我社于壁等大队老山楂园具有百余年的历史,老园山楂树冠大多数中央于偏心生长呈多主枝自然半圆形,主枝一层密挤,内膛枝条交权。生长细弱通风透光不良,影响果品产量,这些树都是自栽植定干,或不定干,任其自然生长所造成的,所以山楂幼树整形修剪防止偏冠是一项重要的技术措施。段 I clubs in the wall and other brigades Old Hawthorn Park has a history of more than 100 years, most of the central old garden hawthorn crown in the eccentric growth of the main branch of the natural semicircle, the main branch of a layer of dense crowded, the broom cross power. Poor growth and weak ventilation, affecting fruit production, these trees are planted dry, or indefinitely dry, any of its natural growth caused, so hawthorn sapling trimming prevent crown is an important technical measure. segment