| 土壤酸碱度及施硫量对烤烟全硫含量及经济效益的影响 |
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| 引用本文： | 崔权仁,武文明,竟丽丽,齐耀程.土壤酸碱度及施硫量对烤烟全硫含量及经济效益的影响[J].安徽农业科学,2017,45(36):11-13. |
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| 作者姓名： | 崔权仁 武文明 竟丽丽 齐耀程 |
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| 作者单位： | 安徽省农业科学院烟草研究所,安徽合肥,230031;安徽省农业科学院烟草研究所,安徽合肥,230031;安徽省农业科学院烟草研究所,安徽合肥,230031;安徽省农业科学院烟草研究所,安徽合肥,230031 |
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| 基金项目： | 安徽省烟草专卖局科研项目"硫素营养与调控对安徽烟叶质量影响" |
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| 摘 要： | 目的]研究土壤酸碱度及施硫量对烤烟全硫含量及经济效益的影响。方法]探讨安徽烟区不同pH水稻土和施硫量间的相互效应,摸清不同pH及施硫量对烤烟烟叶含硫量的影响规律。结果]施用白云石粉对皖南植烟土壤起到明显降酸作用;在烤烟大田生长期间,冬耕时施入土壤的白云石粉的调酸作用逐渐减弱。在皖南烟区,pH降低有利于烤烟对硫的吸收;随着施硫量的增加,烤烟的上、中、下部烤烟的全硫含量均呈增加趋势;烟叶硫含量由大到小依次为上部叶硫含量、中部叶硫含量、下部叶硫含量。过量施硫对烤烟的经济性状会产生不利影响。结论]安徽省烟区在植烟时调节土壤pH和合理施硫是控制烤烟硫含量的重要途径。
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| 关 键 词： | 土壤 烟叶 硫含量 土壤酸碱度 |
Effects of Soil pH and Sulfur Application Dosage on the Total Sulfur Content and Economic Benefit of Flue-cured Tobacco |
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| Abstract: | Objective] To research the effects of soil pH and sulfur application dosage on the total sulfur content and economic benefit of fluecured tobacco. Method] The mutual effects between paddy soils with different pH and sulfur application dosage in Anhui Tobacco Region were discussed.The influence law of pH and sulfur application dosage on the sulfur content in tobacco leaves were researched.Result] Applying dolomite powder significantly reduced the soil acid in tobacco growing area of southern Anhui Province .During the growing season of flue-cured tobacco, deacidification effect of dolomite powder applied to the soil during winter tillage gradually weakened.In the southern Anhui tobacco area, decreasing pH was beneficial to the absorption of sulfur in flue-cured tobacco.With the increase of sulfur application dosage, the total sulfur content of flue-cured tobacco in the upper, middle and lower flue-cured tobacco showed an increasing trend, and the sulfur contents in different leaf positions from big to small were in the order of the upper leaf sulfur content, middle leaf sulfur content, lower leaf sulfur content.Excessive dosage of sulfur had negative impact on the economic characteristics of flue-cured tobacco.Conclusion] In Anhui province, adjusting the soil pH and reasonable sulfur application dosage is an important way to control the sulfur content of flue-cured tobacco. |
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| Keywords: | Soil Flue-cured tobacco Sulfur content Soil acidity |
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