Spatial distribution characteristics of trace element content in tobacco and soil in Luliang of Yunnan province and the main influencing factors
The contents of trace elements (Cu, Zn, Fe, Mn, B) of tobacco and soil in Luliang were analyzed using the classical statistical methods. The result obtained according to the standard for rating the level of available trace elements in soil showed that in soil of Luliang, the contents of available Fe and Mn were 76.78 mg/kg and 36.80 mg/kg, respectively, which were very rich; the contents of available Cu and Zn were 1.59 mg/kg and 2.13 mg/kg, respectively, which were rich; and the content of available B was 0.54 mg/kg, which was moderate. The contents of these trace elements in tobacco were all rich in tobacco, and the content of Cu in tobacco, which were 0.12-62.99 mg/kg, showed no significant correlation with Cu in soil (r=0.056) and was influenced by altitude and organic matter much more; the content of Zn in tobacco, which were 12.62-162.26 mg/kg, was very significantly correlated to available Zn in soil (r=0.084) and influenced by soil available Zn content and pH value much more; the content of Fe in tobacco, which were 71.40-1 861.64 mg/kg, showed no significant correlation with Fe in soil (r=-0.081) and was influenced by organic matter much more; the content of Mn in tobacco, which were 13.73-1 020.22 mg/kg, was significantly correlated to available Mn in soil (r=0.258) and influenced by soil available Mn and altitude pH value much more; the content of B in tobacco,which were 0.58-75.17 mg/kg, showed no significant correlation with B in soil (r=-0.047) and was influenced by altitude and organic matter much more.
国家科技期刊平台
NSTL
万方数据
维普
