1.搞好整形修剪定植后的1～3年是培养丰产树形的关键时期。密植山楂园要采用主干高30厘米,树冠不超过3米,保留4～5个骨干枝,在骨干枝上培养大、中、小型结果枝组的低干、矮冠、少干、多辅养枝的多主枝开心形或二层楼树形。这种树形通风透光好,成形快,树冠矮小,产量高,5年生时, 1 do a good job of plastic trimming 1 to 3 years after planting is a critical period for cultivating high yield tree. Densely packed hawthorn garden to use the trunk height of 30 cm, the crown of not more than 3 meters, retaining 4 to 5 backbone branches, in the backbone of the branch to cultivate large, medium and small results Zhizu group of low dry, short crowns, less dry, more support Branch of the main branch happy or two-story tree. This tree-shaped ventilation and good light, forming fast, short canopy, high yield, 5-year-old,