目前，我国梨树生产上乔砧密植园较多，乔砧梨建国初期营养生长旺盛，树冠易郁闭，结果晚。随着栽培面积的不断扩大，协调树体生长与结果的关系已成为当前迫切需要解决的问题。生产上多采用人工修剪控梢促花，但其劳动量大，技术性强，往往难以达到预期的目的。为了探索一条简 At present, the production of pears in our country is more than that of angels and plantations. In the early years of the founding of Qiao Pei, the vegetative growth was vigorous, and the canopy was easily closed. The result was late. With the continuous expansion of the cultivation area, the relationship between the tree growth and the result has become an urgent problem to be solved. In the production of artificial pruning control more flowers, but its large amount of labor, technical and is often difficult to achieve the desired purpose. In order to explore a simple