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评价一个果园或一棵树修剪质量的好坏,是生产上的一项经常性、争论较多、难度较大的工作。如果没有比较客观的评价标准,则很难全面提高修剪质量。笔者总结近年教学和生产实践经验,以密植苹果采用纺锤形树形为例,提出衡量盛果期苹果树修剪质量的七个标准,供同行研讨和参考。 1.对群体结构的处理。主要看其修剪手法(或方案)是否有利于果园群体光合性能的改善。(1)对已出现郁闭的果园,其修剪应体现出打开光路、引光入行的思路,如对轻度郁闭果园采取转头,对中度郁闭园采取压缩,对高度郁闭
Evaluating the quality of an orchard or a tree pruning is a recurring, controversial and difficult task in production. Without more objective evaluation criteria, it is difficult to fully improve the quality of pruning. The author summarizes recent years teaching and production experience in practice, to densely-woven apple spindle-shaped tree as an example, proposed to measure fruit tree pruning seven criteria for peer research and reference. 1. The treatment of group structure. Mainly to see if its pruning practices (or programs) are conducive to the orchard population photosynthetic properties. (1) For orchards that have been closed, their pruning should embody the idea of opening the light path and introducing the light into the light path. For example, if the light orchard is closed, the moderate oryx may be compressed,