柑桔定植以后,由于管理不当,往往会形成小老树。即使管理较好的密植园,也会出现少数的小老树。怎样复壮这些小老树呢? 春季当芽开始萌发时,进行重剪,把整个植株的养分集中到少数生长点上,这样抽发出来的枝梢壮实。其方法是:对纤细枝、病虫枝、下垂枝以疏剪为主;对弱枝,其部位适合作主枝的,应回缩到直径2—3毫米处下剪,但还应与另外几个主枝剪口位置相配合。强枝重剪、弱枝轻剪,几个主枝上抽发出来的新梢应均匀,以平衡树势;对水平枝应回缩到弯曲处之前下剪,抽发出来的新梢才能与主干保持一定夹角,方可复壮。同时,水平枝弯曲处易发徒长枝,搅乱树形,水平枝本身也不易抽出壮梢。剪后2—3天,将萌发的芽全部抹掉,以刺激剪口下多发芽,有利于选择。当新梢长度达2—3厘米时,进行定梢。对弱梢或着生位置不当的应疏去,过密的 Citrus planting, due to improper management, tend to form a small old tree. Even if the management of a better close plantation, there will be a small number of small trees. How to rejuvenate these little trees? When the buds began to germinate in spring, we carried out heavy cutting and concentrated the nutrients of the whole plant to a few growing points. The method is: slender branches, pest branches, drooping branches dredging shear; weak branches, the site suitable for the main branch, should be retracted to a diameter of 2-3 mm at the shear, but also with the other Several main branches notch location match. Strong branch heavy shear, weak branch light cut, several main branch of the pumping out of the shoot should be uniform to balance the tree potential; horizontal branch should be retracted to the bend before the next cut, pumping out the new shoots to be with Maintain a certain angle, before rejuvenation. At the same time, the level of branches prone to hair bending branches, disrupting the tree, horizontal branches itself is not easy to pull out the strong shoots. After 2-3 days of cutting, the germinated buds are all erased to stimulate more sprouting under the cut, which is good for selection. When the shoot length of 2-3 cm, the fixed pin. Misdirected or improper position should be sparse, too dense