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目前许多山地苹果梨园,因树体衰老,加之果园管理比较粗放,导致病虫害发生比较严重,许多苹果梨园被毁,使苹果梨品质和产量明显下降。为提高其产量和质量,增加经济效益,对苹果梨低产老果园进行更新改造十分必要。一、大枝更新1.疏除大枝。首先疏除上部大枝,打开光路;其次,疏除生长过于强壮、占据空间较多、中下部光秃的大枝。对生长直立、
At present, many mountain pear orchards, due to aging trees, coupled with extensive orchard management, leading to pests and diseases more serious, many apple orchards were destroyed, the apple pear quality and yield decreased significantly. In order to improve its yield and quality and increase economic benefits, it is necessary to renew and rebuild the low-yield old orchard of apple pear. First, the big branch update 1. Sparse big branches. First of all, sparse upper branches, open the light path; Second, thinning growth is too strong, occupy more space, in the lower part of the bare branches. Right upright,