施锌量和施锌方式对烤烟产质量的影响

Effects of Different Zinc Application Dosages and Modes on the Yield and Quality of Flue-cured Tobacco

[目的]研究不同施锌量、施锌方式对烤烟产质量的影响。[方法]以云烟87为试验材料,研究了不同处理对烤烟农艺性状、抗病性、初烤烟叶外观质量、烤烟经济性状的影响。[结果]施锌量7.50 kg/hm^2的叶面喷施处理的株高达107.8 cm,极显著高于其他处理,其次是施锌量7.50 kg/hm^2的灌根处理。施锌量7.50 kg/hm^2的叶面喷施处理的发病率比对照降低了6.85%,极显著低于其他处理,施锌量7.50 kg/hm^2的灌根处理次之,其发病率降低了6.13%。施锌量7.50 kg/hm^2喷施和土施处理的产量、产值及中上等烟比例都极显著高于其他处理。[结论]从施锌量来看,施锌量7.50 kg/hm^2对烤烟的改善效果较好好;从施锌方式来看,喷施优于土施。

[Objective]To study the effects of different zinc application dosages and modes on the quality of flue-cured tobacco.[Method]With Yunyan 87 as the test material,we researched the effects of different treatments on the agronomic characters,disease resistance,appearance quality of cured tobacco leaves,economic characters of flue-cured tobacco.[Result]Treatment of 7.50 kg/hm 2 zinc application dosage with leaf spraying had the plant height of 107.8 cm,which was extremely significantly higher than other treatments,followed by the treatment of 7.50 kg/hm 2 zinc application dosage with root irrigation.Incidence rate of the treatment of 7.50 kg/hm 2 zinc application dosage with leaf spraying reduced by 6.85%compared with the control,which was extremely significant lower than other treatments,followed by the treatment of 7.50 kg/hm 2 zinc application dosage with root irrigation(incidence rate reduced by 6.13%).The yield,output value and proportion of middle and superior tobacco leaves of the two treatments were all extremely significantly higher than other treatments.[Conclusion]7.50 kg/hm 2 zinc application dosage showed better impacts on the improvement of flue-cured tobacco,and leaf spraying was superior to root irrigation.