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近日,北京园林学会苗圃专业委员会在京召开了座谈会,与会专家、教授们就今后首都苗木发展前景展开了热烈的讨论,现综合报道如下: 落叶乔木类绿化工程方面,目前需直径8—10厘米的毛白杨和4—5厘米以上的大苗垂柳。而且点名要雄株,不要雌株。馒头柳目前不那么热门。栾树、臭椿市场上比较受欢迎,但苦于没有大的苗木。尤其红果臭椿,秋天一来一片红,而且抗化工污染。很适合化工区的绿化。但这几年臭椿的根部病虫害较严重,这个问题不解决,将会影响苗木销售
Recently, Beijing Institute of Landscape Nursery Professional Committee held a symposium in Beijing, participating experts and professors on the prospects for the future development of seedlings in the capital of the heated discussions are as follows: Deciduous tree afforestation projects, the current diameter of 8-10 cm Poplar and weeping willow over 4-5 cm. And named to male plants, not female plants. Liu bread is not so popular at the moment. Luan tree, Ailanthus on the market more popular, but suffer from no large seedlings. In particular, red Ailanthus altissima, autumn a red, but also resistant to chemical pollution. Very suitable for the greening of the chemical area. But in recent years Ailanthus altitudinal pests and diseases more serious, this problem is not resolved, will affect the sales of nursery stock