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为了解云南罗平县植烟土壤和烤烟烟叶主要中、微量元素含量情况,测定了罗平县369个土壤和对应C3F等级烟叶的钙、镁、硫、铜、锌、铁、锰和硼含量,并评价了丰缺状况,分析了两者之间的关系。结果表明,罗平土壤中钙、镁、铜、锌、铁和锰含量普遍处于丰富和很丰富的水平,而硫和硼含量相对较低,普遍处于缺和很缺的水平,罗平土壤中有效中、微量元素存在空间上的广泛变异;烤烟生产上应适当增施硼肥。烟叶中硫、铜、锌和锰含量的平均值在适中范围内,铁含量较高,钙、镁和硼含量较低。土壤中有效中、微量元素的含量对烟叶中相对应的中、微量元素有促进作用。土壤中交换性镁对烟叶多种中、微量元素有促进或抑制作用,有效铜表现出了对锌的促进作用和对硼的抑制作用。
In order to understand the contents of major and minor trace elements in tobacco-growing soil and flue-cured tobacco in Luoping County, Yunnan Province, the contents of calcium, magnesium, sulfur, copper, zinc, iron, manganese and boron in 369 soils and corresponding C3F grades of Luoping County were determined. Evaluation of the status of abundance and lack of analysis of the relationship between the two. The results showed that the content of calcium, magnesium, copper, zinc, iron and manganese in Lo soil was generally rich and very rich, while the content of sulfur and boron was relatively low, generally in deficient and deficient levels. , There is a wide range of trace elements variation in space; flue-cured tobacco production should be appropriate to add boron fertilizer. The average values of sulfur, copper, zinc and manganese in tobacco leaves were in a moderate range, with higher iron content and lower calcium, magnesium and boron contents. Effective in the soil, trace element content of tobacco in the corresponding medium and trace elements have a catalytic role. Exchangeable magnesium in soils promoted or inhibited many kinds of trace elements in tobacco leaves, and available copper showed the promotion effect on zinc and the inhibition effect on boron.