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(一)根据土壤条件选择树型。目前苹果树的体型有乔化和矮化两种。乔化树体型高大,成龄树一般可长到4—5米,根系深而广,最适宜在山坡地、旱地栽植,株行距离可采用3×4—5米,若在平地建园,一般采用株距为4×5米。矮化树短枝体型,幼树生长旺盛,转入结果期后表现出典型的矮化特征,成龄树一般可长到3—3.5米。平地适宜栽植株行距为2×3—4米的株行距。 选择树型的基本原则,土肥水条件好的平地,适宜栽植矮化型,包括矮化中间砧型和短枝型;土肥
(A) Select the tree according to soil conditions. At present, the size of Apple tree has two kinds of Qiao and dwarf. Qiao tree tall, adult trees can grow to 4-5 meters in general, deep and wide roots, most suitable for hillsides, dry land planting, line spacing can be used 3 × 4-5 meters, if the park construction in the flat, General spacing of 4 × 5 meters. Dwarf tree spur body type, vigorous growth of young trees, transferred into the results of the period showed typical dwarfing characteristics, adult trees can grow to 3-3.5 meters. Suitable for flat planting Plant spacing 2 × 3-4 meters spacing of the line. Select the basic principles of tree type, soil and fertilizer conditions of good land, suitable for planting dwarf, including the dwarf intermediate anvil and spur type; soil fertilizer