短枝型苹果细长纺锤形快速成形技术一般短枝型苹果栽植密度较高，在高密（亩栽８３株以上）条件下，宜采用适宜的树形，即细长纺锤形。细长纺锤形的树体结构为：干高５０厘米，中央领导干直立，其上着生小主枝１５个左右，并有若干小辅养枝，树高２．５米左右。过去，细长... Slender spindle spindles rapid prototyping technology Sprig apple general planting density is higher, in the high density (mu planted more than 83) conditions, should adopt the appropriate tree shape, that is, elongated spindle shape. Slender spindle-shaped tree structure: stem height of 50 cm, the central leadership of the dry upright, with a small main branch on the 15 or so, and a number of small auxiliary afforestation, tree height of 2.5 meters. In the past, slender ...