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日本长野县果树试验场进行以圆叶海棠为基砧、M26为中间砧(中间砧长为30cm)的富士苹果不同栽植方法的试验。栽植距离为1.5×4m,树形为纺锤形。两种栽植方法是:中间砧露在地面以上(中间砧与基砧嫁接接合部离地表5cm以下)和中间砧的一半埋在地面以下(秋季在树基部埋土至中间砧的一半高度)。结果表明,定植后4～5年,中间砧露地苹果树树体生长减弱,9年生时其树体大小只有中间砧
Japan’s Nagano fruit tree test site to conduct the test of the different cultivation methods of Fuji apple with the leaf-begonia as the rootstock, M26 as the intermediate anvil (the middle anvil length is 30cm). Planting distance of 1.5 × 4m, tree-shaped spindle. The two planting methods are: the middle anvil exposed above the ground (the middle anvil and the rootstock grafting joint 5cm below the surface) and the anvil half buried in the ground below the ground (in autumn in the base of the tree buried to half the height of the anvil). The results showed that the growth of apple tree in the exposed ground of the middle anvil was weakened from 4 to 5 years after planting, and only the intermediate anvil