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试验在开原县莲花乡保安村山楂园内进行。该园有3500株山楂树,其中成龄树2100株。过去只进行粗放修剪,树势弱,产量低。在该园内选立地条件、树体大小、树势、树龄相近的15株树,分别做不剪、中剪、重剪三个不同程度修剪。中剪是除对骨
The trial was conducted in Hawthorn Garden, Baoan Village, Lianhua Township, Kaiyuan County. The park has 3,500 Hawthorn trees, of which 2,100 adult trees. In the past only extensive pruning, weak trees, low yields. Selected in the park conditions, tree size, tree potential, age of 15 similar trees, respectively, do not cut, in the shear, heavy shear three different degrees of pruning. In the shear is in addition to bone