ages need to have corresponding and appropriate branch proportions, so that the operation, distribution, consumption and accumulation of nutrients in a year's growth cycle can be coordinated according to the normal growth and reproduction rhythm.
4. Pruning can also balance the growth potential between plants in the population and between the main branches of plants, thus achieving balanced yield and easy management. In addition, pruning is also a means to coordinate the growth of shoot and root system.
Third, how to use gardening pruning shears correctly
When using gardening pruning shears, the correct grip should be: palm of right hand up, four fingers together and separated from thumb, hold the handle of scissors, and the blade of scissors is up and the blade is right. When pruning branches, your left hand and right hand should cooperate closely. When the right hand grabs the branch hard, the left hand pushes the upper end of the branch to the right, and with the help of the lever principle, the branch can be easily cut. Pruning fruit trees in this way, on the one hand, will not be too tired for continuous pruning, on the other hand, the incision is smooth, the wound is easy to heal, and the fruit tree scissors are not easy to be damaged.