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[目的]检测生石灰对攀枝花烟区酸性土壤的改良效果。[方法]2012~2013连续2年通过田间试验研究4种生石灰施用量(450、900、1 350、1 800 kg/hm~2)对土壤养分及烟叶生产的影响。[结果]在酸性土壤上施用生石灰,不仅对提高土壤p H有明显作用,而且对植烟土壤养分、烤烟产量、产值以及烟叶内在化学成分的变化有明显影响。其中,当生石灰施用量达到1 350 kg/hm~2的标准时,土壤养分调节效果最显著,烤烟产量、质量均达到最高,烟叶内在化学成分最接近优质烟化学内在指标。[结论]该试验为攀枝花烟区的精准化施肥提供了参考。
[Objective] The aim was to detect the improvement effect of quick lime on acid soil in Panzhihua tobacco area. [Method] The soil nutrient and leaf production of 4 kinds of quicklime (450, 900, 1, 350 and 1 800 kg / hm ~ 2) were studied in field experiment from 2012 to 2013 for two consecutive years. [Result] Applying quick lime on acidic soil not only had a significant effect on improving p H of soil, but also obviously affected the changes of tobacco soil nutrient, flue-cured tobacco yield, output value and internal chemical components of tobacco leaf. Among them, when the amount of quick lime reached 1 350 kg / hm ~ 2, the effect of soil nutrient regulation was the most significant, and the yield and quality of flue-cured tobacco reached the highest level. The internal chemical components of tobacco were closest to the intrinsic indexes of high-quality smoke chemistry. [Conclusion] This experiment provided a reference for precise fertilization in Panzhihua tobacco growing area.