近年来,不少牡丹出现生长老化、新枝瘦弱、空膛秃枝并呈大小年开花现象,针对以上情况,我们采取了一些复壮更新的管理措施,其要点如下: 1.深翻改土:牡丹系多年生小灌木,具有生命周期长、花期长等特点,年年开花,植株养分消耗极大;它喜疏松肥沃土壤,地下根系没有好的土壤层,就易导致老化。特别是我国的牡丹地土壤表层10厘米以下板结严重,排水透气性极差。因此,进行深翻 In recent years, many peonies appear growth and aging, new branches emaciated, bare bore bald and was the size of the annual flowering, in view of the above, we have taken some rejuvenation and management measures, the main points are as follows: Department of perennial shrubs, with a long life cycle, long flowering and other characteristics of flowering every year, plant nutrient consumption is great; it Xi loose fertile soil, underground roots without good soil layer, it is easy to lead to aging. In particular, the surface soil of peony in China is less than 10 centimeter, the compaction is serious, and the drainage air permeability is very poor. Therefore, deep plowing