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1971年春,我们栽植了100多亩梨园。在梨树生长势弱、定干过高的情况下,1972年春进行了重新定干,结果主干上的短枝、潜伏芽大量萌发,抽成较长的枝条,其数量之多、角度之开张,都较正常修剪树为理想。到冬季修剪时,绝大多数都较好地完成了第一层三主枝的选留。同一般正常修剪的同龄树相比,二次定干树的一级枝多,树冠低矮,枝多紧凑,角度开张,克服了一般梨树枝量少和上强下弱的弊病。
In the spring of 1971, we planted more than 100 acres of pear orchards. In the case of pear growth is weak, dry set too high, the spring of 1972 re-dry, the results of the main spur, latent germination of large numbers of buds, pumping into longer branches, the number of large, the angle of opening , Are better than normal pruning trees as ideal. To the winter pruning, the vast majority of well done the first layer of three main branches of the reservation. Compared with the same normal pruned peer tree, the secondary fixed-dry tree has more branches, lower canopy, more branches and more open angles, which overcomes the shortcomings of less branches and stronger weak branches.