介绍一种果树大枝开张器管理粗放果园的果树，有不少直立强旺的大枝，通常采用木棍支撑使其开张角度，但此法一次开张的角度不能太大，否则易劈裂，一般需２～３年才能完成，且木棍不易固定。为此，我们设计了一种简易的果树大枝开张器（如图１），效果很好，现将其制造方... Introduce a fruit tree big branch Opener to manage the fruit trees of extensive orchard, there are a lot of upright strong branches, usually using stick support to open its point of view, but this method can not be opened too much angle, or easy to splitting, the general need 2 to 3 years to complete, and the stick is not easy to fix. To this end, we designed a simple fruit tree branch opening device (Figure 1), the effect is very good, and now its manufacturer ...