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洋槐幼树修剪,是为了促进高生长和培养优良的干形。而洋槐树的特点则大都是“主侧不明,不断换头”。影响了生长。所以,解决换头问题是洋槐幼树修枝的关键。洋槐为什么会换头呢?据我们初步调查有以下几个原因:(1)洋槐一年生枝条上部不充实、芽弱,不生强技。其下萌生强枝。(2)一年生旺枝上端易弯,萌枝后垂头弯腰,下部被迫出徒长枝。(3)洋槐生长和养价的供应常常脱节,所以有些枝萌生的嫩梢,前期上强下弱,后期则下强上弱。(4)有的大枝对生、轮生,造成卡脖。
Acacia young tree pruning, is to promote high growth and cultivation of fine dry shape. The characteristics of acacia trees are mostly “unknown side of the main, constantly changing heads.” Affect the growth. Therefore, to solve the problem of head replacement is the key to cultivating young acacia tree. Why does acacia change head? According to our preliminary investigation for the following reasons: (1) Acacia annual branches of the upper part is not full, buds weak, not strong skills. Under the strong sprouting branches. (2) annual branch wangzhi upper bend, Meng branch bent down, the lower forced out branches. (3) Acacia growth and supply of prices are often out of line, so some twig shoots young shoots, strong early weak, the latter strong under the weak. (4) Some large branches of students, rotation, causing the card neck.