攀枝花烟区生石灰施用量与土壤养分及烤烟质量的关系

在攀枝花烟区试验研究酸性土壤施用生石灰对烤烟土壤养分、烤烟产量、产值和烟叶内在化学质量的影响结果表明，在酸性土壤上施用生石灰，对烤烟土壤养分、烤烟产量、产值以及烟叶内在化学成份的变化有明显的影响。其中，当生石灰施用量达到1350 kg/hm2的标准时，土壤养分调节效果最显著，烤烟产量、质量达到最高，烟叶内在化学成份最接近优质烟化学内在指标。

Panzhihua smoke zone and applying quicklime content, soil nutrient and the relationship between the quality of flue-cured tobacco

Abstract: To reveal the effect of quicklime on the acid soil cultivated with flue-cured tobacco in Panzhihua city, Sichuan province, a two years continuous field experiment with four different amount of quicklime including 450, 900, 1,350 and 1,800 kg/hm2 were established, and the soil nutrition and flue-cured tobacco production traits were monitored. The result showed that the application of quicklime in acid soil could significantly increase the soil pH. Meanwhile, the soil nutrients, flue-cured tobacco yields, flue-cured tobacco economic returns and chemical composition of tobacco leaves were all also significantly influenced by using of quicklime. Among the four different amounts of quicklime, the soil nutrients contents, the flue-cured tobacco yields and quality were all reached the highest under the amount of 1,350 kg/hm2, furthermore, the chemical components of the flue-cured tobacco leaves were also very similar to those in the high quality tobacco.