Evaluation of soil nutrient status in poplar forest soil by soil nutrient systematic approach

被引:6
|
作者
Yu Chang-bing
Chen Fang
Luo Zhi-jian
Chen Wei-wen
机构
[1] Chinese Academy of Sciences,Wuhan Botanical Garden
[2] Hubei Academic of Forestry Science,Institute of Forestry Protection
关键词
Soil nutrient status; Soil Nutrient Systematic Approach; Poplar plantation; Limiting factor; Evaluation method; Soil physiochemical properties;
D O I
10.1007/BF02844957
中图分类号
学科分类号
摘要
A study was conducted to evaluate the soil nutrient status of poplar plantation by Soil Nutrient Systematic Approach (SNSA) in Jianghan Plain, Hubei Province, China. Soil physiochemical properties were analyzed in laboratory through collection soil samples of study site. Ten treatments of application different fertilizers were designed such as CK, optimum treatment (N, P, K, Zn), −N(P, K, Zn), −P(N, K, Zn), −K(N, P, Zn), +Mg(N, P, K, Zn, Mg), −Zn (N,P,K), +2P(N, 2P, K, Zn), +2K(N, P, 2K, Zn), and 2N+2P+2K(2N, 2P, 2K, Zn) for field experiment to test the effect on tree height, diameter (DBH) growth, and dry weight of poplar. The results showed that there was no significant difference in tree heights between treatments with different fertilizers, diameter growth of poplar trees in treatments of lack of N and Zn was significantly slower than that of trees in optimum treatment, and dry weight of poplar dropped significantly for treatment of CK as well as treatments without application N and Zn. It is concluded that N and Zn were main limiting factor for poplar growth. Results from laboratory analysis and field experiment were uniform perfectly, which proved that SNSA was reliable in evaluating soil nutrient status of poplar plantation.
引用
收藏
页码:298 / 300
页数:2
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