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衰老杏树的更新修剪,常需对大枝乃至中枝进行回缩,伤口较大,宜在早春发芽时进行,以利伤口的愈合和隐芽的萌发。 一、回缩衰老枝。更新修剪的做法是按原来的树体骨干枝的主从关系,先主枝,后侧枝依次进行回缩。掌握“粗枝长留,细枝短留”的原则。一般可锯去原有枝长的1/3—1/2。为了有利于伤口的愈合,锯口宜落在一个“跟枝”前面3—5厘米处。“跟枝”应是一个较壮的、向上的枝条或枝组,同时“跟
Apricot tree renewal pruning, often require large branches and branches in the retraction, larger wounds, should be carried out in early spring germination, in order to facilitate wound healing and bud germination. First, the contraction of aging branches. Pruning update the practice is based on the original main branch of the tree trunk from the relationship between the main branch, followed by retraction of the lateral branches. Grasp the “thick sticks stay long, thin sticks stay” principle. Generally saw the original branch length of 1 / 3-1 / 2. In order to facilitate the healing of the wound, the saw mouth should fall in front of a “stick” 3-5 cm. “With branches” should be a stronger, upward branches or branches, at the same time "with