Effect of biological agents on survival rate and root growth of Scots Pine seedlings

被引：7
|
作者：
Tang Feng-de
Liang Yong-jun
Han Shi-jie
Gong Wei-guang
Ding Bao-yong
机构：
[1] Chinese Academy of Sciences,Institute of Applied Ecology
[2] Chinese Academy of Sciences,Postgraduate School
[3] Liaoning University,College of Environmental and Life Science
[4] Northeast Forestry University,College of Forest Resources and Environment
[5] Natural preserving Bureau of Changbai Mountain,undefined
来源：
Journal of Forestry Research | 2004年 / 15卷 / 2期
关键词：
Biological agents; var.; Sandy soil; Roots; Survival rate; S723.1; S791.253; A;
D O I：
10.1007/BF02856746
中图分类号：
学科分类号：
摘要：
Two-year-old Scots pine (Pinus sylvstris var.mongolica) seedlings were treated with Pt mycorrhiza powder, ABT root-growing powder, HRC water-absorbing agent and high-yield powder, and planted on the sandy land in Balinyouqi, Inner Mongolia (180°12′13″E and 43°13′05″N). The effect and function of these biological agents on survival rate of seedlings were tested and analyzed by measuring the fine root growth and gross root growth. The results showed that the survival rates of the seedlings treated with Pt3, ABT, and HRC biological agents increased by 29.3%, 23.6%, and 16%, respectively. The regression analysis revealed that the length of fine roots (<2 mm) was positively correlated with seedling survival rate, which means that the Pt3 powder, ABT foot-growing powder and HRC water-absorbing powder increased the survival rates of the seedlings by promoting the growth of fine roots.
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页码：124 / 126
页数：2
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