论文部分内容阅读
楝树为苏北沿海平原“四旁”绿化的重要树种.由于适应性强,生长快,材质好,用途广,繁殖易,深受群众欢迎,惟每年生长期终了,梢端易受冻害,使顶芽容易脱落.翌年春天,主梢下部的侧芽再萌发生长,形成很多侧枝,造成树干很矮,大大降低了木材的经济价值,为了克服这一缺点,我们分别在大田和住宅区进行了楝树的整形修枝试验,收到了较好的效果,现简报如下:
The neem tree is an important species of tree planting on the “four sides” of the coastal plain in Northern Jiangsu Province.As a result of its strong adaptability, fast growth, good material, wide use and easy breeding, it is welcomed by the public, but the annual growth period ends, In the following spring, the lateral shoots in the lower part of the shoot shoots grow and grow, resulting in many lateral branches, resulting in short trunk and greatly reducing the economic value of the timber. In order to overcome this shortcoming, we conducted neem in the fields and residential areas Tree plastic pruning test, received a good effect, are briefings are as follows: