(1) Field investigation and inspection: The fruit tree itself is a living recorder. Observing and investigating the biological reactions of various organs of the tree can help us find gaps in management. If the "big and small year" fruiting phenomenon is serious, it means that the amount of fruit left on varieties with high fruit setting rates is too large, which creates a vicious cycle in the distribution and consumption of tree nutrients; more inner branches die and the fruiting parts are seriously moved outward, which means that the number of fruits left is too large. The number of branches is too large, which affects the ventilation and light transmission of the crown; the "bare legs" in the middle and lower parts of the branches are serious, indicating that varieties with low germination rates are cut too long. Therefore, careful investigation and analysis of the abnormal performance of various fruit trees in the field can provide scientific basis for formulating reasonable technical solutions. At the same time, we should also visit other places as much as possible to fully absorb the advanced experience and mistakes in pruning and transforming abnormal trees in the past, which can help us avoid detours and increase the accuracy of technical solutions.

(2) Data collection and analysis: In addition to directly obtaining first-hand information through field surveys and inspections, you should also go to reference rooms and libraries to consult literature and collect a wide range of relevant technical information. Then organize technical forces to conduct repeated discussions and analysis of these data, thereby laying a solid foundation for formulating technical plans for pruning and transforming abnormal trees.

(3) Formulation and demonstration of technical plans: The formulation of technical plans requires comprehensive, systematic, rigorous, detailed and specific, fully estimates possible problems that may arise during the implementation process, and proposes technical countermeasures. For large-scale abnormal tree transformation, experts should also be invited to conduct technical demonstrations and submit feasibility reports, which should then be archived to provide a basis for future work summary. Areas that have the conditions can also apply for project approval from relevant departments. On the one hand, they can obtain funding, and on the other hand, they can be used as in-depth research and summary of technology development experience for future promotion.