苦楝树,喜阳光、耐庇荫、耐盐碱、耐水湿、不怕旱、适应性强,而且生长快、材质好,是四旁绿化和优良的用材树种.但是,由于该树种每年生长期长,直至入冬才停止生长,树木梢头养分不足,木质化不好,受严冬低温影响,梢头部分的顶芽和侧芽来春往往不能萌发,即使萌发,抽条生长慢,长势弱,相反,中部的侧芽受影响小,萌发力强,发出的侧枝生长很快,几年后就形成了枝叉横生、主干低矮的鹿角形树体,不易 Neem tree, like the sun, shade, salinity, water wet, not afraid of drought, adaptability, and fast growth, good material, is surrounded by greening and excellent timber species. However, the tree grows long each year until Winter before they stopped growing, trees lack of nutrients, lignification is not good, affected by the cold winter temperature, the tip of the top buds and lateral buds spring can not often germinate, even when germination, sprout growth slow, weak growth, on the contrary, Little influence, strong germination, issued by the rapid growth of the branches, a few years after the formation of cross branches, trunk low antlers tree, not easy