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分析了云南省陆良烟区土壤硫素和烤烟硫含量的分布状况及其相互关系,结果表明:(1)土壤有效硫含量平均为51.35±33.56 mg kg-1,变幅为13.14~239.74 mg kg-1,其中21.13%的土样处于适宜范围,61.50%的土样偏高。随着p H的增大,土壤有效硫含量降低。随着土壤有机质含量的增加,土壤有效硫含量增加,缺硫样本比例降低。(2)烤烟硫含量平均为0.238%±0.116%,变幅为0.07%~0.886%,59.25%的烟样处于0.2%~0.7%适宜范围内,40.37%的烟样小于0.2%,仅有0.38%的样本大于0.7%。不同品种间烤烟硫含量为K326>红大>NC102>NC297>云烟97>云烟87。(3)烤烟硫含量(y)与土壤有效硫含量(x)呈极显著直线正相关(y=0.001x+0.2,R=0.233)。(4)烤烟硫含量与总糖、还原糖、氯、镁、钼、钾、磷、铜、锌、硼、石油醚提取物、挥发性酸、绿原酸、莨菪亭、香气质、香气量、余味和燃烧性达显著(P<0.05)或极显著(P<0.01)相关。
The results showed that: (1) The average effective sulfur content in soil was 51.35 ± 33.56 mg kg-1, with the amplitude ranging from 13.14 to 239.74 mg kg- 1, of which 21.13% of the soil samples are in the suitable range and 61.50% of the soil samples are high. As p H increases, soil available sulfur decreases. With the increase of soil organic matter content, the effective sulfur content of soil increased, and the proportion of sulfur-deficient samples decreased. (2) The average sulfur content of flue-cured tobacco was 0.238% ± 0.116%, the amplitude ranged from 0.07% to 0.886%, the range of 59.25% was 0.2% ~ 0.7%, the rate of 40.37% was less than 0.2%, only 0.38% Samples of more than 0.7%. The sulfur content of different varieties of flue - cured tobacco was K326> Hongda> NC102> NC297> Yunyan97> Yunyan87. (3) The flue-cured tobacco sulfur content (y) was positively correlated with soil available sulfur (x) (y = 0.001x + 0.2, R = 0.233). (4) The contents of total sulfur and total sugar, reducing sugar, chlorine, magnesium, molybdenum, potassium, phosphorus, copper, zinc, boron, petroleum ether extract, volatile acid, chlorogenic acid, , Aftertaste and flammability were significantly (P <0.05) or significantly (P <0.01) related.