氮肥基追比对烤烟产量和品质的影响

Effect of Ratio between Basal and Top-dressing of Nitrogen on Yield and Quality of Flue-cured Tobacco

试验于重庆市万州区研究了氮肥基追比对当地烤烟产量和品质的影响。结果表明,基肥比例为40%时,烟叶产量和产值最高,而基肥比例为60%时,上等烟比例最高;病虫害发生率以不施氮肥的对照为最高,其次为基肥比例为60%的处理;石油醚提取物含量在不同处理间无显著差异;烟叶常规化学成分含量基本适宜。

The experiment was established at the Wanzhou district of Chongqing city to identify the effects of different ratio between basal and top-dressing of nitrogen on yield and quality of flue-cured tobacco. The results showed that the yield and output value was the highest at the T3 treatment（fertilizer proportion was 40% ）, whereas the the percentage of superior leaves was the highest at the T2 treatment（fertilizer proportion was 60% ）. The incidence of diseases and insect pests was the highest in CK, followed by T2 treatment.Petroleum ether extract content had no significant difference between different treatments. The content of conventional chemical composition in tobacco leaves was basically suitable.