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中山柏是从墨西哥柏群体中选育出来的优良栽培类型,其适应范围广,生长快,对土壤要求不严。2年生苗年平均高生长量为80-90厘米,最高单株达117厘米;7年生大树年平均高生长量86厘米,径生长量1.8厘米,而同龄的铅笔柏年平均高生长量只67厘米,径生长量1.2厘米。在含石率高达70％、土层仅30厘米的土壤上,中山柏2年生苗年平均高生长量仍达69厘米。在我场,中山柏2月下旬开始萌动,11月底才停止生长,生长期长达280天左右。
The cypress is a good type of cultivation that is bred from the Mexican cypress population and has a wide range of adaptation, rapid growth and less stringent requirements on the soil. 2-year-old average annual growth height of 80-90 cm, the highest single plant of 117 cm; 7-year-old tree average annual growth of 86 cm, diameter growth of 1.8 cm, while the same age, 67 cm, diameter growth of 1.2 cm. In the soil containing 70% of rock and only 30 cm soil layer, the annual average height growth of 2-year-old ZhongBai still reached 69 cm. In my field, Zhongshan Bai started germinating in late February and stopped growing until the end of November with a growth period of 280 days.