笔者经过多年实践，摸索出一种桃苗夏季嫁接新法——双刀法，嫁接成活率达９５％以上，出圃率达９０％以上。１双刃刀的制作选一韧性较强的杂木加工成刀柄，长约１２～１３ｃｍ，横截面呈正方形，边长为１．２～１．４ｃｍ。在刀柄一端的任一边偏上角旋入螺钉（要求螺钉长... After years of practice, the author worked out a new method of grafting summer peach seedlings - double knife method, the graft survival rate of more than 95%, the rate of more than 90%. A double-edged knife production Choose a strong tough wood processing into a handle, about 12 ~ 13cm, cross-section was square, side length of 1.2 ~ 1.4cm. In one side of the handle on either side of the upper screwed screw (requires long screw ...