(2) Get into the habit of looking before cutting: Although many factors need to be considered in pruning fruit trees, these problems cannot be treated equally in specific operations. This requires careful observation of the tree body before cutting, grasping the main contradiction and taking into account the secondary contradiction to make key adjustments. Therefore, experienced people often look at the tree and look around before cutting it down. By observing the skeleton structure of the crown and the distribution of fruiting branches in different directions, the main problems in the requirements of tree pruning principles were found out. Then, aiming at these problems, the technical scheme and its operation steps are determined. This is the experience and statement of "cutting the tree three times around".
(3) Pruning operations should be orderly and step by step: In order to ensure pruning quality and improve work efficiency, pruning operations must be orderly and step by step, and it is not allowed to chop one thing in the east and one thing in the west at will. See Section 4, Chapter 1, Part II for specific pruning steps and operation sequence.
(4) Pruning should be careful to ensure quality: strictly speaking, any branch must be treated seriously and carefully from the perspective of plastic pruning to lay a good foundation for premature, high-yield, high-quality and stable production of trees, taking into account both immediate and long-term comprehensive interests. Every pair of scissors should be thoughtful and well-founded. In terms of technical methods and usage, it must be correct and reasonable, neither light nor heavy, just right, just right. Never do hasty work, just cut down the number of trees, regardless of the quality of the work.
(5) The intention of cutting trees should be clear: in order to facilitate inspection, trees are generally divided according to people and people are determined according to lines, rather than cutting one plant in the east and one plant in the west at will. Because there are some differences in pruning ideas between people, we should try our best to cut down the trees we have cut at one time anyway, and we should not give up halfway and throw the unfinished trees to others to clean up. In order to make fruit trees take shape quickly, bear fruit early, and have high quality and high yield for a long time, they must be pruned continuously every year according to the structure of the target tree in the young tree period, and pruning every other year and pruning with branches are not allowed. If pruning is unplanned and irregular, it will form more and larger branches every few years, which will interfere with the reasonable construction of tree skeleton structure and the timely cultivation of fruiting branches. Years of practice have proved that it is very difficult to transform disordered trees without cutting and pruning. Mainly in the process of adjusting the structure and straightening out the branch order. On the one hand, pruning affects the tree potential, on the other hand, it is laborious and labor-intensive, and the effect is not good. Especially those branches that have been obviously weakened after years of uniaxial stretching, it is difficult to cultivate the backbone branches that meet the requirements, and it is easy to stimulate the trees to grow in vain in the process of retraction and transformation, which will do more harm than good. In addition, in order to consider the convenience of others' pruning in the future, the pruning intention must be clear in the cultivation of backbone branches and fruiting branches. In order to prevent others from being difficult to distinguish when pruning in the future, it will change from year to year and affect the crown forming speed and stable results.
(6) Prevent accidents and spread of pests and diseases: When many people prune the same tree, they should pay attention to each other and give consideration to other people's homework to prevent accidents caused by accidental pruning of branches. Branches with pests and diseases should generally be cut off or scraped off, and immediately burned or taken out of the garden. At the same time, the pruning tools after operation should also be strictly disinfected, and they can only be moved to other branches for pruning after being burned or treated with 0. 1% mercury chloride. Its purpose is to prevent the spread of pests and diseases. Large-area wounds caused by pruning also need to be disinfected and protected in time. Its function is not only to control the invasion of pests and diseases from wounds into trees, but also to reduce transpiration and water loss and promote wound healing.