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对生长旺盛的梨苗,在圃内进行夏季摘心,对促进分枝,扩大树冠,开张角度,提早成形,提早结果和早期丰产有着重要的作用。尤其是近几年来开展密植丰产梨园所用的梨苗,更应注意摘心措施。根据我所试验,摘心对不同类型鸭梨苗木对生长和分枝着生的影响如下: 从上表可以看出,同时栽的一年生苗木,由于苗木着生副梢数量不同生长和增加枝量有显著的差别。其中三个副梢的成苗着生分枝最多平均为16.8个,叶片数为156片;其次为二副
For the growth of pear seedlings, summer in the garden topping, to promote branching, crown expansion, open angle, early shape, early results and early yield has an important role. In particular, in recent years to carry out close planting rich pears pear garden, should pay attention to topping measures. According to my test, topping the different types of pear seedlings on the growth and the impact of branch production are as follows: As can be seen from the table, while the planted annual seedlings, growing due to the number of seedling shoots and increase the amount of branches Significant difference. Among them, the shoots of the three shoots reached a maximum of 16.8 and the number of leaves was 156, followed by two