摘要
通过分析四川省会理烟区土壤及红花大金元烟叶各30份样品中微量元素含量,研究了会理烟区植烟土壤与烟叶中中微量元素含量之间的定量关系。结果表明:会理烟区大部分土壤中微量元素含量在较适宜的范围内,但部分土壤水溶性硼、有效锌含量较低,烟叶中铜元素、镁元素含量较缺乏;利用多元线性逐步回归分析得到土壤与烟叶中微量元素的回归方程,其中烟叶中的锰、锌含量均受到土壤中5个中微量元素的综合影响,而钙含量仅受到土壤中有效锰和交换性钙的影响;偏相关和通径分析结果表明,烟叶中微量元素与其对应的土壤内中微量元素呈极显著正相关,且直接作用系数最大。土壤中的中微量元素之间存在着广泛的协同或拮抗效应,其中土壤有效锰的含量对烟叶所有中微量元素含量的影响最大,而烟叶锌含量受土壤中其他中微量元素的影响最大。
Through the analysis of the medium and micro elements contents in 30 samples of soil and flue-cured tobacco （Nicotiana tabacum L. ） cuhivar Honghuadajinyuan collected from Huili tobacco-growing areas of Sichuan Province, this paper studied the quantitative relationships of the elements contents between soil and flue-cured tobacco. In most soils of Huili tobacco-growing areas, the medium and micro elements contents were in suitable range; but in parts of the soils, the contents of water-soluble boron and available zinc were lower. The tobacco leaves had low contents of copper and magnesium. Multiple linear regression analysis showed there were significant relationships of the medium and micro elements contents between soil and tobacco leaves. The Mn and Zn contents in tobacco leaves were significantly affected by the contents of five medium and micro elements in soil, but the Ca content in tobacco leaves was only affected by the DTPA-Mn and exchangeable Ca contents in soil, Partial correlation and path analysis suggested that the micro elements contents in tobacco leaves were positively correlated with the corresponding micro elements contents in ,soil, and the direct effect coefficient was the maximum. There existed synergistic and antagonistic effects among the medium and micro elements in soil. The contents of all the medium and micro elements in tobacco leaves were most affected by the available Mn content in soil, but the Zn content in tobacco leaves was most affected by the other medium and micro elements in soil.
出处
《生态学杂志》
CAS
CSCD
北大核心
2010年第6期1127-1134,共8页
Chinese Journal of Ecology
基金
国家烟草专卖局资助项目(110200201007)
关键词
会理烟区
土壤
烤烟
中微量元素
多元统计分析
Huili tobacco-growing area
soil
flue-cured tobacco
medium and micro elements
multivariate statistical analvsis.
