氯素营养水平对烤烟生长发育及产质量的影响

Effect of Chlorine Nutrient Levels on Growth, Yield and Quality of Flue-cured Tobacco

摘要: 为了探索福建烟区烤烟土壤氯素的适宜用量和烟叶氯含量的适宜水平,采用盆栽和大田试验方法,分析了土壤中不同水溶性氯含量和不同氯肥用量对烟株生长发育、干物质积累、经济性状、评吸质量的影响。结果显示,福建烟区土壤水溶性氯含量25~35 mg/kg为适宜,15~25 mg/kg 为潜在缺乏,低于15 mg/kg 为缺乏,高于35 mg/kg为丰富;高于330 mg/kg为严重过量,导致烤烟中毒。烟叶中氯含量0.46%~0.66%为适宜,大于0.99%时,烟叶品质受到严重影响。

Abstract: The pot and field experiments were conducted to analyze the effects of different water-soluble chlorine contents and different chlorine fertilizer rates on the growth of tobacco plant, dry matter accumulation, economic properties and smoking quality. The results showed that:It was suitable when the water-soluble chlorine content was between 25 and 35 mg/kg. It was potential deficient when the content was between 15 and 25 mg/kg. It was deficient when the content was below 15 mg/kg. It was rich when the content was above 35 mg/kg. It was severe excessive and would retard flue-cured tobacco growth when the content was above 330 mg/kg. It was suitable when the chlorine content of tobacco leaf was between 0.46% and 0.66%. The quality of tobacco leaf would be influenced seriously when the content was above 0.99%.